Enter any domain to instantly check whether a website is online or offline. Returns the HTTP status code and load time so you can quickly diagnose availability issues.
| Code | Meaning | Action Needed |
|---|---|---|
| 200 | OK — site is online and responding normally | None |
| 301 / 302 | Redirect — site redirects to another URL | Check redirect destination with the Redirect Checker |
| 403 | Forbidden — server refused the request | Check server permissions or IP blocking rules |
| 404 | Not Found — page does not exist | Fix broken URL or set up a redirect |
| 500 | Internal Server Error — server-side crash | Check server error logs immediately |
| 503 | Service Unavailable — server overloaded or in maintenance | Check server capacity; may be temporary |
| Connection timeout | Server did not respond within the time limit | Check hosting status, firewall, or server load |
Search engines discover and re-crawl pages continuously. If Googlebot encounters repeated 5xx errors or connection timeouts when visiting your site, it may reduce crawl frequency, which delays indexing of new content. Extended outages can also signal poor reliability to Google, potentially affecting rankings. Monitoring uptime is a basic but critical part of technical SEO hygiene.