Professional network and web tools for developers, administrators, and IT professionals.
At Netlookup, our mission is to provide high-quality, reliable, and easy-to-use network and web tools that help professionals diagnose issues, optimize performance, and ensure security across their digital infrastructure.
We believe that powerful network tools should be accessible to everyone, from seasoned system administrators to web developers and IT enthusiasts. That's why we've created a comprehensive suite of over 40 tools that are completely free to use with no registration required.
Netlookup provides a comprehensive suite of tools across five main categories:
Our DNS tools help you analyze and troubleshoot DNS records and configurations, check propagation status, and ensure your domain's DNS health.
Our networking tools allow you to diagnose network issues, monitor performance, and troubleshoot connectivity problems.
Our email tools help you verify email configurations, test deliverability, and ensure your email infrastructure is properly set up.
Our HTTP tools allow you to analyze HTTP requests, headers, and responses, helping you optimize your web applications.
Our SSL tools help you check SSL certificates, verify security configurations, and ensure your websites are properly secured.
We are committed to providing tools that are:
Our tools are optimized for speed and accuracy, providing instant results when you need them most.
All tools run in your browser with no data stored on our servers, ensuring your information remains private.
Built by network engineers for professionals and enthusiasts alike, our tools meet the highest standards.
We design our tools to be intuitive and easy to use, regardless of your technical expertise.