Global DNS Propagation Tool – has a Government blocked a site?
DNS “Yellow Pages”
The DNS server acts as a “yellow pages” service, firstly it looks up the IP number, then it connects you to that number.
For example: BBC.co.uk = IP 220.127.116.11
Here’s the BBC DNS Records
Government DNS Blacklisting
If a Government wishes to stop you accessing a site it can stop the DNS lookup – to block you “finding” a site. It will return an error message “site not available”.
DNS – Global Propagation
Check here to see if the URL/ Website name is available in your country.