Request a tool
Find a tool
DEVELOPER TOOLS · FREE ONLINE TOOL

Server Response Time Checker

Full timing breakdown: DNS, TCP, TLS and server processing in milliseconds"Feels slow" is not a measurement, and you cannot fix what you cannot measure. This checker turns that feeling into a number: enter a URL and it measures the full round-trip time to fetch the page, reported in milliseconds.

✓ Free to use✓ No sign-up✓ Ready in your browser
// SERVER RESPONSE TIME CHECKER · GET STARTED

Use Server Response Time Checker

Full timing breakdown: DNS, TCP, TLS and server processing in milliseconds

// SERVER RESPONSE TIME CHECKER · HOW IT WORKS

How to use the Server Response Time Checker

01

Enter URL

Enter the website URL you want to analyze (e.g. https://example.com).

02

Time each phase

Click "Break Down Response Time" and wait while each phase is timed.

03

Find the bottleneck

Review the phase bars; the slowest phase is where optimization pays off.

// SERVER RESPONSE TIME CHECKER · ABOUT THIS TOOL

About the Server Response Time Checker

A slow site is a symptom, not a diagnosis: it does not say whether DNS resolution, the TCP handshake, TLS negotiation, or the application itself is eating the milliseconds. This checker times each network phase separately, reporting honest millisecond numbers for DNS lookup, TCP connect, TLS handshake, and server processing, with the slowest phase highlighted.

Where it helps most

Before-and-after proof.

Caching proof

Enabled page caching and want to see the difference in hard numbers.

Host moves

Moved to a faster host or turned on a CDN and need the improvement quantified.

Slowdown diagnosis

Debugging a slowdown that started Tuesday and need to know whether it is really slower or just feels that way.

Optimization scoreboard

The checker becomes the scoreboard for each fix you ship, measured before and after every change.

Reading the number

Single measurements lie.

Run it several times

Networks fluctuate and caches warm up; look at the pattern rather than any one reading.

Rough scale

Under 200 milliseconds feels instant; 200 to 500 is ordinary; past a full second, something deserves investigation.

Usual suspects

Uncached dynamic pages, slow database queries, and distant hosting line up in order when the number is too high.

Server Response Time Checker: built for trust

Live round-trip measurements from an external server. Run before and after each optimization.

// SERVER RESPONSE TIME CHECKER · COMMON QUESTIONS

Server Response Time Checker FAQs

Under 200 milliseconds feels instant and is an excellent target. Between 200 and 500 milliseconds is ordinary for dynamic sites. Past one second, visitors start noticing the delay, and past two seconds it actively hurts engagement and conversions.
// SERVER RESPONSE TIME CHECKER · KEEP EXPLORING

Related tools

View all tools →
TTFB Checker

Every page load has a moment of silence between the request going out and the first byte coming back, and that silence has a name: time to first byte. This checker measures exactly that interval in milliseconds.

Open tool →HTTP Status Checker

Your browser hides the raw status code behind a nicely rendered page, but search engines and APIs act on it. Enter any URL to see exactly what the server says: the precise code, the full redirect chain, and the headers that matter.

Open tool →DNS Lookup

DNS is the phonebook of the internet, yet it is surprisingly hard to see what the rest of the world actually sees for your domain. Type in any domain and this lookup tool shows every published record in seconds, with no command line and no signup.

Open tool →
// SERVER RESPONSE TIME CHECKER · FROM THE BLOG

Learn more about Server Response Time Checker

View all articles →
HTTP Status Checker: Instantly Diagnose Any URL Response
tools-guide

HTTP Status Checker: Instantly Diagnose Any URL Response

Free HTTP status checker. Check any URL's status code, trace redirect chains hop by hop, and fix 404, 301 and 500 errors before they silently hurt your SEO.

Read article →
Hosting Provider Checker: Who Hosts Any Website
tools-guide

Hosting Provider Checker: Who Hosts Any Website

Free hosting provider checker. Reveal any website's hosting company accurately, server IP and reverse DNS from header and DNS fingerprints, in seconds.

Read article →