Domain Overview
DNS: ✓ 18h ago
Checker: ✓ 18h ago
dupontregistrygroup.com
Yes
✓ Yes
Google
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-05-20 21:06:28 UTC · ↺ Refresh
MX Hostnames
- smtp.google.com
MX Priorities
- smtp.google.com: 1
A / AAAA Records
- 141.193.213.11 (no PTR)
- 141.193.213.10
Mail Server IPs
- 172.253.115.26 ↩ bg-in-f26.1e100.net
- 172.253.122.27 ↩ bh-in-f27.1e100.net
- 172.253.122.26 ↩ bh-in-f26.1e100.net
- 172.253.62.27 ↩ bc-in-f27.1e100.net
- 172.253.115.27 ↩ bg-in-f27.1e100.net
- 2607:f8b0:4004:c06::1a ↩ bg-in-f26.1e100.net
- 2607:f8b0:4004:c06::1b ↩ bg-in-f27.1e100.net
- 2607:f8b0:4004:c09::1b ↩ bh-in-f27.1e100.net
- 2607:f8b0:4004:c07::1b ↩ bc-in-f27.1e100.net
SOA Record
Raw SOA
ns-1834.awsdns-37.co.uk awsdns-hostmaster.amazon.com 1 7200 900 1209600 86400
Primary NS (mname)
ns-1834.awsdns-37.co.uk
Admin Email (rname)
awsdns-hostmaster@amazon.com
Serial
1
Refresh
7200s
Retry
900s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
ns-1834.awsdns-37.co.uk
ns-739.awsdns-28.net
ns-101.awsdns-12.com
ns-1039.awsdns-01.org
SPF Record
✓ Strict (-all)
v=spf1 include:mailgun.org include:_spf.google.com include:43898601.spf55.hubspotemail.net -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1;p=quarantine; pct=10; adkim=r; aspf=r; rua=mailto:[email protected]
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
⚠ Policy applies to 10% of failing messages only
DKIM Selectors
✓ 3 found
google._domainkey
selector1._domainkey
selector2._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
8 records- google-site-verification=udLrbWr7K2Boz6M1YyITn8LHPaKeplzBuzVQAkHEIIE
- klaviyo-site-verification=VDNvUS
- DMARCv=DMARC1;p=quarantine; pct=10; adkim=r; aspf=r; rua=mailto:[email protected]
- SPFv=spf1 include:mailgun.org include:_spf.google.com include:43898601.spf55.hubspotemail.net -all
- MS=ms73348335
- anthropic-domain-verification-3thvp9=hyGR0jkMbHMBZg84M2b3hRC1t
- google-site-verification=qexk0JXs_Gvxd0AC_ln1JnjxKosszYAB5MzVsctXCbw
- google-site-verification=s6hGS1mJ4wN8aVXdiGdpLY3VRBvUI6_kBsoqKdUBypk
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