I have been using PiHole for some time, and everything works correctly on all my devices. I used to use Microsoft Edge as my web browser, and everything works correctly in that. However I have just tried using Safari as a browser instead, and the web blocking does not work in that. I have disabled…

I think I have managed to resolve the issue now. In my DNS address I had an IPV6 fe80 address as well as the address of my PiHole, I removed that, and I think that has resolved it.