TechSEO

“Missing HSTS from HTTPS Server” or Missing HSTS Error and warning involves the missing HSTS response header and command from the response of the webserver. HSTS is to provide an end-to-end secure web browsing and website session for web users. Missing HSTS is a concern for web security and user privacy. Websites use HTTP to … Read more

Absolute URL and Relative URL Differences involve the URL Structure differences. An absolute URL is a URL with full protocol, domain name, domain extension, path, query parameter, query string, and fragment. A relative URL uses only a certain section of the URL to make the web browser resolve the address of the resource or the … Read more

The Protocol-relative URL involves a URL that is opened via HTTP and HTTPS protocols at the same time. A CSS, JS, Image, Font file, or Web Document (HTML Document) can be opened via SSL and without SSL according to the webserver configuration and requestor request HTTP headers. Protocol-relative URL is opened by the web browser … Read more

The Keep-Alive HTTP Header general-header allows the sender to specify how the connection should be used, such as setting a timeout and a maximum number of requests. If you want this header to have any effect, you must set the Connection header to Keep-Alive HTTP Header. The Connection general header determines whether or not the … Read more

The Server-Timing HTTP Header expresses one or more metrics and descriptions for a specific request-response cycle. It is used to display any backend server timing metrics (for example, database read/write, CPU time, file system access, and so on) in the developer tools in the user’s browser or in the PerformanceServerTiming interface. The PerformanceServerTiming interface displays … Read more

The Server HTTP Header is a type of response header that contains information about the software that the server is using to process all requests. The Server HTTP Header contains only a few characteristics about the server, such as the server name and the software used to manage the server, such as sffe or cloudflare. … Read more

Public-Key-Pins HTTP Header is a response header that is used to associate a specific cryptographic public key with a specific web server in order to reduce the risk of MITM attacks with forged certificates. A manipulator-in-the-middle attack (MitM) is when someone is in the middle of a communication between two systems. For example, a Wi-Fi … Read more

The Referer HTTP Header is a request-type header that indicates the previous web page’s address and how it relates to the current web page or resource being accessed. The use of this header raises the risk of a website’s privacy and security being compromised, but it does allow websites and web servers to determine where … Read more

The Pragma HTTP Header HTTP/1.0 general-header is an implementation-specific header that can have a number of different impacts along the request-response chain. This header ensures compatibility with HTTP/1.0 caches that lack a Cache-Control HTTP/1.1 header. The Cache-Control HTTP header field contains directives (instructions) that control caching in browsers and shared caches in both requests and … Read more

In the Sec-CH-UA HTTP Header user agent client hint request header, the user-branding agent’s and significant version information are included. In a comma-separated list, the Sec-CH-UA header indicates the brand and significant version for each of the browser’s linked brands. Sec-CH-UA is a suggestion with low entropy. In most cases, it is delivered by default … Read more

The Origin HTTP Header is a response HTTP header that tells you about the security contexts that start an HTTP request without giving you the path information. The Origin HTTP Header is added by the browser and can’t be changed by the person who is using it. There are multiple values for using the Origin … Read more

The Sec-Fetch-Site fetch metadata request header specifies the relationship between the origin of the request initiator and the requested resource’s origin. In other words, this header indicates to a server if a request for a resource originates from the same origin, the same site, a different site, or is “user-initiated.” The server can then use … Read more

The Sec-CH-UA Platform HTTP Header user agent client hint request header tells you what platform or operating system the user agent is running on, so you can figure out what it is. If you want to use “Windows,” for example, you can say that. The Sec-CH-UA Platform HTTP Header low entropy is a clue that … Read more

The NEL HTTP Header is also a JSON-formatted array of objects that refers to the previously mentioned Report-To header’s reporting endpoint. The NEL HTTP Header is a Report-To header extension that instructs the user agent to send network error reports. As a result, configuring a NEL header without a Report-To header is impossible. The NEL … Read more

The Sec-Fetch-User fetch metadata request header is only sent when a user is activated. The value of this header will always be “?1.” A fetch metadata request header is an HTTP request header that gives more information about where the request came from. When the server sees where the request came from and what it … Read more

The Sec-CH-UA-Mobile user agent client hint header in the request specifies whether the browser is running on a mobile device. Additionally, a desktop browser can use it to signal a preference for a “mobile” user experience. Sec-CH-UA-Mobile HTTP Header is a low-entropy hint. Low entropy suggestions include little information that may be used to “fingerprint” … Read more

The Sec-CH-UA-Full-Version HTTP Header user agent client hint request header contains the full version string of the user agent. There is only one value for using the Sec-CH-UA-Full-Version HTTP Header. The value for using the Sec-CH-UA-Full-Version HTTP Header is the version. An example of the Sec-CH-UA-Full-Version HTTP Header is written below.  The Sec-CH-UA-Full-Version HTTP Header … Read more

The Sec-CH-UA-Full-Version-List HTTP Header user agent client hint request header contains information about the user agent’s branding as well as its full version number. Each brand linked with the browser is listed in a comma-separated list in the Sec-CH-UA-Full-Version-List HTTP Header, which contains the brand and full version information for each brand. The Sec-CH-UA-Full-Version-List HTTP … Read more

The Sec-Fetch-Dest HTTP Header fetch metadata request header specifies the destination of the request. This is where and how the fetched data was requested in the first place, and it’s the one who made the original fetch request. Using this method, servers can determine whether a request is appropriate for the intended purpose for which … Read more

The Sec-Fetch-Mode HTTP Header fetches metadata request header specifies the request mode. In general, this enables a server to differentiate between requests originating from a user moving between HTML pages and requests to load graphics and other resources. For example, navigate is used for top-level navigation requests, while no-cors is used to load an image. … Read more

The Sec-CH-UA-Bitness HTTP Header specifies the “bitness” of the user agent’s underlying CPU architecture in the Sec-CH-UA-Bitness user agent client hint request header. The size of an integer or memory address in bits—typically 64 or 32 bits. There is only one value for using the Sec-CH-UA-Bitness HTTP Header. The value using the Sec-CH-UA-Bitness HTTP Header … Read more

The X-Forwarded-Host HTTP Header is a de facto standard request-type header. This header is used to identify the client’s initial request. Due to the fact that the hostnames and ports of reverse proxies differ at that time, this header took the initiative and identified the originating request. Additionally, this header can be utilized for debugging … Read more

The Sec-CH-UA-Arch HTTP Header user agent client hint request header specifies the underlying CPU architecture of the user agent, for example, ARM or x86. This could be used by a server to determine and offer the appropriate binary format for a user to download. There is only one value using the Sec-CH-UA-Arch HTTP Header. The … Read more

The X-Forwarded-For HTTP Header is a de-facto standard header for identifying a client’s originating IP address when connecting to a web server via an HTTP proxy or a load balancer. The X-Forwarded-For HTTP Header allows the client and server to provide additional data with an HTTP request or response. When traffic between clients and servers … Read more

The Sec-CH-UA-Platform-Version HTTP Header is a header in the Sec-CH-UA-Client-Hint request that tells the client what operating system version the client is running. There is only one value for using the Sec-CH-UA-Platform-Version HTTP Header. The value using the Sec-CH-UA-Platform-Version HTTP Header is the version. The version string usually contains the operating system version in the … Read more

The X-Forwarded-Proto HTTP header is a de-facto standard for identifying a client’s connection protocol (HTTP or HTTPS). From your server access logs, it is not clear which protocol is being utilized between the server and the load balancer. The X-Forwarded-Proto HTTP Header request header can be used to determine the client-load balancer protocol. The X-Forwarded-Proto … Read more

The Save-Data HTTP Header network client hint request header field is a boolean that shows whether the client wants to use fewer data. This could be because of things like high transfer costs, slow connection speeds, or other things like that. Clients can send Save-Data even if they didn’t ask for it from the server … Read more

In milliseconds, the RTT HTTP Header Client hint request header field tells you how long it will take for the application layer to get back to you. The RTT HTTP Header hint, unlike the transport layer RTT HTTP Header, includes the time it takes for the server to process. The RTT HTTP Header value is … Read more

The Warning HTTP header offers information about potential issues with the message’s status. A response may have multiple Warning headers. The Warning HTTP header contains information about potential problems with the message’s status that may not be reflected in the message. The Warning HTTP Header has multiple values. The warn-code includes a warn-agent, a warn-text, … Read more

The Want-Digest HTTP header is most commonly used in an HTTP request to request that the server give a digest of the requested resource using the Digest response header. The header includes identifiers for one or more digest algorithms that the sender wants the server to employ to generate the digest. Quality values can be … Read more

The X-DNS-Prefetch-Control HTTP Header response type header indicates to the browser whether or not to perform DNS prefetching. Turning it on may not work in all scenarios, as not all browsers support it. Disabling it should result in its removal from all supported browsers. The majority of browsers will disregard this header because they do … Read more

The Host HTTP Header request header gives the host and port number of the server that is receiving the request. If no port is specified, the assumed default port for the requested service is (e.g., 443 for an HTTPS URL, and 80 for an HTTP URL). All HTTP/1.1 request packets must include a Host HTTP … Read more

The From HTTP Header request header specifies an Internet email address for a human user who is the owner of the requesting user agent. If you are using a robotic user agent (e.g., a crawler), the From HTTP Header must be given so that you can be contacted if any server difficulties occur, such as … Read more

The Link HTTP Header entity-header field allows one or more links to be serialized in HTTP headers. It has the same semantics as the HTML link> element. The HTML element link> specifies relationships between the current document and an external resource. This element is most commonly used to link to stylesheets, but it is also … Read more

The Forwarded HTTP Header request header contains information that reverse proxy servers may add that would otherwise be altered or lost during the request’s path through proxy servers. While accessing the Internet’s many networks, proxy servers and HTTP tunnels facilitate access to World Wide Web information. A proxy server can be located on the user’s … Read more

The Via header is added by proxies, both forward and reverse. The Via Header can appear in the request or response header. The Via HTTP Header is used for tracking message forwards, avoiding request loops, and identifying the protocol capabilities of senders along the request/response chain. The header type of Via HTTP is the General … Read more

The ECT HTTP Header Client hint request header field indicates the effective connection type: slow-2g, 2g, 3g, 4g. Based on the time between the browser requesting a page and the effective type of the connection, effective connection type (ECT) refers to the measured network performance, returning a cellular connection type, such as 3G, even if … Read more

The User-Agent HTTP Header is a request header that contains a string identifying the operating system and browser used by the webserver. The User-Agent HTTP Header contains the User-Agent string. The User-Agent request header is a unique string that enables servers and network peers to identify the requesting user agent’s application, operating system, vendor, and/or … Read more

The Early-Data HTTP Header is set by an intermediate to indicate that the request was sent using TLS early data. TLS 1.3 is a significant update to TLS. TLS 1.3 introduces a number of enhancements aimed at enhancing security and performance. Additionally, the Early-Data HTTP Header specifies that the intermediary understands the status code 425 … Read more

The Viewport-Width HTTP Header device client hint request header specifies the width of the client’s layout viewport in CSS pixels in the request header. To use the Viewport-Width HTTP Header, the developer must use similar HTTP Headers to Viewport-Width HTTP Header, which is the client hint request. A “Client Hint Request” is a set of … Read more

The Transfer-Encoding HTTP header is a response-type header that acts as a hop-by-hop header; the hop-by-hop header connection is the unique transport-level connection that must not be re-transmitted. This header is used to communicate between two nodes (single transport-level connection). If there is a multi-node connection, then additional Transfer-Encoding settings must be used. There is … Read more

The Trailer HTTP Header is a response header that indicates the presence of a specified set of header fields in the trailer of a message encoded using chunked transfer-coding. It enables senders to put additional fields at the end of chunked messages to deliver metadata. The chunked transfer encoding is a data transport technique included … Read more

The Set-Cookie2 HTTP Header is a response-type header that has been obsolete. The Set-Cookie2 HTTP Header provides a means for the client and server to exchange state information. This command is typically replaced by the Set-Cookie HTTP command rather than the Set-Cookie2 HTTP Header. Set-Cookie HTTP is an HTTP response header that is used to … Read more

The Sec-Websocket-Accept HTTP headers are used to send additional information between the client and the server with an HTTP request or response. They are subdivided into general headers, request headers, response headers, and entity headers. The Sec-WebSocket-Accept HTTP Header is part of the response-type headers group. It is used by the server to let the … Read more

The DPR HTTP Header device client hint request header contains the pixel ratio of the client device. This ratio indicates the number of physical device pixels required to represent each CSS pixel. The word “CSS pixel” refers to the CSS unit of absolute length px, which is specified normatively as exactly 1/96th of an inch. … Read more

The Digest HTTP Header contains a digest of the requested resource’s selected representation. Representations are various forms of a specific resource that may be returned in response to a request: for example, the same resource may be formatted in a specific media type such as XML or JSON, localized to a specific written language or … Read more

The Device-Memory HTTP Header device client hint request header field indicates the client device’s approximate amount of available RAM. The Digest HTTP Header is part of the Device Memory API, and it tells web browsers how much memory is in the device. RAM is a big factor in how well a client device can do … Read more

The Sec-CH-UA-Model HTTP Header user agent client hint request header identifies the browser’s operating system and device model. There is only one value for using the Sec-CH-UA-Model HTTP Header. The value for using the Sec-CH-UA-Model HTTP Header is the device-version. The device-version is a string with the device’s model number. “Pixel 3” is a good … Read more

The Downlink HTTP Header Client hint request-header field contains the approximate bandwidth of the client’s connection to the server, expressed in megabits per second. To avoid fingerprinting, the Downlink HTTP Header value is specified in Mbps and rounded to the nearest 25 kilobits per second. Numerous more techniques exist for an attacker to gain similar … Read more

The Location HTTP Header interface represents the URL of the object to which it is linked. Changes made to it are reflected in the object to which it is related. The Document and Window interfaces both have such a linked Location, which can be accessed via Document.location and Window.location, respectively. The Document interface represents any … Read more

The Cookie2 HTTP Header is a request type header that has been used to inform the server that the user agent understands “new-style” cookies, but it is no longer used; instead, the Cookie HTTP Header is used. A Cookie HTTP Header is an HTTP request header that is used in requests sent to the server … Read more

The Public-Key-Pins-Report-Only is an HTTP Response Header created for pinning violations. The HTTP Public-Key-Pins-Report-Only response header sends a report to the report-URI (Uniform Resource Identifier) for pinning violations. Pinning is a method that permits you to define a cryptographic identity. Pinning provides security improvement for a website that depends on SSL Certificates. SSL (Secure Sockets … Read more

The Allow HTTP Header is a type of Entity header that specifies the valid methods that a resource supports. It is used in response to a 405 Method is not a permitted error. If this header value is missing, it indicates that the resource does not support any request methods. The HyperText Transfer Protocol (HTTP) … Read more

The Age HTTP Header specifies the amount of time in seconds that an object was cached by a proxy. Typically, the Age HTTP Header value is close to zero. If Age: 0 is specified, it was most likely retrieved from the origin server; if not, it was often calculated as the difference between the proxy’s … Read more

The SourceMap HTTP Header response header links generated code to a source map, enabling the browser to reconstruct the original source and present the reconstructed original in the debugger. There is only one value for using the SourceMap HTTP Header. The value using the SourceMap HTTP Header is the URL. An example of the SourceMap … Read more

The Access-Control-Allow-Credentials is an HTTP response header that notifies the web browser to display the response when the Request’s credentials mode is “include”. Request’s credentials is a read-only property that contains the credentials of the request. Credentials can be in a form of cookies, authorization headers, or client certificates. The “include” command refers to the … Read more

The TK is an HTTP response header that determines the tracking status of the equivalent request. The Tk HTTP response header is defined for communicating the web server’s tracking performance. Tracking is the compilation of data concerning a specific user’s activity across multiple distinct contexts or sharing of information obtained from the user’s activity outside … Read more

The Content-Location HTTP Header specifies the location of the data in the event that the request fails. The most common application is to display the URL of a resource that was sent via content negotiation. Content negotiation is a technique for serving multiple representations of a resource to the same URI, allowing the user agent … Read more

The Access-Control-Max-Age is an HTTP Response Header that determines the length of time the results of a preflight request can be cached. The results of a preflight request are the information included in the Access-Control-Allow-Methods and Access-Control-Allow-Headers HTTP response headers. By default, the number of seconds the results of a preflight request can be cached … Read more

Access-Control-Expose-Headers is an HTTP response header that determines which headers are to be exposed to the client scripts on a web browser, as a part of a response to a CORS (Cross-Origin Resource Sharing) request. CORS (Cross-Origin Resource Sharing) is an HTTP-header-based mechanism that allows verified access to other resources located outside the domain. The … Read more

The Access-Control-Allow-Origin is a HyperText Transfer Protocol (HTTP) Response Header that determines if the response is allowed to be shared with the requesting code from a specified origin. The Access-Control-Allow-Origin HTTP response header notifies the web browser if the response can be shared by returning the value of the `Origin` request header, which can either … Read more

The Accept-CH is an HTTP response header used by the webserver to request other information from web browsers regarding the client’s device, network, and user agent preferences. The Accept-CH HTTP header allows web servers to customize the content they serve by optimizing images and other content for mobile devices or users on low-bandwidth connections. The … Read more

The Accept-Encoding HTTP request header determines the content compression algorithm that will be accepted. Accept-Encoding HTTP Header is related to Content-Encoding. When data are compressed in Content-Encoding, the Accept HTTP header will inform the browser whether a client can manage the compressed algorithm of the website. Content-Encoding is used for data compression, where representation’s data … Read more

The Vary HTTP response headers determine how upcoming request headers should be combined. Vary HTTP header is necessary to decide whether or not a cache response is supplied to reduce response time or a new response will be requested to the origin server. An HTTP cache is local storage used to store cacheable response messages … Read more

The If-Range HTTP request header is a header field name that provides a conditional method to a Range HTTP request header. The Range HTTP request header specifies the part of a web page or a resource that the webserver is requested to return. The web server should provide the specified sub-range of the entity using … Read more

Accept-Language is a type of HTTP Request header that determines the client’s preferred language, either the local or the natural language. The Accept-Language HTTP Request header can include multiple languages. Accept-Language HTTP request header values can be separated with a comma. The search engine determines the appropriate values for the Accept-Language HTTP Request header based … Read more

The Access-Control-Allow-Methods is an HTTP response header that determines the acceptable methods to connect to a specific resource in response to the given preflight request. A preflight request allows a web server to check how the actual request will appear before being created. The web server will recommend a web browser if the actual request … Read more

The Access-Control-Allow-Headers is an HTTP response header that specifies which HTTP headers are supported by the response’s URL for the CORS (Cross-Origin Resource Sharing) protocol. A Cross-Origin Resource Sharing (CORS) is an HTTP-header-based method that enables a web server to determine any other origin or domain than its own from which a web browser allows … Read more

The Content-Length HTTP Header entity-header is used to communicate to the recipient the size of the entity-body in decimal octets, or bytes. This is an illegal header name. Essentially, it refers to the amount of data contained in the body of the request or response. The body follows the blank line immediately below the headers. … Read more

Authorization HTTP Request Header is an HTTP header for authorization of access to a web server. HTTP Authorization is used for securing resources within a web server. The Authorization HTTP Header is used with WWW-Authenticate HTTP Header. If there is a protected resource with HTTP WWW-Authenticate, the webserver will give the 401 HTTP Status Code. … Read more

WWW-Authenticate header is an HTTP header that is used to determine which HTTP Authentication program will be applied to access a web server.  WWW-Authenticate HTTP header is used by the server to provide responses to specify the effect of the response after credentials are provided. A status code of 401 (Unauthorized) will be sent as … Read more

The X-Content-Type-Options HTTP Header response HTTP header is a server-side marker that indicates that the MIME types advertised in the Content-Type headers should be followed and not changed. A media type, also known as a Multipurpose Internet Mail Extensions or MIME type, specifies the nature and format of a document, file, or byte arrangement. The … Read more

The 418 HTTP Status Code means that i’m a teapot indicates that the server is unable to brew coffee due to the fact that it is permanently configured as a teapot. When a coffee/tea pot is out of coffee, it should return 503. Hyper Text Coffee Pot Control Protocol, as defined in April Fool’s Day … Read more

The 417 HTTP Status Code means that the request’s expectation failed, which indicates that when the server is unable to match the expectation specified by the Expect request-header field, an error will result. The difference between HTTP Status Codes 400 and 417 is that the 400 HTTP Status Code indicates that the server could not … Read more

The DNT HTTP Header request header indicates the user’s preference for tracking. It allows users to choose whether they prefer privacy or personalized content. The DNT HTTP Header has been deprecated because it is no longer recommended. Though some browsers may still support it, it may have already been removed from the relevant web standards, … Read more

HTTP headers are used to send extra information with an HTTP response or request. The Date HTTP header contains the message’s creation date and time. It is supported by every browser. There are multiple values using the Date HTTP Header. The values using the Date HTTP Header are day name, day, month, year, hour, minute, … Read more

Content Negotiation is the method used by a client to request a specific Representation that fits the user requirements. The most suitable Representation for the user agent is selected from various presentations from the REST (Representational State Transfer) resources. The advantage of Content Negotiation is that it allows the technology to be released from the … Read more

The Connection HTTP Header general-header specifies whether or not the network connection should be maintained after the current transaction is complete. If keep-alive is specified, the connection is persistent and is not closed, allowing for subsequent requests to the same server.HTTP/2 prohibits the use of connection-specific header fields such as Connection and Keep-Alive. While Chrome … Read more

The Clear-Site-Data HTTP Header is a type of response header. The Clear-Site-Data HTTP Header is used to remove browsing data from the requesting website. Cache, cookies, and storage are all types of browsing data. It enables web developers to have greater control over data stored locally by the browser. The Cache interface provides permanent storage … Read more

The X-Frame-Options HTTP response header can be used to indicate whether a browser should be permitted to render a page within a <frame>, an <iframe>, an <embed>, or an <object>. Websites can utilize this to protect themselves from click-jacking attacks by ensuring that their content is not integrated into other websites. The HTML element <frame> … Read more

The Content-Disposition HTTP Header response header is a header that indicates whether the content will be displayed inline in the browser, that is, as a Web page or as part of a Web page, or as an attachment that will be downloaded and saved locally. The HTTP Content-Disposition HTTP Header is a header that must … Read more

The Content-Type HTTP Header is used to display the asset’s first media type before any substance encoding is used for transmission. The mime type, which is now appropriately called “media type,” but sometimes is “content type,” is a string sent alongside a record demonstrating the type of the document depicting the substance design, for example, … Read more

The Content-Encoding HTTP Header specifies which encodings were used to encode the representation and in what order. This instructs the recipient on how to decode the representation and acquire the payload’s original format. In order to reduce the size of a message. The Content-encoding HTTP Header is most commonly used to encode it. The Content-Type … Read more

HTTP headers are used to include additional data in HTTP requests and responses. The Retry-After HTTP Header is an HTTP response header that specifies the amount of time to wait before making another request. The Retry-After HTTP Header response header has a variety of uses depending on the status code. The status code 503 indicates … Read more

The Content-Language HTTP Header representation header is used to describe the language intended for the audience, allowing users to differentiate it based on their preferred language. Instead, use the lang attribute to specify the language in which the document is written. The lang global attribute defines an element’s language, either the language in which non-editable … Read more

The If-Match HTTP Header conditionally sends the request. The server will return the requested resource only if it matches one of the listed ETags for the GET and HEAd methods. The HTTP GET method is used to obtain a representation of the requested resource. GET requests should be used exclusively to obtain data. The HTTP … Read more

The Accept-CH-Lifetime HTTP header is set by the webserver to define the persistence of the Accept-CH HTTP header value. The Accept-CH HTTP response header specifies which HTTP Client Hints the client should include in subsequent requests. The Accept-CH HTTP response header is used by the webserver to request additional information from web browsers about the … Read more

The 500 HTTP Status Codes which means internal server error indicates that The server was unable to fulfill the request because of an unanticipated issue. In this case, the error message is a general “catch-all.” Typically, this implies that the server is unable to locate a more appropriate 5xx error code. Server administrators may choose … Read more

The 451 HTTP Status Code means that the request is unavailable for legal reasons indicates that as a result of a legal demand, the server is limiting access to the resource. It is possible that the server in issue is not an origin server. Typically, this form of legal demand has the greatest direct impact … Read more

The 305 HTTP Status Code means that the request is using a proxy. The 305 HTTP Status Code indicates that the requested resource is only accessible via a proxy. The proxy address is the one provided in the response. For security reasons, HTTP clients such as Mozilla and Internet Explorer do not handle responses with … Read more

The 304 HTTP Status Code means that it is not modified. In the 304 HTTP Status Code, there is no compelling reason to retransmit the objects that were previously referenced. It is an understandable redirection to the resource that was sought. This happens when the request technique is a protected method, such as GET or … Read more

The 303 HTTP Status Code See Other means that the redirects don’t connect to the recently transferred resource, but to another page, for example, an affirmation page or a transfer progress page. Since the redirection may be modified once in a while, the client should keep on utilizing the Request-URI for future requests. This 303 … Read more

The 302 HTTP Status Code means that the resource being referenced has been found. The 302 HTTP Status Code reference is temporarily relocated to the URL specified by the Location header in the request. In 302 HTTP Status Code, when a program redirects to this page but search engines do not update their connections to … Read more

The 428 HTTP Status Code indicates that the request was preconditioned required. The 428 HTTP Status Code is one of the 4xx(Server Error) response codes that indicate the server anticipates conditionality in the request. The 428 HTTP Status Code indicates that the origin server requires a conditional request. The purpose of the 428 HTTP Status … Read more

The 301 HTTP Status Code response means that the resources have moved permanently. The 301 HTTP Status Code indicated resource has been definitively moved to the URL supplied by the Location headers. Software redirection to the new URL and search engines modify their links to the resource. Considering the possibility that the server has a … Read more

The 426  HTTP Status Code indicates that the request was an upgrade required. The 426 HTTP Status Code refuses to process the request using the current protocol but may be willing to do so after the client switches to a different protocol. There is only one method used with the 426 HTTP Status Code which … Read more

The 425 HTTP Status Code means that the request is too early, which indicates the server is unwilling to take the risk of performing a possibly replayed request. When a user agent sends an early data request and receives a 425 HTTP response Status Code, the user agent is supposed to retry the request. While … Read more

The 226 HTTP Status Code means that it is IM used. In the 226 HTTP Status Code, the server has fulfilled a GET request for the resource, and the response is a portrayal of the result of at least one case controls done to the current occurrence. The 226 HTTP Status Code is used because … Read more

The 424 HTTP Status Code indicates that the method was a failed dependency. The 424 HTTP Status Code method could not be executed on the resource because the requested action was dependent on another action, which failed. For example, if one order in a PROPPATCH method fails, at least one of the remaining orders will … Read more

The 207 HTTP status code means that the request is a multi-status response that includes information on a variety of resources. It is followed by an XML message containing individual response codes. In situations where more than one status code may be appropriate, using the 207 HTTP Status Code in a website tells people about … Read more

The 208 HTTP Status Code means that the request is already reported used inside of the <dav:propstat> and its response element to avoid enumerating the internal members of multiple bindings to the same collection multiple times. For each binding to a collection inside the request’s scope, only one will be reported with a 200 status, … Read more

The 423 HTTP Status Code means that the resource that is being accessed is locked. In the 423 HTTP Status Code, The response should contain a suitable precondition or postcondition code, for example, ‘lock-token-submitted’ or ‘no-clashing lock’. The 423 HTTP Status Code is used in circumstances where the client could possibly resolve the contention and … Read more

The 422 Status Code means that the server was an unprocessable request. The 422 HTTP Status Code acknowledges the type of content request entity and the syntactic of the request entity, but it was unable to process the contained guidelines. This request should not be repeated without modification by the client. Such an event might … Read more

The 421 HTTP Status Code means that the request was misdirected request. The 421 HTTP Status Code request was directed to a server that is incapable to deliver a response. This may be delivered by a server that isn’t meant to generate responses for the combination of method and authority in the request URI, such … Read more

The 411 HTTP Status Code indicates that the request is Length Required. The 411 HTTP Status Code is sent by the server as a response when it refuses to accept a message without a content-length header, for whatever reason. A server simply may or may not accept content without a Content-Length header. The difference between … Read more

The 412 HTTP Status Code means that the request is preconditioned failed. When one or more of the conditions specified in the request header fields were tested on the server, the precondition failed. The 412 HTTP Status Code enables the client to impose preconditions on the current resource state, representations, and metadata, preventing the request … Read more

The 410 HTTP Status Code means that the request is gone. The 410 HTTP Status Code indicates that the origin server is no longer available and that this condition is likely to be permanent. If the origin server does not know or does not have the capability to determine whether the condition is permanent, the … Read more

The 413 HTTP Status Code indicates that the request was too large for the server to handle, either because of physical constraints or because of settings. This usually happens when a file is sent via the POST method from a form and the file size exceeds the maximum size allowed in the server settings. The … Read more

The 204 HTTP Status Codes means it has no content. The 204 HTTP Status Code’s webserver has effectively satisfied the request and there is no substance to send in the response payload body. The server should return refreshed meta-data as element headers, which, if present, ought to be applied to the current archive’s dynamic view … Read more

The 416 HTTP Status Code which means that range is not satisfiable indicates that the server is unable to provide the requested ranges. Either the page does not include any such ranges, or the Range header value is nonsensical despite its proper syntactic usage. The 416 response message includes a Content-Range indicating an unfulfilled range … Read more

The 415 HTTP Status Code means that the request is unsupported media type indicates that the server rejects the request due to the payload format being unsupported. The format problem could be caused by the request’s specified Content-Type or Content-Encoding, or it could be the result of directly analyzing the data. The difference between HTTP … Read more

The 414 HTTP Status Code means that the request’s URI is too long, which indicates that the response Status Code indicates that a larger URI is required by the client, and the server is unwilling to interpret it. There are a few unusual circumstances under which this could occur.  When a client incorrectly converts a … Read more

The 420 HTTP Status Code means that the request enhances your calm. The 420 HTTP Status Code is an unofficial extension by Twitter. It was useful enough for Twitter to add a new HTTP status code to the protocol. Adding your own HTTP status codes, on the other hand, is a bad idea and should … Read more

The 405 HTTP Status Code means that the method is not allowed. In the 405 HTTP Status Code, the Request-Line isn’t considered the resource distinguished by the Request-URI. The response should incorporate an Allow header containing a rundown of substantial strategies for the mentioned asset. There are three methods expressed to use the 405 HTTP … Read more

The 419 HTTP Status Code means that there has been a post error. In most cases, the 419 HTTP Status Code post problem is caused by the api.php file and the token authorization. The 419 HTTP Status Code is generated as a result of a CSRF token verification failure, a misconfigured cache, misconfigured permissions, incorrect … Read more

The 404 HTTP Status Code means that it is not found. In the 404 HTTP Status Code, the server has not observed anything matching the Request-URI. No sign is given of whether the condition is impermanent or long-lasting. The 404 HTTP Status Code is usually utilized when the server doesn’t wish to uncover precisely why … Read more

The 403 HTTP Status Code means that the request is forbidden indicates that the server understands the request but refuses to authorize it. This status is similar to 401, but for the 403 Forbidden Status Code re-authenticating makes no difference. The access is permanently forbidden and tied to the application logic, such as insufficient rights … Read more

The 402 HTTP Status Code means that the request is payment required that can be used in the future to indicate a nonstandard response. Digital cash or (micro)payment systems can be enabled with this Status Code, and it indicates that the requested content will not be available until the customer makes a payment. There are … Read more

The 400 Bad Request error is an HTTP status code that indicates that the request you provided to the website server, which is usually something as basic as a request to load a web page, was incorrect or damaged and the server couldn’t interpret it. The 400 Bad Request error is frequently produced by entering … Read more

The 300 HTTP Status Codes means that the request seems to have more than one potential response. The user agent or user should pick one of the 300 HTTP Status Codes. There is no defined technique to pick one of the responses. As there is no defined manner of picking one of the responses, this … Read more

The HTTP 200 OK success status response code represents a successful HTTP request. The 200 responses are cacheable by default. The GET, HEAD, PUT, POST, and TRACE request method determines the meaning of success 200 Status Code. An origin server generates a payload body of zero length. Aside from CONNECT responses, a 200 response always … Read more

The 306 HTTP Status Code means that the request is a switch proxy. The HTTP Status Code 306 is no longer valid. Initially, it indicated that subsequent requests should be routed through the specified proxy. What does 306 HTTP Status Code Mean? Originally, HTTP Status Code 306 meant that subsequent requests should use the specified … Read more

The 201 HTTP status code means that a request is successful to a resource that was created as a result. The new resource is effectively created before the response code is returned. It is returned to the response message’s body. Its location is either the request’s URL or the content of the Location header. It … Read more

The 202 HTTP Status Code response means that the request has been acknowledged for processing, however, the processing has not been finished; truth be told, processing might not have begun at this point. The request may or may not in the end be followed up on, as it very well may be refused while processing … Read more

The 203 HTTP Status Code means that the request is non-authoritative information. The 203 HTTP Status Code was gotten and perceived, and that data sent back with regards to the response is from an outsider, rather than the first server. The 203 HTTP Status Code is essentially indistinguishable in significance to a 200 OK Status … Read more

The 206 HTTP status code means that the request is partial content that indicates the server is providing only a piece of the requested resource as a result of a range header supplied by the client. There are two outcomes. If the range contains a single value, the Content-Type field will contain the type of … Read more

The 205 HTTP Status Code means that the request is reset content that indicates to the client that the document view should be reset. For example, you can use this status code to clear the contents of a form, reset the canvas state, or refresh the UI. To use the 205 HTTP Status Code in … Read more

The 409 HTTP Status Code means that the request is in conflict. The 409 HTTP Status Code indicates that the request could not be processed due to a conflict in the request, such as the requested resource not being in the expected state, or the processing of the request causing a conflict within the resource. … Read more

The 429 HTTP Status Code indicates that the request was too many requests. This means that the user sent too many requests in a short period of time (“rate limiting”). The response representations include information about the condition as well as a Retry-After header indicating how long to wait before making another request. There is … Read more

The 599 HTTP Status Code which means that the request is a network connection timeout error indicates that It appears that the server and a device are not communicating properly. A timeout error occurs when the server takes an excessively long time to respond to a data request. Timeout errors are designed to prevent a … Read more

The 506 HTTP Status Code means variant also negotiates. The 506 HTTP Status Code may be used in conjunction with Transparent Content Negotiation. When a server supports numerous variants of a resource, this protocol enables a client to retrieve the best variant. The Variant Also Negotiates status code indicates an internal server configuration problem in … Read more

The 504 HTTP Status Code means that the request is a gateway timeout. The 504 HTTP Status Code indicates that the server, acting as a gateway or proxy, did not receive a response from the upstream server in time to complete the request. The difference between the 504 HTTP Status Code and the 500 HTTP … Read more

The 503 HTTP Status Code means that the request is service unavailable. The 503 HTTP Status Code server error response code indicates that the server is not yet prepared to handle the request. A server that is down for maintenance or that is overloaded is a common cause. This response should only be used for … Read more

The 501 HTTP Status Code means that it is not implemented. The server error response code in the 501 HTTP Status Code indicates that the server lacks the capabilities necessary to fulfill the request. The 501 HTTP Status Code may also transmit a Retry-After header, informing the requester when to ask to see whether the … Read more

The 502 HTTP Status Code means that the Bad Gateway error appears. In the 502 HTTP Status Code,  one server on the internet received an invalid response from another server, such as when a proxy server is in use. Other times, in the 502 HTTP Status Code, a query or request will take too long, … Read more

The 499 HTTP Status Code means client closed request. The 499 HTTP Status Code is a non-standard status code developed by NGINX to indicate when a client disconnects while NGINX is executing a request. The difference between the 499 HTTP Status Code and the 200 HTTP Status Codes is that the 200 HTTP Status Code … Read more

The 498 HTTP Status Code means an invalid token. The 498 HTTP Status Code is unofficial use by Esri. It is returned by ArcGIS for the server. A code of 498 indicates an expired or otherwise invalid token. The difference between the 499 HTTP Status Code and the 400 HTTP Status Codes is that the … Read more

The 430 HTTP Status Code means that the request header fields are too large and used by Shopify. The 430 HTTP Status Code indicates that the server is unwilling to accept the request due to its extremely large header fields. After minimizing the size of the request header fields, the request may be resubmitted. Responses … Read more

The 450 HTTP Status Code means that the request is blocked by windows parental control. The 450 HTTP Status Code is an unofficial status code. Any command that requires the server to access a local file may result in the 450 HTTP Status Code being sent. Because the error is considered temporary, it is a … Read more

The 431 HTTP Status Code means the request header field is too large indicates the server refuses to process the request due to the request’s header fields being too large. The request may be resubmitted after the request header fields are reduced in size. It can be used when the total number of request header … Read more

The 408 HTTP Status Code means that the server requests timeout. In the 408 HTTP Status Code, the server didn’t get a total request from the client inside the server’s designated break time frame. It is sent on an inactive connection by certain servers, even with practically no past request by the client. A server … Read more

The 407 HTTP Status Code means that proxy authentication is required. In the 407 HTTP Status Code, the request has not been applied and it needs legitimate validation certifications for an intermediary server that is between the program and the server that can get to the requested resource. This 407 HTTP Status Code is sent … Read more

The 406 HTTP Status Code means that it is not acceptable. In the 406 HTTP Status Code, the server can’t deliver a response matching the rundown of adequate values characterized in the request proactive content negotiation headers, and the server is reluctant to supply a default presentation. The 406 HTTP Status Code is seldom utilized. … Read more

The 401 HTTP Status Code means that the request is unauthorized which indicates that the client request was not completed because the client did not provide valid authentication credentials for the requested resource. This Status Code is accompanied by an HTTP WWW-Authenticate response header that specifies how the client can re-request the resource after prompting … Read more

The 308 HTTP Status Code means that the request is a permanent redirect. The 308 HTTP Status Code indicates that the target resource has a new permanent URI (Uniform Resource Identification) and that any future references to it should use one of the enclosed URIs. Clients with link editing capabilities ought to automatically re-link references … Read more

The 307 HTTP Status Code means that the request is a temporary redirect. The 307 HTTP Status Code server sends this response to direct the client to retrieve the requested resource at another URI using the same method as in the previous request. The semantics are the same as for the 302 Found HTTP response … Read more

The <progress> HTML Tag illustrates a task’s progress. The <progress> HTML Tag may be used in combination with JavaScript to display the current status of a job or process. The <meter> HTML Tag should not be confused with the <progress> HTML Tag (which represents a gauge). The <progress> HTML Tag is part of Formatting Tags … Read more

The <font> HTML Tag is essential for creating an appealing and readable web page. The font tag is used to modify the text’s color, size, and style. To make all the text the same size, color, and face, you use the base font tag. Due to the fact that the <font> HTML Tag is discontinued … Read more

The <th> HTML Tag defines as a header cell that contains information about the HTML table. Typically, the browsers have rendered the text inside the <th> HTML Tag as bold, centre-aligned text. Additionally, this tag is frequently referred to as the <th> element. The <th> HTML Tag should be contained within a <tr> HTML Tag, … Read more