SonicWall maintain their own content filter list for their products: https://www.sonicwall.com/support/knowledge-base/content-filter-service-cfs-configurations/

SonicWall maintain their own content filter list for their products: https://www.sonicwall.com/support/knowledge-base/content-filter-service-cfs-configurations/170503934230687/ https://www.sonicwall.com/support/knowledge-base/content-fil... I was suggesting it had been incorrectly classified previously by a single vendor, presumably in response to a report (or a court order) for a single page. There's no nuance to the filtering, so the whole site gets blocked. It happens regularly for Imgur: Someone posts CSAM, and the whole site gets added to Cleanfeed (the UK ISP level filter) for a couple of hours until the original image is removed.