The current DNS is unnecessarily slow and suffers from inability to deploy new features. To remediate these problems, vendors of DNS software and also big public DNS providers are going to remove certain workarounds on February 1st, 2019.
This change affects only sites which operate software which is not following published standards.
The day of the change has been named “DNS Flag Day”, and providers and vendors have issued a reminder for domain owners and DNS resolver operators to check if they are affected.
On 1 February, major DNS resolver vendors will release updates that implement stricter EDNS handling, with all DNS servers that do not respond to EDNS queries being treated as dead.
CLICK LINK BELOW TO SEE IF YOUR SITE WILL STILL WORK: