diff --git a/README.md b/README.md
index 698c3f8..604c328 100644
--- a/README.md
+++ b/README.md
@@ -273,6 +273,11 @@ Before add pull request please see **[this](https://github.com/trimstray/the-boo
:small_orange_diamond: DNS Table online - search for DNS records by domain, IP, CIDR, ISP.
:small_orange_diamond: PTRarchive.com - this site is responsible for the safekeeping of historical reverse DNS records.
:small_orange_diamond: xip.ip - wildcard DNS for everyone.
+ :small_orange_diamond: intoDNS - DNS and mail server health checker.
+ :small_orange_diamond: Leaf DNS - comprehensive DNS tester.
+ :small_orange_diamond: dnslookup (ceipam) - one of the best DNS propagation checker (and not only).
+ :small_orange_diamond: What's My DNS - DNS propagation checking Tool.
+
##### :black_small_square: Mail
@@ -281,6 +286,7 @@ Before add pull request please see **[this](https://github.com/trimstray/the-boo
:small_orange_diamond: MX Toolbox - all of your MX record, DNS, blacklist and SMTP diagnostics in one integrated tool.
:small_orange_diamond: blacklistalert - checks to see if your domain is on a Real Time Spam Blacklist.
:small_orange_diamond: MultiRBL - complete IP check for sending Mailservers.
+ :small_orange_diamond: DKIM SPF & Spam Assassin Validator - checks mail authentication and scores messages with Spam Assassin.
##### :black_small_square: Net-tools