diff --git a/README.md b/README.md
index e62b7ea..9267d85 100644
--- a/README.md
+++ b/README.md
@@ -233,6 +233,7 @@ Only main chapters:
:small_orange_diamond: namebench - provides personalized DNS server recommendations based on your browsing history.
:small_orange_diamond: massdns - is a high-performance DNS stub resolver for bulk lookups and reconnaissance.
:small_orange_diamond: knock - is a tool to enumerate subdomains on a target domain through a wordlist.
+ :small_orange_diamond: dnsperf - DNS performance testing tools.
:small_orange_diamond: dnscrypt-proxy 2 - a flexible DNS proxy, with support for encrypted DNS protocols.
:small_orange_diamond: dnsdbq - API client providing access to passive DNS database systems (pDNS at Farsight Security, CIRCL pDNS).
:small_orange_diamond: grimd - fast dns proxy, built to black-hole internet advertisements and malware servers.