Compare the Top DNS Lookup Tools as of November 2025

What are DNS Lookup Tools?

DNS lookup tools, also known as DNS checkers, are tools for web administrators to monitor and troubleshoot internet issues. These tools help to identify domain name server records, such as an IP address that is associated with a given domain name. DNS lookup can also be used to perform a reverse lookup, which uses an IP address to find the corresponding website. Many DNS lookup tools are available online and offer both real-time and historical data for each request. These research-grade services provide detailed reports about the status of a particular domain or website and help facilitate the process of identifying potential problems with network connectivity. Compare and read user reviews of the best DNS Lookup tools currently available using the table below. This list is updated regularly.

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    KeyCDN

    KeyCDN

    Proinity

    KeyCDN is a high-performance content delivery network that has been built for the future. It only takes a few minutes to start delivering content to your users at a blazing fast speed. Each edge server is meticulously crafted with an advanced TCP stack, 100% SSD coverage, and much more. Every account, large or small, has access to all of our features, like HTTP/2, Brotli, TLS 1.3, and many more. Our network utilizes IP anycast and our latency-based routing technology for leading performance. Simply add a domain that you would like to supercharge. Optionally make advanced customizations or even use a custom subdomain. Effortlessly add to any CMS, framework, or custom application. Improve image performance by reducing the overall size and using the next-gen formats. Increase image speed by being distributed globally through our premium edge locations.
    Starting Price: $49 per year
  • 2
    Constellix
    Next-generation DNS traffic management and network monitoring. Automatically route users to the best cloud, server, or CDN every time. We have everything to optimize your network and cloud architecture. Multi CDN allows you to effectively double your coverage map, ensuring 100% uptime even during provider outages, as well as significant performance gains. Balance out a provider’s weaknesses with another vendor’s strengths - that way you can be the fastest and enjoy 100% uptime across the globe. ITO automatically steers traffic to the fastest resources in your network. Our latency load balancers will update your DNS records to point to the fastest responding instances updated every 30 seconds! GLB combines GeoDNS routing logic with load balancing techniques to manage traffic flow on a global scale. Whenever a user queries your GLB records, they will be answered by nameservers in their originating region and will receive a response specific to their locale.
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