Free DNS Lookup Tool

Monitor for DNS health around the clock.

Try Uptrends free for 30 days

What is DNS?

The DNS resolves your domain name to an IP address. It’s like a street sign pointing to your website, email, and proxy servers. Without it, your users can’t find you.

From A to TXT

Monitor your key DNS records such as A, AAAA, SOA, TXT, MX, and root server to know when someone tampers with your DNS, and stop a DNS poisoning in its tracks.

Test worldwide

Just because your DNS works properly on one server, it may not work from all. Our checkpoints catch regional problems before they can spread to the entire DNS network.

Check serial numbers

The SOA serial number is incremented when a DNS entry changes. Monitoring the serial number catches changes you may not notice if you’re only monitoring your A or AAAA records.

That’s a lot of info! Share it

Your DNS records are loaded with sharable information, so share it. Click the Share result button to get a link to your test result. Send the link out to your team or access the test later.

IPv4 and IPv6

The move to IPv6 is on. Nearly half of our 228 checkpoints support IPv6 natively. Check your A record or AAAA record; No matter which IP version you’re running, we’ve got your back.

Testimonial photo of customer
“We are able to act very quickly; our average time to respond to outages has gone down.”
Kyle Moschetto, Director of DevOps

Play around with the complete toolkit

Website Uptime Monitoring

Monitor from 228 worldwide locations and get alerts via email, SMS, and integrations such as Slack when something breaks.

Web Application Monitoring

With Web Application Monitoring, you can monitor website steps such as shopping carts, logins, search, and forms.

Web Performance Monitoring

Improve your website speed with rich, easy-to-use waterfall reports, monitor in Chrome, Firefox, and Internet Explorer.

API Monitoring

APIs fuel all kinds of tools and applications. Build multi-step API calls to test your APIs for functionality, performance, and uptime.

Real User Monitoring

How do your actual users see your site? RUM gives you load times per browser, device, and operating system displayed in shiny world maps.

Server Monitoring

Make sure to check the backend too. Check your web, DNS, and mail servers worldwide from outside your firewall.

Ready to engage?

Test the Uptrends monitoring platform (Uptrends Synthetics, RUM, and Infra) free for 30 days. Your full-featured trial expires automatically, and we don’t need your credit card.

Try Uptrends
By using the Uptrends website, you consent to the use of cookies in accordance with our Cookie Policy.