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/
Site check
/
rtbsystem.com
/
DNS
Passport
TLS
DNS
MX
SPF
DMARC
rtbsystem.com
DNS records for rtbsystem.com
A, AAAA, MX, NS, TXT, CAA + SPF/DMARC/IPv6
A / AAAA
✓ / ✓
SPF
✓
DMARC
✓
Issues
2
A
104.21.68.74
172.67.191.172
AAAA
2606:4700:3030::6815:444a
2606:4700:3035::ac43:bfac
MX
1 smtp.google.com
NS
chuck.ns.cloudflare.com
grace.ns.cloudflare.com
TXT
"slack-domain-verification=mGLBcWtAU5ziueD14Pk0Kn0tljWGTbnQPwCb6kau"
"v=spf1 +ip4:163.172.77.20 +ip4:163.172.75.188 +a +mx include:_spf.google.com ~all"
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