xnnd.com tools for dns
Domain Intelligence:

MX Lookup:
SPF Lookup:
DMARC Lookup:
rDNS Lookup:
rDNS Scan:

Other DNS Lookup:

ABUSE.NET Lookup: 
WHOIS Lookup: 
GoogleBL Check: 
HSTS Check: 
Jumper: 
CIDR Calculator: 

Email Authentication Tester

Deliverability: Spam Resource | Blacklists: DNSBL Resource | More tools: wiseTools
31263 | .12 sec | Svr: 2 | xnnd.com access on Tue Oct 16 19:49:05 EDT 2018 from 54.161.116.225
 xnnd simple tools for dns by al iverson since 2008