HTTP Status Code Checker Tool Online

How the HTTP Status Code Checker Works

This tool sends an HTTP request to each URL and reports back the server's response. Here's the process:

1. Enter your URLs, paste up to 50 URLs, one per line. The tool adds https:// if no protocol is specified.
2. Concurrent checking, all URLs are checked simultaneously using HTTP HEAD requests. If a server blocks HEAD, the tool automatically retries with GET.
3. Collect response data, for each URL, it records the status code, status text, redirect location (if any), server header, content type, and response time.
4. Summary and filtering, results are displayed in a sortable table with a color-coded summary showing the breakdown of 2xx, 3xx, 4xx, and 5xx responses.

Why HTTP Status Codes Matter for SEO

Status codes are the language between your server and search engine crawlers. Getting them wrong can silently destroy your rankings:

• Crawl budget waste, every 404, redirect chain, and server error wastes crawl budget. If Googlebot spends its time hitting broken URLs, it has less time to discover and index your actual content.
• Link equity loss, backlinks pointing to 404 pages are dead weight. Those links carry ranking value that you're throwing away. A simple 301 redirect recovers that equity.
• Indexing signals, a 200 means "index this." A 301 means "index the new URL instead." A 404 means "remove this from the index." A 503 means "come back later." Using the wrong code sends the wrong signal.
• User experience, visitors hitting 404s or 500s leave. High bounce rates from error pages send negative engagement signals to search engines and directly hurt conversions.
• Site migrations, during domain moves or CMS changes, bulk-checking all your URLs is essential. One missed redirect can mean losing your highest-ranking page.

For a deeper dive into redirect behavior, use the Redirect Checker to trace the full redirect chain of any individual URL, or the Sitemap Checker to verify that your sitemap only contains 200-status URLs. To find all broken links on a specific page, the Broken Link Checker scans every anchor tag and reports 404s, 5xx errors, and timeouts. Use the Internal Link Analyzer to see which pages have broken inbound link paths across your site.

Common HTTP Status Codes Reference

A quick reference for the status codes you'll encounter most often:

• 200 OK, page loaded successfully. The ideal response for all indexable pages.
• 301 Moved Permanently, page permanently moved to a new URL. Passes full link equity. Use for permanent URL changes.
• 302 Found, temporary redirect. Does not fully transfer SEO value. Use only for genuinely temporary moves.
• 307 / 308, temporary / permanent redirect that preserves the HTTP method. Functionally similar to 302 / 301 for SEO.
• 403 Forbidden, server refuses access. Check file permissions and server configuration.
• 404 Not Found, page does not exist. Set up 301 redirects for pages with backlinks or traffic.
• 410 Gone, page permanently removed. Stronger deindex signal than 404.
• 500 Internal Server Error, generic server failure. Investigate server logs immediately.
• 502 Bad Gateway, upstream server returned an invalid response. Often a hosting or proxy issue.
• 503 Service Unavailable, server temporarily down. Use during maintenance with a Retry-After header.

To check whether your pages have correct meta tags after confirming they return 200, use the Meta Tag Checker or the Open Graph Checker.

HTTP Status Code Reference Table

A complete reference of the HTTP status codes you'll meet most often, with what each one means and its impact on SEO and crawling. Codes are defined by the IETF (RFC 9110 and related standards).