Hi guys, Now that Google pretty much removed the link: operator and the standard brute force approach to discover PBNs is gone. What are your efficient ways to find hidden networks that: Disallow everything but Googlebot & Bingbot through robots.txt Only host 2 sites per IP and make sure they're in different C classes. I'm very interested in hearing your thoughts about this. Given that tools like ahrefs and Majestic wouldn't be useful as long as the owner of the PBN is not greedy and interlink them that much. Thanks!