diff --git a/n/dns.md b/n/dns.md
index fd8c7ff..bb29901 100644
--- a/n/dns.md
+++ b/n/dns.md
@@ -34,12 +34,10 @@ _{{ page.excerpt }} For DNS resolvers, refer to [r/resolv.tsv](/r/resolv.tsv)_
   - [Why to use private ECS?](#why-to-use-private-ecs)
   - [Is this a relevant question?](#is-this-a-relevant-question)
   - [Identifying support for ECS](#identifying-support-for-ecs)
-- [[DNS0.eu] or [Quad9]?](#dns0eu-or-quad9)
 - [CLI applications](#cli-applications)
 - [Mobile applications](#mobile-applications)
   - [Android](#android)
   - [Rethink](#rethink)
-  - [FFUpdater](#ffupdater)
 
 <!-- END doctoc generated TOC please keep comment here to allow auto update -->
 
@@ -252,7 +250,6 @@ See also:
 
 - [NextDNS (Medium.com): How we made DNS both fast and private with ECS](https://medium.com/nextdns/how-we-made-dns-both-fast-and-private-with-ecs-4970d70401e5)
 - [AdGuard DNS: Privacy-friendly EDNS Client Subnet](https://adguard-dns.io/en/blog/privacy-friendly-edns-client-subnet.html)
-- [DNS0 Privacy Policy](https://www.dns0.eu/privacy)
 
 ### Is this a relevant question?
 
@@ -286,41 +283,6 @@ dig +short TXT whoami-ecs.v4.powerdns.org.
 
 ---
 
-## [DNS0.eu] or [Quad9]?
-
-In my experience [DNS0.eu] tends to have better filtering and
-[reporting options](https://www.dns0.eu/report) than [Quad9], while
-[servers being located only in](https://www.dns0.eu/network) the
-[European Union](https://european-union.europa.eu) may either be free brownie
-points on not sending DNS queries outside of the EU or mildly problematic when
-your users start traveling outside the EU which which brings round-trips
-overseas. Additionally private ECS (see above) tends to be bad poor for IPv6 and
-for very small AS like a school, it directs to another side of the country, but
-that is a very minor issue, as opposed to constantly being directed to another
-country.
-
-Meanwhile [Quad9] blocking seems almost as good in
-[tests like this](https://techblog.nexxwave.eu/public-dns-malware-filters-tested-in-september-2024/)
-and they give me impression
-[of more transparency](https://quad9.net/about/transparency-report) (as opposed
-to
-[DNS0.eu only having a <del>Twitter</del> X account](https://twitter.com/dns0eu)).
-[Quad9] also has more options on whether to ECS or not (see above).
-
-The end-users traveling outside of the EU is also solved as they
-[have servers all around the world](https://quad9.net/service/locations/).
-
-Back to [DNS0.eu], while disabling private ECS is not an option, they do have
-other options; [default filters](https://www.dns0.eu),
-[no filters](https://www.dns0.eu/open),
-[heavier filtering (zero)](https://www.dns0.eu/zero) and
-[kids](https://www.dns0.eu/kids).
-
-[DNS0.eu]: https://www.dns0.eu
-[Quad9]: https://quad9.net
-
----
-
 ## CLI applications
 
 - `drill` gets often mentioned, Fedora has it in `ldns-utils`, so others
@@ -420,9 +382,4 @@ Hopefully there is no situation where Rethink stops working and thinks it's
 still working. As can be deduced from this section, sometimes Rethink and I
 disagree with each other. _I don't guarantee I know what I am doing._
 
-### [FFUpdater](https://github.com/Tobi823/ffupdater)
-
-- `https://dns0.eu;2a0f:fc80::;2a0f:fc81::;193.110.81.0;185.253.5.0`
-- `https://open.dns0.eu;2a0f:fc80::ffff;2a0f:fc81::ffff;193.110.81.254;185.253.5.254`
-
 ---