IAB Tech Lab says Apple can remotely block advertisers with no appeal process, but some claims lack public evidence

IAB Tech Lab advocates moving ad auctions and identity resolution to publisher-controlled edge servers, but a PPC Land fact-check found that its claims about Apple’s ability to block access remotely go beyond the public evidence. Rowena Lam published the article on October 13, 2026. Available records support that Safari blocks some ad-tech domains on iPhone and iPad; dynamic list updates have not been published. There is insufficient evidence to determine whether Macs are affected, and no public records show that Apple gave the relevant vendors advance notice or provided a formal appeal channel.