AlsoAsked
4/5
Strong public usage proof from registered-user, search, and result counters plus recognizable customer logos.
The homepage showed 115,262 registered users, 10,266,677 user searches, 312,207,549 results, and logos including Tripadvisor, Lego, Deloitte, Gymshark, Nerdwallet, Oracle, Indeed, Ikea, Riverside, and KPMG.
Monitor Backlinks
2/5
Official indexed product copy reports adoption above 100K users, but this is a historical/marketing claim rather than a current audited count.
The official homepage is indexed with the statement that the former standalone tool was established in 2012 and gained over 100K users: https://monitorbacklinks.com/