Is any site using this? It requires a special certificate and signing your content (which admittedly Cloudflare will take care of for you) but even then it’s on

Is any site using this? It requires a special certificate and signing your content (which admittedly Cloudflare will take care of for you) but even then it’s only for Chrome and Firefox and Apple have said they won’t support it. Over a year after announcing it I’ve yet to find a single site that does this.