Free Online Website Response Time Checker (Measure TTFB)
Benchmark your web server speed and Time to First Byte (TTFB). Breaks down DNS resolution, TLS connection latency, and server processing time to help identify bottlenecks.
Executing performance benchmarking requests...
Sequential Multi-Probe Benchmark
How to Use This Tool – Website Response Time Checker
Enter Website Address
Input any public HTTP or HTTPS web URL to benchmark.
Measure Multi-Phase Latency
Calculates DNS lookup, TCP handshake, TLS negotiation, TTFB, and total response time.
Analyze Performance Score
Get a clear latency rating and actionable insights to optimize your server speed.
Key Features & Capabilities – Website Response Time Checker
Time to First Byte (TTFB) Measurement
Isolates the time your server takes to process the request and begin streaming data.
Full Connection Waterfall
Breaks down DNS resolution, socket connect, TLS handshake, and content download.
HTTP/2 & HTTP/3 Performance
Reports the negotiated HTTP protocol version and compression efficiency.
Global Benchmarking Standards
Grades response speed against Google Core Web Vitals performance benchmarks.
Frequently Asked Questions
What is a good Time to First Byte (TTFB)?
Why does response time vary between tests?
How can I speed up my website response time?
Does this test affect my website bandwidth?
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