diff --git a/Optional-Hardening.md b/Optional-Hardening.md
index fdf0dc6..8299603 100644
--- a/Optional-Hardening.md
+++ b/Optional-Hardening.md
@@ -62,8 +62,8 @@ user_pref("network.cookie.sameSite.schemeful", true);
 Setup and enforce DNS-over-HTTPS (DoH).
 
 #### 1) Provider
-* Use the one below, or [choose](https://github.com/curl/curl/wiki/DNS-over-HTTPS) your preferred provider.
-* We recommend that you [create a profile](https://nextdns.io/?from=xujj63g5) with NextDNS and follow our [configuration guide](https://github.com/yokoffing/NextDNS-Config).
+* Use the provider below for better [threat protection](https://quad9.net/service/threat-blocking/).
+* :star: Create a profile with [NextDNS](https://nextdns.io/?from=xujj63g5) and follow our [configuration guide](https://github.com/yokoffing/NextDNS-Config) for greater protection from ads, trackers, and security threats.
 ```
 // PREF: set DoH provider
 user_pref("network.trr.uri", "https://dns.quad9.net/dns-query");