A single broken link or an unnecessary redirect chain can quietly cost you crawl budget, link equity, and rankings. Our free HTTP Status Code Checker lets you check up to 20 URLs at once, follow their full redirect chain, and instantly see which ones are healthy, redirected, or broken.
Paste your URLs below — homepage, category pages, old blog posts, backlink targets, or a competitor’s site — and get a clear, color-coded status report in seconds.
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What Is an HTTP Status Code?
An HTTP status code is a three-digit response a web server sends back every time a browser, crawler, or tool requests a page. It tells the requester exactly what happened — whether the page loaded successfully, moved somewhere else, or failed to load at all.
For SEO, status codes matter because search engine crawlers rely on them to decide whether to index a page, pass link equity through a redirect, or drop a broken URL from their index.
HTTP Status Code Reference
| Code Range | Meaning | SEO Impact |
|---|---|---|
| 200 OK | Page loaded successfully | Healthy — safe to index and link to |
| 301 Moved Permanently | Page has permanently moved to a new URL | Passes most link equity to the new URL |
| 302 Found | Page has temporarily moved | Search engines may keep indexing the original URL |
| 404 Not Found | Page doesn’t exist at this URL | Wastes crawl budget and breaks user trust |
| 410 Gone | Page was intentionally and permanently removed | Clearer signal to de-index faster than a 404 |
| 500 Internal Server Error | Server failed to process the request | Can cause temporary de-indexing if persistent |
| 503 Service Unavailable | Server is temporarily down (e.g. maintenance) | Generally safe short-term if used correctly |
Why Check HTTP Status Codes in Bulk?
Checking one URL at a time in a browser tells you the final destination, but not the full story. A single link can quietly pass through two or three redirects before reaching its final page — and each extra hop adds load time and dilutes link equity.
Checking URLs in bulk helps you:
- Audit an entire XML sitemap or internal linking structure at once
- Verify a website migration or domain change didn’t leave broken redirects
- Confirm backlink targets are still live before an outreach campaign
- Catch redirect chains and loops that silently waste crawl budget
- Spot mixed signals — like a 302 used where a 301 should be
301 vs 302: Why the Difference Matters
A 301 redirect tells search engines the move is permanent, so they consolidate ranking signals onto the new URL. A 302 signals a temporary move, so search engines are more likely to keep the original URL indexed and treat the destination as secondary.
Using a 302 for a redirect that’s actually permanent — a very common technical SEO mistake — can mean your new URL never fully inherits the old one’s ranking strength. This tool flags whether each redirect it detects is Permanent or Temporary so you can catch this mismatch quickly.
How Redirect Chains Hurt SEO
A redirect chain happens when URL A redirects to URL B, which redirects to URL C, and so on. Each extra hop:
- Adds measurable page load delay for users
- Increases the chance a crawler gives up before reaching the final page
- Can dilute the amount of link equity that reaches the destination
As a rule of thumb, a single redirect (A → B) is fine. Chains of three or more hops are worth fixing by pointing the original URL directly at the final destination.
Who Should Use This Tool?
This tool is built for:
- SEO professionals auditing internal links, sitemaps, or a client’s redirect map after a migration
- Content teams verifying that internal links in a new article all resolve to live, canonical pages
- Website owners checking that old URLs redirect correctly after a redesign or domain change
- Marketers confirming backlink or partnership URLs are live before sending traffic to them
- Developers quickly spot-checking server responses during deployment
Frequently Asked Questions
What does this HTTP status code checker actually do?
It sends a request to each URL you paste in, follows any redirects it encounters, and reports the status code at every hop along with the final destination URL and response time.
How many URLs can I check at once?
Up to 20 URLs per check. For larger sitemaps, split them into batches of 20.
What’s the difference between a 301 and a 302 redirect?
A 301 signals a permanent move and passes most ranking signals to the new URL. A 302 signals a temporary move, and search engines are more likely to keep the original URL indexed instead.
Why does a URL show more than one status code?
That means the URL redirects through one or more intermediate pages before reaching its final destination. Each hop in that chain has its own status code, which this tool displays in sequence.
How many redirects are too many?
A single redirect is generally fine. Chains of three or more hops add unnecessary load time and can dilute link equity — it’s worth updating the original link to point straight at the final URL.
What does a status of “0” or “No Response” mean?
It means the server couldn’t be reached at all within the timeout window — due to the domain being down, DNS failing to resolve, an SSL certificate error, or the server blocking automated requests.
Is a 404 always bad for SEO?
Not necessarily. A 404 on a page that should no longer exist is normal and expected. It becomes a problem when it appears on a URL that’s still linked internally, submitted in your sitemap, or receiving backlinks.
Is this tool free to use?
Yes, the HTTP Status Code Checker is completely free with no signup required.
