validator IP range

Hello,

I would like to whitelist the W3C validators.  From https://validator.w3.org/services I see that 52.22.66.203 and 2600:1f18:7d7a:2700::/56 are listed as source ranges, however, I also see some validator requests coming from 34.228.185.123 in my logs.  Are there any other IPs that I would see requests from?

Thanks,
Eric

Received on Monday, 20 October 2025 11:58:42 UTC