Thursday, May 5, 2016

DNS Propagation Checker

Scenario:
You've changed public DNS settings recently and are waiting for DNS propagation across country/world. How to check DNS propagation progress? I've found following service useful for checking DNS propagation after any public DNS changes or changes for Office 365 like:
  • MX/CNAME Autodiscover records for Exchange Online
  • SRV/CNAME Autodiscover DNS records for Skype for Business Online
Solution:
DNS Propagation Checker: https://www.whatsmydns.net
whatsmydns.net lets you instantly perform a DNS lookup to check a domain names current IP address and DNS record information against multiple name servers located in different parts of the world.
This allows you to check the current state of DNS propagation after having made changes to your domains records.