Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
guthmann.estate
Yes
✓ Yes
Google
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-24 14:21:31 UTC · ↺ Refresh
MX Hostnames
- alt2.aspmx.l.google.com
- alt4.aspmx.l.google.com
- alt1.aspmx.l.google.com
- aspmx.l.google.com
- alt3.aspmx.l.google.com
MX Priorities
- alt2.aspmx.l.google.com: 5
- aspmx.l.google.com: 1
- alt3.aspmx.l.google.com: 10
- alt4.aspmx.l.google.com: 10
- alt1.aspmx.l.google.com: 5
A / AAAA Records
- 172.67.74.236
- 104.26.2.38
- 104.26.3.38
- 2606:4700:20::681a:226
- 2606:4700:20::681a:326
- 2606:4700:20::ac43:4aec
Mail Server IPs
- 172.253.116.26 ↩ dj-in-f26.1e100.net
- 2a00:1450:400b:c02::1a ↩ dj-in-f26.1e100.net
- 172.253.62.26 ↩ bc-in-f26.1e100.net
- 2607:f8b0:4004:c17::1a ↩ bl-in-f26.1e100.net
- 192.178.223.26 ↩ yulhrs-in-f26.1e100.net
- 2a00:1450:4009:c0f::1b ↩ yulhrs-in-f27.1e100.net
- 173.194.76.27 ↩ ws-in-f27.1e100.net
- 2a00:1450:400c:c00::1a ↩ ws-in-x1a.1e100.net
- 108.177.123.27 ↩ lcscld-in-f27.1e100.net
- 2800:3f0:4003:c0f::1b (no PTR)
SOA Record
Raw SOA
jonah.ns.cloudflare.com dns.cloudflare.com 2399273093 10000 2400 604800 1800
Primary NS (mname)
jonah.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2399273093
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
jonah.ns.cloudflare.com
rosa.ns.cloudflare.com
SPF Record
✓ Strict (-all)
v=spf1 include:_spf.google.com -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict 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
✓ 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
4 records- google-site-verification=5RFkAN4p3QhP539OueWx9tku1bic4tAEyq2uWXZ_7So
- google-site-verification=Bs1voduZiI1sPwM-DqaspFO2C9ExxZc_-VXlfVrBgiM
- SPFv=spf1 include:_spf.google.com -all
- cloudflare_dashboard_sso=40aaa1ed622680a4a665dda6d6f26e0e
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