TechUtilityTools

Website Uptime Checker

Check whether any website is reachable right now from your network — and how fast it responds.

What's next
Configure
Monitor this automatically

Get alerts when uptime, latency, or DNS changes.

Open history
Save this check

Keep unlimited history across devices.

View trends
Track performance over time

See trends, regressions, and outage windows.

How it works

  1. 1
    Browser-side fetch

    We send an HTTPS request from your browser directly to the target host.

  2. 2
    TCP / TLS handshake timing

    If the server completes the handshake, the site is reachable from your network.

  3. 3
    Round-trip measured

    We report the time-to-response in milliseconds — useful for triaging slow sites.

Real use cases

  • — Confirm whether your site is down for everyone or just for you.
  • — Check a competitor's status before reporting a third-party outage.
  • — Verify deploys: hit the URL right after pushing to production.
  • — Triage incidents: pair with DNS Lookup and Server Status Checker.

Related tools

Server Status Checker

Check whether a server is reachable and how fast it responds.

Internet Speed Test

Measure download, upload, ping, and jitter against Cloudflare's edge.

DNS Lookup Tool

Resolve A, AAAA, MX, TXT, NS, and CNAME records via DNS-over-HTTPS.

Operational hub

Uptime monitoring workflow

Continue the operational chain — from a one-off check to continuous monitoring, troubleshooting workflows, and incident-grade reporting.

Runs entirely in your browser. Nothing is sent to our servers.