diff --git a/README.md b/README.md
index 24c47d8..70e4dae 100644
--- a/README.md
+++ b/README.md
@@ -191,6 +191,7 @@ A curated list of awesome search engines useful during Penetration testing, Vuln
 - [wannabe1337.xyz](https://wannabe1337.xyz/) - Online Tools
 - [DNSlytics](https://dnslytics.com/) - Find out everything about a domain name, IP address or provider
 - [dnsrepo.noc.org](https://dnsrepo.noc.org/) - DNS Database Repository Search
+- [DNSSpy](https://dnsspy.io/) - Monitor, validate and verify your DNS configurations
 
 ### Certificates