Questions, answered plainly.

Not in a way you'll notice. DNS lookups are tiny, and our server is in London. Pages that would have loaded lots of ads often load faster, because there's less to fetch. Your download speeds aren't touched, because your traffic doesn't pass through us, only the lookups do.

On Android, yes: Private DNS works on Wi-Fi and mobile data. Setting your router only covers devices on your home Wi-Fi. Away from home, your phone uses Private DNS if you've set it up. On iPhone and iPad we're working on a profile that does the same.

Yes. Switch Private DNS back to Automatic on your phone, or set your router's DNS back to automatic. Switch it back on whenever you like. The setup guides show how to undo each step.

It happens occasionally: a blocklist catches something a site needs. Add the site to your allow-list in the app, and it'll load normally again. If you're not sure which name to allow, email us and we'll help.

We can see the names your devices look up, because that's what DNS is. We keep those logs for 24 hours and then delete them. We don't see the pages you read or what you do on a site, and we don't sell or share the logs. We use them to run the service and to make your weekly report. See the privacy policy.

No. Some ads can't be blocked at DNS level, such as YouTube's in-video ads, or ads served from the same address as the content. How it works explains the limits.