>Surely, there could a be a whitelist for major legitimate porn sites with an automated response that those sites are legitimate businesses not hosting illegal

>Surely, there could a be a whitelist for major legitimate porn sites with an automated response that those sites are legitimate businesses not hosting illegal material. Pornhub is currently in hot water over allegations that they have been negligent in keeping child porn off the site. I don't know whether or not those allegations have merit, but it is certainly the case that child porn crops up on mainstream sites from time to time. Here's one relevant article: https://www.bbc.co.uk/news/stories-51391981 https://www.bbc.co.uk/news/stories-51391981