diff --git a/README.md b/README.md
index 5a0531d..623a280 100644
--- a/README.md
+++ b/README.md
@@ -170,6 +170,7 @@ A curated list of awesome search engines useful during Penetration testing, Vuln
 - [Awseye](https://awseye.com/) - Open-source intelligence (OSINT) and reconnaissance service tracking publicly accessible AWS data
 - [S4E](https://app.s4e.io/) - Continuous Threat Exposure Management platform that offers a web-based cybersecurity solution for comprehensive scanning and vulnerability detection of digital assets like domains, subdomains, IP addresses, and web apps
 - [ipquery.io](https://ipquery.io/) - The IP Address API for Developers
+- [domaincodex.com](https://www.domaincodex.com/) - Research 500m+ root domain information and all associated data, including records, IP address, page metadata and much more
 
 ### Code