Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
onfrontiers.com
Yes
✓ Yes
Google
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-20 19:54:01 UTC · ↺ Refresh
MX Hostnames
- smtp.google.com
MX Priorities
- smtp.google.com: 1
A / AAAA Records
- 198.202.211.1 (no PTR)
Mail Server IPs
- 64.233.180.27 ↩ on-in-f27.1e100.net
- 142.251.179.27 ↩ pd-in-f27.1e100.net
- 64.233.180.26 ↩ pe-in-f26.1e100.net
- 192.178.218.26 ↩ yuiadtq-in-f26.1e100.net
- 142.251.179.26 ↩ pd-in-f26.1e100.net
- 2607:f8b0:4004:c1f::1b ↩ pd-in-f27.1e100.net
- 2607:f8b0:4004:c25::1a ↩ yuiadtq-in-f26.1e100.net
- 2607:f8b0:4004:c1f::1a ↩ pd-in-f26.1e100.net
- 2607:f8b0:4004:c21::1a ↩ pe-in-f26.1e100.net
SOA Record
Raw SOA
ns-179.awsdns-22.com awsdns-hostmaster.amazon.com 1 7200 900 1209600 86400
Primary NS (mname)
ns-179.awsdns-22.com
Admin Email (rname)
awsdns-hostmaster@amazon.com
Serial
1
Refresh
7200s
Retry
900s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
ns-179.awsdns-22.com
ns-652.awsdns-17.net
ns-1323.awsdns-37.org
ns-1599.awsdns-07.co.uk
SPF Record
✓ Soft Fail (~all)
v=spf1 include:_spf.google.com include:21130119.spf10.hubspotemail.net ~all
📊 DNS lookups: 2/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; rua=mailto:[email protected]
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 4 found
google._domainkey
k1._domainkey
s1._domainkey
s2._domainkey
✓ Public key: 216 chars (valid)
✓ DKIM properly configured for selector: google
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
6 records- SPFv=spf1 include:_spf.google.com include:21130119.spf10.hubspotemail.net ~all
- 80llx4s1dbdkg99q08ymqjzxzy686v5f
- MS=ms14121013
- google-site-verification=34eXmcUefnBOTz5QlmGcYzcLEAVq8BDHxWEDYOjSHGE
- google-site-verification=WD8AMBDrI4-4ZEHz7XxTmDbL9hg_PQg_a8L6D9_8Zww
- google-site-verification=m3gvH18iYAc4ow-0HXQ07O_51oB8e8YX7goy1alRe1Q
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