the more reasonable assumption is that it uses a third party crawl service. but still, it doesn't matter, it's acting on behalf of a user, and you aren't entit

the more reasonable assumption is that it uses a third party crawl service. but still, it doesn't matter, it's acting on behalf of a user, and you aren't entitled to know what software your users run. One consequence of putting stuff on the public internet is that it's like public.