Why am I getting an “unusual traffic” warning on Safari?

I was just browsing for something pretty normal when suddenly I got a message saying, "Our systems have detected unusual traffic from your computer network. This page checks to see if it's really you sending the requests, and not a robot." I searched online and saw that many people think it might be due to Private Relay (which I don't have on and don't even understand), a VPN (I don't use one), or malware (I've run Malwarebytes and came up clean, plus I haven't visited any sketchy sites). Should I be worried about this, or is it just a glitch? I'm on a recently updated MacBook Air using Safari.