SpamHaus operates a publicly available index of domain name and IP violations, and maintains a list of abusive behavior originating from a large variety of gTLDs and TLDs.
How does SpamHaus calculate that?
The abusive behavior of domain TLDs is measured as the ratio of abusive domains that exist in a given TLD, to its total number of active domains.
In other words, it doesn’t reflect the total number of bad domains in a given TLD, but the percentage of its bad actors to the full number of domains encountered. This allows for proper scaling for smaller or larger TLDs.
For February 2018, SpamHaus crowned dot .Party as the #1 most abused TLD; it’s followed by dot .Click and dot .Men.
Here’s the full Top Ten list for February 2018:
For more information about the list and the methodology, visit SpamHaus.org.
