Enter a URL — and instantly check redirects and the server response code: the full redirect chain (301/302), broken 404 pages, headers and response time.
heleum Server Response Code Checker is a free online tool that shows the HTTP status of any page: 200 (OK), 301/302 (redirect), 404 (not found), 500 (server error) and more. It follows the entire redirect chain, shows every step and the final code, plus key response headers and the response time.
An HTTP response code is the server's signal about what happened to a request. For SEO it is critical: search engines must get 200 on live pages, 301 on moved ones and 404 on deleted ones. Wrong codes (redirect chains, soft 404s, 302 instead of 301) quietly drain crawl budget and rankings.
Who it is for: SEO specialists, web developers and site owners — to verify redirects after a migration, find broken links and make sure HTTPS and canonical return the right codes.
Enter a domain or a full link to a page. You can skip the https:// prefix — we add it automatically.
The request goes to our service, which follows all redirects and returns response codes, headers and timing. Your own site is not loaded in the process.
See the final code and its colour (green — ok, amber — redirect, red — error), the full redirect chain and headers. You can copy the result with one click.
We show every redirect step — from the first URL to the final one, with a code at each hop. You can spot extra hops and wrong 302s where a 301 should be.
Colour coding for 2xx/3xx/4xx/5xx and the status text — it is instantly clear whether a page is live, moved or broken.
Server, Content-Type, Cache-Control, HSTS and other key headers, plus the response time — useful for diagnosing caching and performance.
The request is run by an isolated service, not your site. No extensions or installs — everything works right in your browser.
Redirects, broken pages and status codes directly affect indexing and rankings. We will do a free technical audit and show exactly what is holding your site back in search.
Paste the URL and click "Check". The service follows the whole redirect chain and shows every hop — from the first URL to the final one, with the code (301/302) at each step, so you can spot extra hops, loops or mistaken 302s.
Enter any public URL — the tool shows the HTTP code of the final page (200, 301, 404, 500, etc.), its colour and status text, plus the server headers and response time. All via a server-side request, with no load on your site.
301 is a permanent redirect: search engines pass weight to the new address and update the index. 302 is temporary: the old address stays in the index. Permanent moves almost always need a 301; mistaken 302s are a common SEO problem.
Every extra hop slows loading and wastes crawl budget, and some link "weight" can be lost. Ideally there is one direct 301 from the old URL straight to the final one.
The tool checks only publicly available addresses over http/https. Local and private addresses (localhost, 192.168.x.x, etc.) are blocked for security reasons.
Yes, free and with no sign-up. Enter a URL and click "Check". The check runs through our service, so it works even for sites that block browser-side checks.
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ReadChecking a server response code is basic diagnostics for any site. The HTTP status shows what happens with each page: whether it is served successfully, redirects or returns an error. Our tool makes a server-side request, follows all redirects and shows the full picture: the redirect chain, the final code, headers and response time.
Unlike browser checks, the request runs on our side — so the tool sees the raw codes and headers even where the browser has already followed a redirect invisibly for you.
Codes are grouped by their first digit. 2xx — success (200 OK). 3xx — redirect (301 permanent, 302 temporary, 304 — not modified). 4xx — client-side error (404 not found, 403 forbidden, 410 gone for good). 5xx — server error (500 internal, 502 bad gateway, 503 service unavailable). For SEO the most important are 200, 301 and 404.
After changing a site's structure, moving to HTTPS or switching domains, it is critical that old addresses return a 301 to the right new pages. Errors here are the most common cause of a traffic drop after a migration: redirect chains, loops, 302 instead of 301 or redirects to irrelevant pages.
Besides the code, it is useful to see headers: Content-Type (content type), Cache-Control and Cf-Cache-Status (caching), Server and X-Powered-By (stack), Strict-Transport-Security (HSTS), X-Frame-Options (clickjacking protection). They help diagnose caching, security and server configuration.
The tool checks only public http/https addresses. Local and internal addresses are blocked, and we do not store the page body — only the response codes and headers. The check is run by our service, so your site gets no extra load.