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>What adblocking software do now, is they do a dns lookup for every domain, and consider all domains in the result as the same. So if either of previous domains

>What adblocking software do now, is they do a dns lookup for every domain, and consider all domains in the result as the same. So if either of previous domains are in the block list, both domains are considered blocked. So this means that the ad blocker will query "definitely-not-an-ad-subdomain.dastx.me" and realize that it actually points to "terribleads.adgiant.com", right?

riquito 6y ago
> So this means that the ad blocker will query "definitely-not-an-ad-subdomain.dastx.me" and realize that it actually points to "terribleads.adgiant.com", right? Right
yjftsjthsd-h 6y ago
> So this means that the ad blocker will query "definitely-not-an-ad-subdomain.dastx.me" and realize that it actually points to "terribleads.adgiant.com", right? Yeah, uBlock Origin recently added a new permission request just to allow that.
- MattSteelblade 6y ago
  From my understanding, it only works in Firefox and not Chrome though as an FYI.
  - dastx 6y ago
    Correct. Chrome doesn't have such mechanism and if I'm not mistaken, they've already shot down the idea of adding this API.