Quickly verify website availability and server response headers. Enter any URL to check for 200 OK, 301 Redirects, 404 Not Found, and other critical HTTP status codes.
Ever wondered why a page isn't loading or if a redirect is working correctly? Our HTTP Status Code Checker provides a transparent look at what happens behind the scenes when a browser requests a URL. Whether you're a developer debugging a new deployment or an SEO specialist auditing a site for broken links, knowing the exact server response is the first step to a healthy website.
Server headers and status codes are the language of the web. A "200 OK" is the green light every webmaster wants to see, but errors like "404 Not Found" or "500 Internal Server Error" can drive users away and hurt your search engine rankings. By using this tool, you can quickly identify redirect chains that might be slowing down your site or find hidden errors before they impact your traffic.
This tool is especially useful when paired with our Robots.txt Generator to ensure search bots can access your content without hitting unexpected roadblocks.
For those working on site structure, combining this tool with our URL Slug Generator ensures that your new pages are not only reachable but also optimized for readability and search performance.
A 301 redirect indicates that a page has moved permanently to a new location, passing nearly all ranking power to the new URL. A 302 redirect is temporary and does not pass SEO value in the same way.
Some websites use security firewalls (like Cloudflare) that block automated requests or "headless" browsers. While you can see the site in your browser, the server might reject the tool's request to protect against bots.
To fix a 404 error, you should either restore the deleted page, redirect the broken URL to a relevant existing page using a 301 redirect, or update any internal links that point to the missing URL.