Server Headers Examination - Analyze the HTTP Headers of a Website
Our HTTP header examination tool allows you to input any domain name or URL to inspect its HTTP response headers. These headers provide crucial information, including the security policies in place for the website and the total caching duration.
The information contained within the HTTP headers is vital for network administrators and developers, as it aids in assessing the performance and security of a website.
How to Utilize Our HTTP Header Examination Tool
Follow these simple steps to use our server header examination tool to check the HTTP headers of any domain:
Enter or paste the domain name you wish to analyze.
Click the blue button labeled “Check HTTP Headers.”
Wait a few moments for the process to complete, then scroll down to view all the details.
Our header examination tool is user-friendly. There are no complicated procedures to follow, and you won’t need to input any intricate lines of code. Just specify the domain name, and our tool will take care of the rest.
Overview of Common HTTP Headers and Their Interpretations
When you examine the HTTP headers of a URL, you may encounter the following values along with their meanings:
Accept: Indicates the types of content the client is capable of processing.
Accept-Charset: Specifies the character encoding methods that the client can understand.
Accept-Encoding: Details the content encoding methods that the client can process.
Authorization: Contains credentials and information for authentication.
Cache-Control: Defines the server's caching strategy for managing client requests and responses.
Connection: Indicates whether the connection between the server and client remains open after a transaction.
Content-Encoding: Describes the encoding transformations applied to the body (e.g., gzip).
Content-Language: Specifies the natural language of the content.
Content-Length: Displays the size of the request/response in bytes.
Cookie: Sends cookies stored on the client to the server.
Date: Shows the date and time of the message (request/response).
ETag: A unique identifier for a version of a resource used for cache validation.
Expect: Describes the expectations the server must fulfill to process the request.
Host: Specifies the domain name of the server (used in virtual hosting).
If-Modified-Since: Requests content only if it has been modified after a specified date.
If-None-Match: Requests content only if the ETag does not match the cached version.
Origin: Identifies the origin of a cross-origin request (CORS).
Referer: Provides the URL of the referring resource.
Server: Contains information about the server software handling the request.
Set-Cookie: Instructs the client to store a cookie.
Transfer-Encoding: Specifies the encoding method used to safely transfer the payload.
User-Agent: Contains information about the client software making the request.
WWW-Authenticate: Indicates the authentication methods required by the server.
Frequently Asked Questions
Why is it important to check the HTTP headers of a URL?
Checking the HTTP headers of a URL is essential to ensure it responds appropriately to client requests. The headers provide valuable insights into how the URL responds to incoming requests and the types of requests it is designed to handle.
What does HTTP/1.1 301 Moved Permanently signify?
This status indicates that the URL has been permanently relocated to a new address. When using our header examination tool, it will first display the error, informing you that the URL has been moved, and subsequently show you the headers of the new URL.
What should I do if I don’t receive any results for the entered URL?
If you do not see any results for the entered URL, double-check the address to ensure it is correct. If the headers are still not displayed, try again later to eliminate any temporary issues with the tool.
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Recently changed DNS info, do a lookup and check if DNS and nameservers have propagated.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/whodat1.com\" \/>\n<meta property=\"og:image\" content=\"https:\/\/whodat1.com\/images\/logo.png\" \/>\n<meta property=\"og:site_name\" content=\"WhoDat1\" \/>\n<meta property='og:type' content='website' \/>","footer":"<!-- Metratics -->\n<script>\n var _paq = window._paq = window._paq || [];\n \/* tracker methods like \"setCustomDimension\" should be called before \"trackPageView\" *\/\n _paq.push(['trackPageView']);\n _paq.push(['enableLinkTracking']);\n (function() {\n var u=\"\/\/ws.metratics.com\/\";\n _paq.push(['setTrackerUrl', u+'matomo.php']);\n _paq.push(['setSiteId', '4']);\n var d=document, g=d.createElement('script'), s=d.getElementsByTagName('script')[0];\n g.async=true; g.src=u+'matomo.js'; s.parentNode.insertBefore(g,s);\n })();\n<\/script>\n<!-- End Metratics Code -->\n\n<!-- Google tag (gtag.js) -->\n<script async src=\"https:\/\/www.googletagmanager.com\/gtag\/js?id=G-8R7G86WB8F\"><\/script>\n<script>\n window.dataLayer = window.dataLayer || [];\n function gtag(){dataLayer.push(arguments);}\n gtag('js', new Date());\n\n gtag('config', 'G-8R7G86WB8F');\n<\/script>\n\n<script async src=\"https:\/\/fundingchoicesmessages.google.com\/i\/pub-9233126337026241?ers=1\" nonce=\"MaGSS3hyI4nTxqSufLzSrQ\"><\/script><script nonce=\"MaGSS3hyI4nTxqSufLzSrQ\">(function() {function signalGooglefcPresent() {if (!window.frames['googlefcPresent']) {if (document.body) {const iframe = document.createElement('iframe'); iframe.style = 'width: 0; height: 0; border: none; z-index: -1000; left: -1000px; top: -1000px;'; iframe.style.display = 'none'; iframe.name = 'googlefcPresent'; document.body.appendChild(iframe);} else {setTimeout(signalGooglefcPresent, 0);}}}signalGooglefcPresent();})();<\/script>\n\n<div class=\"footerdiv\"><p>Copyright 2023 - WhoDat1.com<\/p><\/div>\n"},"cookie":{"enable":true,"text":"<p>By using this website you agree to our <a href=\"#\" target=\"_blank\">Cookie Policy<\/a><\/p>"},"font_family":"Poppins","text":{"above_map":"<h5>DNS Propagation Map by WhoDat1.com<\/h5><p><br><\/p><p>Have you recently made changes in your DNS records, switched web host, or started a new website? WhoDat1.com offers free DNS propagation check service to check Domain Name System records against a selected list of DNS servers in multiple regions worldwide. DNS propagation inquiries are important so that visitors are able to find web services, mail services, and more. The <span style=\"color: rgb(230, 0, 0);\">RED X<\/span> means the query has NOT been resolved, the <span style=\"color: rgb(0, 138, 0);\">GREEN Check Mark<\/span> the query has been resolved.<\/p>","below_map":"<p><span style=\"color: rgb(55, 65, 81);\">Our free online DNS Propagation Checker tool allows you to verify DNS propagation worldwide. Easily check DNS data for any hostname or domain from DNS servers across the globe.<\/span><\/p><p><span style=\"color: rgb(55, 65, 81);\">Our DNS Propagation Checker tool simplifies global DNS checks by offering a comprehensive list of over 100 global DNS servers. You can customize the DNS server for certain tools and perform DNS checks using different servers.<\/span><\/p><p><span style=\"color: rgb(55, 65, 81);\">To enhance understanding, our tool collects, parses, and displays DNS propagation results on a map. A green tick indicates that the requested DNS record is available on the DNS server, while a cross indicates its unavailability. The green tick also signifies that the DNS record matches the expected value set by the user, whereas a cross indicates a mismatch. 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This process can take up to 48 hours to complete worldwide. Use our <\/span><a href=\"https:\/\/whodat1.com\/\" target=\"_blank\" style=\"color: rgb(55, 65, 81);\">DNS Propagation Checker<\/a><span style=\"color: rgb(55, 65, 81);\"> to monitor and track the progress of your DNS changes.<\/span><\/p><p><br><\/p><h5><br><\/h5><p><br><\/p>","footer":"<p class=\"ql-align-center\"><br><\/p>"},"find_btn":{"text":"Find","color":"#F3DF00","text_color":"#000000"},"whois_btn":{"text":"Lookup","color":"#5CC9FF","text_color":"#000000"},"default_dns":"A","enable_logs":true,"show_dark_mode":true,"enable_ad_block_detector":false,"ad_block_detector_filename":"adocean.js","map_fail_reloader":false,"timeout":5}