DNS check. Check the DNS server for free.

Confirm whether the DNS of your website is performing well from different cities and countries in the world. This is vitally important, because the DNS (Domain Name System) is one of the most important services on the Internet. Its main functions are to translate between domain names and IP addresses and to list the mail-exchange servers accepting e-mail for each domain. A frequently used analogy to explain DNS is that it serves as the "phone book" for the Internet by translating human-friendly computer host names into IP addresses. For instance, www.example.com translates to 208.77.188.166. To start to check the DNS of your website, fill in your URL.