HTTP Status Monitor

Ping any URL and instantly see its HTTP status code and response time.

What Is an HTTP Status Code Checker?

An HTTP status code checker sends a HEAD request to any URL and reports the server's response code, response time, and content type. These codes are standardized three-digit numbers that tell clients whether a request succeeded, failed, or requires further action. Understanding HTTP status codes is crucial for web developers, SEO specialists, and site administrators monitoring uptime and redirect chains.

Our free tool tests any URL instantly — perfect for verifying that your pages return 200 OK, checking redirect configurations (301/302), detecting broken links (404), or monitoring server errors (500/503).

Frequently Asked Questions

What does HTTP status code 200 mean?
HTTP 200 OK means the request was successful and the server returned the requested content. This is the standard response for successful page loads and API calls.
What is the difference between 301 and 302 redirects?
A 301 redirect is permanent — it tells search engines to transfer all ranking signals to the new URL. A 302 redirect is temporary, meaning the original URL may be used again in the future. For SEO, 301 is preferred for permanent URL changes.
What does a 403 Forbidden error mean?
HTTP 403 means the server understood your request but refuses to authorize it. This typically occurs when access is restricted by IP, authentication is required, or the server has security rules blocking the request.
What causes a 404 Not Found error?
A 404 error means the server cannot find the requested resource. Common causes include deleted pages, broken links, misspelled URLs, or incorrect routing configurations.
What does a 500 Internal Server Error mean?
HTTP 500 is a generic server-side error indicating something went wrong on the server. It is usually caused by coding errors, misconfigured server settings, or database connection failures.
What is a 503 Service Unavailable error?
HTTP 503 means the server is temporarily unable to handle requests, often due to maintenance, overload, or rate limiting. It usually includes a Retry-After header suggesting when to try again.
How is response time measured?
Response time measures the total round-trip time from sending the request to receiving the server's response headers. Lower times indicate faster servers. Under 200ms is excellent, 200-500ms is good, and over 1000ms may indicate issues.
Can I check any URL with this tool?
Yes, you can check any publicly accessible URL including websites, APIs, and CDN endpoints. The tool sends a HEAD request (no body download) for fast results. URLs must include the protocol (http:// or https://).
What does the Content-Type header tell me?
Content-Type indicates the media type of the response. Common values include text/html (web pages), application/json (APIs), image/png (images), and application/pdf (documents).
Why would a URL show status code 0?
A status code of 0 means the connection failed entirely — the server is unreachable. Causes include DNS resolution failure, firewall blocking, SSL certificate errors, or the server being completely offline.