I’m getting an invalid certificate error (NET::ERR_CERT_INVALID) on multiple browsers, devices, and locations and I cannot figure out for the life of me why. I’m using Netlify’s hosting and free domain, and haven’t touched any of the site or security settings. And checking the HTTPS status codes results in 200 (OK). You can also see my headers there. Domain is https://competent-keller-2bfca5.netlify.app/
Everything has worked fine until it didn’t. I tried on Chrome, Safari (no my default browser so no extensions or cache, etc) on my home network. My phone on my home network did work but I can’t do a hard refresh on the mobile browser. Now I’m on my workplace wifi, still getting the same error in Chrome and mobile browser, but not when using my mobile data. So it happens on multiple ISPs but not on mobile data.
After some time, some pages now work but others don’t - I think if I did I hard refresh they would stop working but I’m trying to keep access to the CMS
I’ve also checked all the forum posts and external resources I could and most were user error, unresolved, or using a custom domain.