HTTP Latency Checker - Measure Website Response Time Online
HTTP Latency Checker
Measure Round-Trip Response Time to Any Website
Ready to Measure
Enter a URL above to measure its HTTP response time.
Understanding HTTP Latency
Performance Baseline
Establish a baseline response time before and after a hosting change, CDN setup, or code optimization.
Browser-Friendly "Ping"
Browsers can't send ICMP pings — this measures HTTP round-trip time as a practical substitute.
Outage Diagnostics
A very high latency or timeout can indicate server overload or network issues before a full outage.
Server-Side Measurement
Timing is measured from our server, giving a consistent reference point independent of your own connection.
This Isn't a Replacement for Real User Monitoring
A single server-side measurement reflects latency from our server's location to the target, which may differ from what your actual visitors experience depending on their geography. Use this tool for quick spot-checks and relative comparisons, not as a substitute for real user monitoring or a multi-region uptime service.
Key Takeaways
- Millisecond Precision: Reports round-trip time with one decimal place of precision.
- Status Code Included: See the HTTP status returned alongside the timing measurement.
- SSRF-Protected: Measurements are only permitted against hosts that resolve to a public IP address.