diff --git a/README.md b/README.md
index b6f3866..92cf55b 100644
--- a/README.md
+++ b/README.md
@@ -74,6 +74,8 @@ A list of search engines useful during Penetration testing, vulnerability assess
 
 ### DNS
 - [DNSDumpster](https://dnsdumpster.com/)
+- [RapidDNS](https://rapiddns.io/)
+- [DNSdb](https://docs.farsightsecurity.com/#dnsdb)
 
 
 ### Certificate Search
@@ -103,11 +105,9 @@ A list of search engines useful during Penetration testing, vulnerability assess
 - [CertSpotter](https://sslmate.com/certspotter/)
 - [Chaos](https://chaos.projectdiscovery.io/#/)
 - [CommonCrawl](https://commoncrawl.org/)
-- [DNSdb](https://docs.farsightsecurity.com/#dnsdb)
 - [FOFA](https://fofa.info/)
 - [HackerTarget](https://hackertarget.com/)
 - [PassiveTotal](https://api.passivetotal.org/)
-- [RapidDNS](https://rapiddns.io/)
 - [Riddler](https://riddler.io/)
 - [RobTex](https://www.robtex.com/)
 - [SiteDossier](http://www.sitedossier.com/)