HTTP Status Code Checker

An HTTP status code checker requests a resource and reports the response class returned by the server. Status codes describe request outcomes: successful responses, redirects, client errors and server errors all have different operational and SEO implications.

A page can look fine in a browser while automated systems receive a different status, especially behind CDNs, security products or soft-error templates. Checking the real response helps distinguish content problems from transport problems.

1. 1Enter a complete HTTP or HTTPS URL.
2. 2Run the request and review both the first and final response when redirects occur.
3. 3Compare the status with what the page is supposed to do.
4. 4Investigate unexpected 4xx, 5xx or redirect responses at the application or infrastructure layer.

• 2xx indicates the request was handled successfully.
• 3xx indicates redirection or related resource movement.
• 4xx indicates the request cannot be fulfilled as sent, such as 404 Not Found.
• 5xx indicates a server-side failure.

• Custom error page returning 200 instead of 404.
• Deleted URL returning 302 to the homepage.
• Intermittent 503 responses during deployment.
• Security layer returning 403 only to crawlers.

• Return meaningful status codes that match the content state.
• Use 404 or 410 for genuinely unavailable content when no replacement exists.
• Use redirects only when there is a real replacement or intentional temporary destination.

• Monitor important templates and endpoints automatically.
• Check both canonical and legacy URLs after releases.
• Investigate recurring 5xx errors through server logs rather than masking them with redirects.

One request is a snapshot. Intermittent outages, rate limits and geo-specific behavior can require repeated monitoring from multiple locations.