+FRITZ!Box router (#165)

Author: simon04

products/1.1.1.1/src/content/setting-up-1.1.1.1/router.md

@@ -94,3 +94,7 @@ Step 3: In the Internet Connection tab, under WAN DNS Setting, in DNS servers, a
 2606:4700:4700::1111
 2606:4700:4700::1001
 ```
+
+## FRITZ!Box
+
+Starting with [FRITZ!OS 7.20](https://en.avm.de/press/press-releases/2020/07/fritzos-720-with-even-more-performance-convenience-and-security-more-than-100-new-features-and-updates/), DNS over TLS is supported, see [Configuring different DNS servers in the FRITZ!Box](https://en.avm.de/service/fritzbox/fritzbox-7590/knowledge-base/publication/show/165_Configuring-different-DNS-servers-in-the-FRITZ-Box/)