Website availability check
Estimate whether a browser request completes and how long it takes
Direct request: This sends an HTTPS HEAD request from your browser, not ICMP ping. The destination receives your IP address and browser request headers. Credentials and referrer data are omitted, and redirects are blocked. A result does not prove overall uptime.
Target + results
Enter an HTTPS website address or IP address. If you omit the scheme, the tool adds
https://. What this check does
Traditional ping sends ICMP echo packets. Browsers cannot do that, so this page sends one direct HTTPS HEAD request and measures how long the browser takes to complete or reject the fetch.
When this check helps
This browser check can show whether a request completes from your current browser context. It cannot replace ICMP ping or independent uptime monitoring.
- Checking browser access: see whether a request can complete from this page.
- Troubleshooting: capture a quick signal before using deeper network tools.
- Measuring one attempt: record elapsed time for one browser request, not network latency.
- No software installation: run checks directly from your browser.
Understanding results
- Target: the URL or IP address that was tested.
- Status: indicates whether the browser fetch completed.
- Elapsed request time: time from starting fetch until its promise completes or rejects. It includes browser, connection, TLS, server, and policy work.
- Timestamp: the UTC time when the test ran.
- Error details: the browser error; it may not identify the server's actual status.
Limitations
CORS, TLS, DNS, extensions, browser policy, target handling of HEAD requests, and redirect blocking can affect the result. A completed opaque response does not expose the HTTP status, while a failed fetch does not prove the target is offline.
Common Use Cases
- See whether one HTTPS request completes from this browser.
- Capture an elapsed-time signal before deeper diagnostics.
- Compare browser behavior across two known test endpoints.
- Reproduce a CORS, TLS, or browser-policy failure.