# updns services

- [Setup adfree DoH Service](https://docs.usableprivacy.com/dns/updns-services/dns-over-https-doh.md): Public DNS over HTTPS (DoH) service with advertising, tracker, and malware blocking.
- [updns Android Setup](https://docs.usableprivacy.com/dns/updns-services/dns-over-https-doh/updns-android-setup.md): Use the updns DoH service with your Android device to reduce the tracking of your mobile apps and protect against DNS analysis from your Internet service provider.
- [updns basic iOS setup](https://docs.usableprivacy.com/dns/updns-services/dns-over-https-doh/updns-basic-ios-setup.md): Use the updns DoH service with your iOS device to reduce the tracking of your mobile apps and protect against DNS analysis from your Internet service provider.
- [updns DoT Service](https://docs.usableprivacy.com/dns/updns-services/dot-dns-over-tls.md): Public DNS over TLS (DoT) server with advertising, tracker, and malware blocking.


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Perform an HTTP GET request on the current page URL with the `ask` query parameter:

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Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.