diff --git a/README.md b/README.md
index 6dff60a..beeb702 100644
--- a/README.md
+++ b/README.md
@@ -404,6 +404,7 @@ See [awesome-lockpicking](https://github.com/fabacab/awesome-lockpicking).
 * [scanless](https://github.com/vesche/scanless) - Utility for using websites to perform port scans on your behalf so as not to reveal your own IP.
 * [smbmap](https://github.com/ShawnDEvans/smbmap) - Handy SMB enumeration tool.
 * [subbrute](https://github.com/TheRook/subbrute) - DNS meta-query spider that enumerates DNS records, and subdomains.
+* [SubDomainRadar](https://subdomainradar.io) - Discover hidden subdomains with unparalleled accuracy and speed.
 * [zmap](https://zmap.io/) - Open source network scanner that enables researchers to easily perform Internet-wide network studies.
 
 ### Protocol Analyzers and Sniffers