Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
nationalbook.org
Yes
✓ Yes
Google
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-23 06:23:03 UTC · ↺ Refresh
MX Hostnames
- alt2.aspmx.l.google.com
- alt4.aspmx.l.google.com
- aspmx.l.google.com
- alt1.aspmx.l.google.com
- alt3.aspmx.l.google.com
MX Priorities
- aspmx.l.google.com: 10
- alt1.aspmx.l.google.com: 20
- alt2.aspmx.l.google.com: 20
- alt4.aspmx.l.google.com: 30
- alt3.aspmx.l.google.com: 30
A / AAAA Records
- 34.149.36.179
- 35.244.153.44
- 34.160.17.71
- 35.190.31.54
Mail Server IPs
- 172.253.63.27 ↩ bi-in-f27.1e100.net
- 2607:f8b0:4004:c06::1a ↩ bg-in-f26.1e100.net
- 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
- 173.194.76.27 ↩ ws-in-f27.1e100.net
- 2a00:1450:400c:c00::1a ↩ ws-in-f26.1e100.net
- 192.178.223.26 ↩ yulhrs-in-f26.1e100.net
- 2a00:1450:4009:c0f::1a ↩ yulhrs-in-f26.1e100.net
SOA Record
Raw SOA
ns1.siteground.net dnsadmin.c33269.sgvps.net 101258 86400 7200 3600000 86400
Primary NS (mname)
ns1.siteground.net
Admin Email (rname)
dnsadmin@c33269.sgvps.net
Serial
101258
Refresh
86400s
Retry
7200s
Expire
3600000s
Minimum TTL
86400s
Nameservers (NS)
ns2.siteground.net
ns1.siteground.net
SPF Record
✓ Soft Fail (~all)
v=spf1 +a +mx +ip4:35.212.76.202 +a:c33269.sgvps.net +include:_spf.google.com include:nationalbook.org.spf.auto.dnssmarthost.net include:aspmx.pardot.com ~all
📊 DNS lookups: 6/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none; aspf=r; adkim=r;
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
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
7 records- google-site-verification=m9IS2b9dFqTwNhZXMz3Mpl6gtkWwZDj4xK5GhX7aKTQ
- SPFv=spf1 +a +mx +ip4:35.212.76.202 +a:c33269.sgvps.net +include:_spf.google.com include:nationalbook.org.spf.auto.dnssmarthost.net include:aspmx.pardot.com ~all
- sending_domain1064922=2bfa367a7db71d5789322feec94eeaa19c6d14961dba707b19476a82df3613f8
- asv=005ef9708f17f72597f1805bdbea9d84
- pardot1064922=ee80cef3bc9f1681d057b2241131eb8ba2d9b69e560217097188aae1634cb8db
- apple-domain-verification=LHrqSSoBWUROG9tT
- +include:outboundmail.blackbaud.net ~all
Full email verification for nationalbook.org
Run SMTP check, SPF/DKIM/DMARC and catch-all detection.
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