Cloudflare has enabled ML-DSA-44 validation for its DNS resolver 1.1.1.1. This is intended to protect DNS responses from quantum attacks.
MSN бағдарламасында орналастырылған

I finally checked my backup DNS, and it explained months of random slowdowns

I always treated secondary DNS as a pretty inconsequential setting. You either leave it alone entirely or fill it once and then forget about it for the rest of time. You pick a primary server, pick a ...