Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
booker.com
Yes
✓ Yes
Google
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-17 21:36:35 UTC · ↺ Refresh
MX Hostnames
- alt2.aspmx.l.google.com
- alt1.aspmx.l.google.com
- aspmx.l.google.com
- aspmx3.googlemail.com
- aspmx2.googlemail.com
MX Priorities
- alt1.aspmx.l.google.com: 20
- alt2.aspmx.l.google.com: 20
- aspmx2.googlemail.com: 30
- aspmx3.googlemail.com: 30
- aspmx.l.google.com: 10
A / AAAA Records
- 13.249.91.79 ↩ server-13-249-91-79.jfk52.r.cloudfront.net
- 13.249.91.22 ↩ server-13-249-91-22.jfk52.r.cloudfront.net
- 13.249.91.110
- 13.249.91.108
Mail Server IPs
- 108.177.123.26 ↩ lcscld-in-f26.1e100.net
- 2800:3f0:4003:c0f::1a (no PTR)
- 172.253.116.26 ↩ dj-in-f26.1e100.net
- 2a00:1450:400b:c02::1a ↩ dj-in-f26.1e100.net
- 108.177.123.27 ↩ lcscld-in-f27.1e100.net
- 172.253.116.27 ↩ dj-in-f27.1e100.net
- 142.251.163.27 ↩ wv-in-f27.1e100.net
- 2607:f8b0:4004:c0b::1a ↩ bj-in-f26.1e100.net
SOA Record
Raw SOA
ns-1085.awsdns-07.org awsdns-hostmaster.amazon.com 1 7200 900 1209600 86400
Primary NS (mname)
ns-1085.awsdns-07.org
Admin Email (rname)
awsdns-hostmaster@amazon.com
Serial
1
Refresh
7200s
Retry
900s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
ns-1689.awsdns-19.co.uk
ns-574.awsdns-07.net
ns-77.awsdns-09.com
ns-1085.awsdns-07.org
SPF Record
✓ Soft Fail (~all)
v=spf1 ip4:50.56.55.15 ip4:50.56.55.163 ip4:74.205.124.159 ip4:63.119.135.226 ip4:70.42.37.0/25 include:_spf.google.com include:mktomail.com include:mailgun.org ~all
📊 DNS lookups: 3/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none; rua=mailto:[email protected]; ruf=mailto:[email protected]; fo=1;
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 1 found
google._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
15 records- have-i-been-pwned-verification=dweb_amfdd1gvy30ji0dedgqw67et
- jamf-site-verification=_0GvFRnKNur26-V9IKOFxw
- miro-verification=2bcf52c32d7be2e815e20b75af7482a3cfeccb9e
- DMARCv=DMARC1; p=quarantine; pct=100; rua=mailto:[email protected]
- SPFv=spf1 ip4:50.56.55.15 ip4:50.56.55.163 ip4:74.205.124.159 ip4:63.119.135.226 ip4:70.42.37.0/25 include:_spf.google.com include:mktomail.com include:mailgun.org ~all
- yandex-verification: f4022ece3c8d7d38
- 00d3i000000ol7meaq
- 817933364-12400201
- MS=ms47872054
- MS=ms80331998
- b962d23dac2047cea18141a147e8c8ba
- ca3-b9a44a0e218542e8890b0866b3f5459d
- dropbox-domain-verification=egu32r2ypcxk
- google-site-verification=WVi0SwRq8LxsV9rrKUpqlXBLP_R33fX2NFHpAiWy6bw
- google-site-verification=mbwpfBJG8segc4uxDlKiX-A9C8XJmELCFs9_0zo2hco
Full email verification for booker.com
Run SMTP check, SPF/DKIM/DMARC and catch-all detection.
SPF / DKIM / DMARC Get 1,000 Free Credits