HTTP Status Checker

Check HTTP status codes, response times, and redirect behavior for any URL. Includes a comprehensive status code reference. Browser CORS limitations apply.

Localhost & Pre-Deployment Ready — No Live URL Required. Check HTTP status codes, response times, and redirect behavior directly from your browser — no external proxy or server needed.

Your data stays in your browser. The tool attempts to fetch the URL from your browser. Due to CORS restrictions, many sites block cross-origin requests. When blocked, the tool clearly indicates the limitation.

Enter a full URL including https://

HTTP method for the request
Awaiting input…
—
Status: No response
Response Time: — ms
Enter a URL and click Check Status to analyze.
Browser privacy note: Because DevPouch runs entirely in your browser without proxying your requests through an external server, endpoints must permit cross-origin requests (CORS) or return readable headers. For local APIs and CORS-enabled endpoints, inspection is instant and private.

How to check HTTP status

  1. Enter a URL. Paste the full URL (including https://) you want to check.
  2. Click Check Status. The tool attempts to fetch the URL and shows status code, response time, and headers.
  3. Review results. See status category, redirect info, response headers, and more.
  4. Copy or download. Use Copy to copy results as JSON or Download to save as a file.

Note: Due to browser CORS restrictions, many websites will block the fetch request. The tool will clearly explain when this happens. The status code reference below works offline.

HTTP Status Code Reference & SEO Impact

2xx (Success)

  • 200 OK — signals clean indexability to search engines; the page is eligible to appear in SERPs.
  • 201 Created — resource successfully created; typically returned after a POST/PUT.

3xx (Redirections)

  • 301 Permanent Redirect — passes full link equity/PageRank to the new URL; use for permanent moves.
  • 302 Found — temporary redirect; keeps the original URL in SERPs. Do not use for permanent moves.
  • Redirect chains (multiple hops) dilute crawl budget and slow page loading; avoid them.
  • Redirect loops prevent crawling entirely and can cause pages to drop from the index.

4xx (Client Errors)

  • 404 Not Found — the resource is missing; search engines may eventually de-index it.
  • 410 Gone — explicitly indicates permanent removal, expediting de-indexing compared to 404.

5xx (Server Errors)

  • 500 / 503 — repeated server failures signal instability and reduce crawl budget; bots may crawl less frequently.
CORS guidance: Because DevPouch runs entirely in your browser without proxying your requests through an external server, endpoints must permit cross-origin requests (CORS) or return readable headers. For local APIs and CORS-enabled endpoints, inspection is instant and private.

Frequently Asked Questions

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Use Cases

An HTTP Status Checker is an essential utility for developers, QA engineers, DevOps teams, and SEO specialists who need to verify that web servers and APIs return the correct response codes. Developers run checks after every deployment to confirm a new route returns 200 OK instead of 500 Internal Server Error. QA teams validate redirect chains so legacy URLs forward with 301 Moved Permanently rather than leaving visitors on dead links. Security engineers confirm authentication endpoints consistently return 401 Unauthorized or 403 Forbidden for unauthenticated requests. DevOps teams monitor health check endpoints to catch cascading failures before they reach production users. SEO specialists audit site health by surfacing soft 404s, status code errors, and crawl issues that waste search engine crawl budget. Support teams reproduce customer complaints by capturing the exact status code behind a broken page. Content teams verify custom 404 pages render properly instead of exposing raw stack traces. Webhook integrations stay reliable when teams poll third-party endpoints and log status codes over time to detect intermittent outages. Load balancer and CDN configurations benefit from spot checks across edge nodes to confirm consistent 200 responses globally.

Because status codes form the contract between client and server, a single wrong code can break mobile apps, block crawlers, or silence webhook deliveries. Regular checks turn opaque failures into actionable signals, reducing mean time to resolution and keeping digital experiences reliable.

How-To

Paste the complete URL of the endpoint you want to test into the input field, including the https:// or http:// scheme. Select the HTTP method that fits your goal—GET for standard page checks, HEAD for lightweight header verification, or POST when validating API endpoints with a request body. Click Check Status, send the request, and wait for the server response to appear.

  • Read the returned status code: 2xx means success, 3xx indicates redirection, 4xx points to client errors, and 5xx reveals server errors.
  • Inspect response headers such as Content-Type, Location, and Cache-Control to confirm redirects and caching rules behave as expected.
  • Compare results across local, staging, and production environments to catch configuration drift before it affects users.
  • Copy or export the result for incident reports, pull request comments, or QA documentation.
  • Schedule recurring checks for critical endpoints so intermittent failures surface early, before customers are affected.
  • Document recurring status code patterns in a runbook so the team knows how to respond to 5xx spikes versus 4xx spikes.