Go Daddy is blocking companies from harvesting its DNS records, the company has confirmed.
CTO Dave Koopman denied that Go Daddy has a “DNS Blackouts” policy, but confirmed that it has banned certain IP addresses from doing DNS queries for its customers’ domains. He wrote:
The rumor about “DNS Blackouts” was started by someone using Go Daddy servers to cache all Go Daddy DNS records on his personal servers for financial gain.
Back to our previous example of 100 queries a day. Instead of one person accessing 100 domain names, this individual was attempting to download tens of millions of Go Daddy DNS records – twice daily. While his behavior did not cause any system issues, we felt it best to revoke access to the offending IPs.
If Go Daddy finds unwanted activity in our network, Go Daddy takes actions to stop it.
That appears to be a reference to a blog post from DNSstuff.com founder R Scott Perry, who complained in early September about what he called a “Selective DNS Blackouts” policy.
Perry suggested that Go Daddy was trying to drum up interest in its Premium DNS service by providing poor DNS service to regular customers.
Blocking DNS queries from selected IP addresses draws to mind Go Daddy’s policy of banning DomainTools and other companies from harvesting Whois records in bulk.
In January, the company confirmed, that it was blocking commercial Whois aggregators including DomainTools. The ban appears to still be in affect for non-paying DomainTools users.
Like DomainTools, DNSstuff.com offers DNS monitoring and alerts for premium fees.