diff --git a/README.md b/README.md
index 1c716bf..7c054c0 100644
--- a/README.md
+++ b/README.md
@@ -288,6 +288,7 @@ Thanks to all [contributors](https://github.com/sbilly/awesome-security/graphs/c
 - [PhishStats](https://phishstats.info/) - Phishing Statistics with search for IP, domain and website title.
 - [Threat Jammer](https://threatjammer.com) - REST API service that allows developers, security engineers, and other IT professionals to access curated threat intelligence data from a variety of sources.
 - [Cyberowl](https://github.com/karimhabush/cyberowl) - A daily updated summary of the most frequent types of security incidents currently being reported from different sources.
+- [Validin](https://app.validin.com/) - Current and historic DNS, indexed and pivotable, augmented with OSINT, and with a generous free tier.
 
 ## Social Engineering