Check if any website is up or down right now. Get the HTTP status code and response time instantly.
When you enter a URL, our tool sends an HTTP request to the target server and measures two things: the HTTP status code returned by the server and the response time (latency) in milliseconds. The status code tells you whether the server handled the request successfully, while the response time shows how fast the server replied.
This is the same process your browser performs every time you visit a website. The difference is that our tool checks from an external server, so you can see whether the problem is on your end (local network, ISP, DNS cache) or if the site is actually down for everyone.
Every HTTP response includes a three-digit status code. Here are the most common ones:
| Code | Meaning | What It Means for You |
|---|---|---|
| 200 | OK | Everything is working. The site responded successfully. |
| 301 | Moved Permanently | The URL has been permanently redirected. Usually normal after a migration. |
| 302 | Found (Temporary Redirect) | Temporary redirect. The original URL should be used in the future. |
| 403 | Forbidden | The server refuses to serve this request. Check access permissions. |
| 404 | Not Found | The page does not exist at this URL. Check for typos. |
| 500 | Internal Server Error | Something broke on the server side. Contact the hosting provider. |
| 502 | Bad Gateway | The server got an invalid response from an upstream server. |
| 503 | Service Unavailable | The server is overloaded or under maintenance. Try again later. |
Response time directly affects user experience and search rankings. Google uses page speed as a ranking factor, and users expect pages to load fast. Here is a general guideline:
Common causes of slow response time include overloaded servers, unoptimized databases, lack of caching, and serving users from a distant geographic location without a CDN.
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