RevenueGuardBot
The scanner sends the user agent Mozilla/5.0 (compatible; RevenueGuardBot/1.0; +https://tryrevenueguard.com/bot). If your robots.txt has a group for RevenueGuardBot, only that group is used. If it does not, the * group is used. A rule that disallows / in the group that applies stops the scan.
Each scan fetches robots.txt once, with this user agent only. It never sends a request that pretends to be Googlebot, Bingbot, or any other bot. It then makes one extra plain request for the homepage, without running the page's scripts, so it can see the text that arrives before JavaScript. That request follows the same robots.txt rules and the same delay between requests. It does not fetch llms.txt, and it does not test whether a firewall blocks other bots.
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This takes effect immediately. You do not need to prove ownership for the opt-out to be stored.