Instant & browser-based
Nothing to install. Open a tool, enter a domain or IP, get the answer in seconds.
16 free network tools
Free network & web tools every infra engineer keeps bookmarked
DNS, SSL, ping, whois, HTTP headers, TTFB and more - 16 browser-based tools, free to use on any domain. No sign-up, no rate-limited "demo" version. Built by the team behind the Uptimewolf monitoring product.
Free forever - no account needed
All 16 tools, one click away
Fast, reliable and easy to use. Pick a tool and run it against any domain, host or IP - right now.
- DNS Lookup Find A, AAAA, CNAME, MX, NS, TXT and SOA DNS records of a host. Open tool
- IP Lookup Get approximate geolocation and network details for any IP address. Open tool
- SSL Lookup Inspect any SSL certificate - issuer, validity dates and chain details. Open tool
- Whois Lookup Get registration, registrar and expiry details for any domain name. Open tool
- Ping Ping a website, server or port and measure round-trip response time. Open tool
- Website Text Extractor Pull all readable text out of a web page from its source code. Open tool
- TTFB Checker Measure the time to first byte of any website to gauge server speed. Open tool
- Website Page Size Checker Check the total page weight, including every resource, for performance analysis. Open tool
- Meta Tags Checker Get and verify the meta tags - title, description, Open Graph - of any page. Open tool
- Website Hosting Checker Find out which web host a given website is running on. Open tool
- HTTP Headers Lookup See every HTTP header a URL returns for a standard GET request. Open tool
- HTTP/2 Checker Check whether a website is served over the HTTP/2 protocol. Open tool
- Google Cache Checker Check whether a URL is currently cached by Google. Open tool
- URL Redirect Checker Trace 301 and 302 redirects for a URL - up to 10 hops deep. Open tool
- Reverse IP Lookup Take an IP address and find the domains and hosts associated with it. Open tool
- Brotli Checker Check whether a website is using Brotli compression. Open tool
Tools for a quick check - monitoring for peace of mind
These 16 tools are perfect for a one-off check: is this certificate valid, what does this header return, has this DNS change propagated. Run them as often as you like, free.
But a one-off check only tells you about right now. The Uptimewolf monitoring product runs these checks continuously - around the clock, from multiple locations - and alerts you the moment something breaks. Start a free 5-day trial
No sign-up. No catch.
The kind of utilities you reach for ten times a week - without a paywall in the way.
Genuinely free
No account, no trial timer, no "upgrade to see the full result". Run every tool as often as you need.
Built by monitoring people
The same team behind the Uptimewolf monitoring product - so the tools are accurate and kept working.
Free tools - common questions
Are the Uptimewolf tools free?
Yes. All 16 network and web tools are free to use, with no sign-up and no rate-limited demo version. They're a free add-on, separate from the Uptimewolf monitoring product.
Do I need an account to use the tools?
No. The tools run in your browser and require no account. You can run any of them against any domain or IP straight away.
What tools does Uptimewolf offer?
Uptimewolf offers 16 free tools: DNS Lookup, IP Lookup, SSL Lookup, Whois Lookup, Ping, Website Text Extractor, TTFB Checker, Website Page Size Checker, Meta Tags Checker, Website Hosting Checker, HTTP Headers Lookup, HTTP/2 Checker, Google Cache Checker, URL Redirect Checker, Reverse IP Lookup and Brotli Checker.
Are the tools the same as the monitoring product?
No. The tools are free one-off utilities for quick checks. The Uptimewolf monitoring product continuously watches your websites, servers, domains, DNS and game servers and alerts you when something breaks. The tools are a free add-on alongside it.
What is a DNS lookup tool used for?
A DNS lookup tool retrieves the DNS records of a domain - such as A, AAAA, CNAME, MX, NS, TXT and SOA records - so you can verify configuration, diagnose mail or routing issues, or confirm a change has propagated.
Like the tools? The monitoring runs them for you, 24/7.
5-day free trial. No credit card. Cancel anytime.