Website Status Checker
Check whether a website is reachable and how fast it responds.
What this tool does
This tool checks whether a website responds to an HTTP request and measures the response time. It reports the status code and keeps a short local history of recent checks. Use it to determine whether a site is down for everyone or if the issue might be local.
Inputs explained
- Website URL: The domain or URL you want to test.
How it works / Method
The tool sends an HTTP request from our server and records the status code and response time. Results are stored locally in your browser for recent history. The check does not load page assets or execute JavaScript, so it focuses on server reachability.
Response Time: s • Code:
Recent Checks
| URL | Status | Time | When |
|---|
Example
Input: URL: https://example.com. Expected output: Status UP with a 200 response code and a response time value. The recent checks table records the URL, status, and time for quick comparison.
Use cases
- Confirm whether an outage is widespread or local.
- Check response time during incident triage.
- Verify a deployment or DNS change did not break access.
- Monitor intermittent failures during troubleshooting.
- Log quick checks during maintenance windows.
Limitations & notes
- Checks run from a single server location and may differ from your region.
- Authentication or geo-blocking can alter results.
- Response time is not a full page load metric.
- History is stored locally in your browser, not on the server.
Accuracy & Disclaimer
Results reflect a single request from our server at query time. For continuous monitoring, use a dedicated multi-region uptime service.
Frequently Asked Questions
What does it mean when a site is "down"?
A site is considered down when the server does not respond, responds with an error status, or times out. This can be caused by server outages, DNS issues, network blocks, or application errors. A 5xx status indicates a server-side problem, while a timeout suggests the server could not be reached. This tool reports the response observed from our server so you can distinguish between local issues and broader outages.
What is the difference between 4xx and 5xx errors?
4xx errors indicate a client-side issue, such as a missing page (404) or unauthorized access (401). 5xx errors indicate a server-side failure, such as a misconfigured application or overloaded host. Both mean the request was not successfully completed, but the responsibility differs. This distinction helps prioritize troubleshooting, such as checking URLs for 4xx or inspecting server logs for 5xx. A 5xx spike often points to capacity or application errors.
Why does this tool show a different result than my browser?
Your browser may be using cached content, a different network route, or a region-specific endpoint. Some sites block certain regions or user agents, and CDNs can serve different responses based on location. This tool checks from our server environment, so the result reflects that vantage point. If results differ, test from multiple networks, clear browser cache, or confirm with monitoring services.
What is response time measuring?
Response time represents how long the request took from our server to receive a response. It includes network latency and server processing time for that request. It does not measure full page load time in a browser because it does not execute scripts or download all assets. Use it as a lightweight indicator of server responsiveness, not as a full performance metric.
Does this check from multiple locations?
No. This tool checks from a single server location, which provides a consistent reference but may not reflect global availability. If you need regional coverage, use multi-region uptime monitoring or CDN analytics. You can still use this tool to confirm whether the site responds at all and to identify obvious outages. For global checks, compare results from multiple regions. A VPN can provide an additional regional perspective.
How is the recent check history stored?
Recent checks are stored locally in your browser using local storage so you can compare outcomes over time. This history stays on your device and is not sent to the server. Clearing your browser data will remove the history. If you need persistent records or team visibility, use an external uptime monitoring system. The table typically shows the most recent checks only.
Sources & references
- RFC 9110: HTTP semantics - Defines HTTP status codes.
- RFC 9112: HTTP/1.1 - Response handling and status lines.
- RFC 9111: HTTP caching - Explains cache behavior that affects observations.
- IANA HTTP Status Code Registry - Authoritative list of HTTP status codes.