Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
thebacklinecompany.net
Yes
✓ Yes
Google
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-23 11:09:08 UTC · ↺ Refresh
MX Hostnames
- smtp.google.com
MX Priorities
- smtp.google.com: 1
A / AAAA Records
- 74.208.236.137 ↩ 74-208-236-137.elastic-ssl.ui-r.com
- 2607:f1c0:100f:f000::2ca
Mail Server IPs
- 142.250.31.26 ↩ bj-in-f26.1e100.net
- 172.253.122.27 ↩ bh-in-f27.1e100.net
- 172.253.122.26 ↩ bh-in-f26.1e100.net
- 172.253.63.26 ↩ bi-in-f26.1e100.net
- 172.253.63.27 ↩ bi-in-f27.1e100.net
- 2607:f8b0:4004:c08::1a ↩ bi-in-f26.1e100.net
- 2607:f8b0:4004:c08::1b ↩ bi-in-f27.1e100.net
- 2607:f8b0:4004:c09::1b ↩ bh-in-f27.1e100.net
- 2607:f8b0:4004:c09::1a ↩ bh-in-f26.1e100.net
SOA Record
Raw SOA
ns1068.ui-dns.com hostmaster.1und1.com 2017060137 28800 7200 604800 600
Primary NS (mname)
ns1068.ui-dns.com
Admin Email (rname)
hostmaster@1und1.com
Serial
2017060137
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
600s
Nameservers (NS)
ns1077.ui-dns.biz
ns1088.ui-dns.org
ns1030.ui-dns.de
ns1068.ui-dns.com
SPF Record
✓ Soft Fail (~all)
v=spf1 include:_spf.google.com ~all
📊 DNS lookups: 1/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; pct=75; 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 75% of failing messages only
DKIM Selectors
✓ 1 found
google._domainkey
✓ Public key: 392 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
3 records- google-site-verification=kQHPmDmSsfW83shNbgrthrnEudKfXRfJJh7mjFR3zFQ
- SPFv=spf1 include:_spf.google.com ~all
- DEFA8166BD
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