Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
gngcambridge.com
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-27 01:01:24 UTC · ↺ Refresh
MX Hostnames
- mx01.ionos.com
- mx00.ionos.com
MX Priorities
- mx00.ionos.com: 10
- mx01.ionos.com: 10
A / AAAA Records
- 151.101.66.159 (no PTR)
- 2607:f1c0:100f:f000::2ce ↩ 2607-f1c0-100f-f000-0000-0000-0000-02ce.elastic-ssl.ui-r.com
Mail Server IPs
- 74.208.5.3 ↩ mx00.perfora.net
- 74.208.5.21 ↩ mx01.perfora.net
SOA Record
Raw SOA
ns1121.ui-dns.org hostmaster.1and1.com 2017062720 28800 7200 604800 300
Primary NS (mname)
ns1121.ui-dns.org
Admin Email (rname)
hostmaster@1and1.com
Serial
2017062720
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
300s
Nameservers (NS)
ns1121.ui-dns.com
ns1121.ui-dns.biz
ns1121.ui-dns.org
ns1121.ui-dns.de
SPF Record
✓ Soft Fail (~all)
v=spf1 include:_spf.google.com include:_spf.perfora.net include:_spf-us.ionos.com include:_spf.kundenserver.de ~all
📊 DNS lookups: 4/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
~ Quarantine
v=DMARC1;p=quarantine;pct=100;ruf=mailto:[email protected]
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
DKIM Selectors
✓ 2 found
s1._domainkey
s2._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: s1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
2 records- SPFv=spf1 include:_spf.google.com include:_spf.perfora.net include:_spf-us.ionos.com include:_spf.kundenserver.de ~all
- _dmarc.gngcambridge.com
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