Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
glg-freiburg.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-29 20:17:59 UTC · ↺ Refresh
MX Hostnames
- edu.glg-freiburg.de
MX Priorities
- edu.glg-freiburg.de: 10
A / AAAA Records
- 217.160.0.125 ↩ 217-160-0-125.elastic-ssl.ui-r.com
- 2001:8d8:100f:f000::2e4 ↩ 2001-08d8-100f-f000-0000-0000-0000-02e4.elastic-ssl.ui-r.com
Mail Server IPs
- 129.143.17.110 ↩ edu.glg-freiburg.de
SOA Record
Raw SOA
ns1051.ui-dns.org hostmaster.1und1.com 2017060408 28800 7200 604800 600
Primary NS (mname)
ns1051.ui-dns.org
Admin Email (rname)
hostmaster@1und1.com
Serial
2017060408
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
600s
Nameservers (NS)
ns1061.ui-dns.com
ns1051.ui-dns.org
ns1027.ui-dns.de
ns1090.ui-dns.biz
SPF Record
✓ Strict (-all)
v=spf1 a mx ip4:129.143.17.110 a:glg-freiburg.de -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; adkim=s; aspf=s
✓ Reject — strongest protection
📋 SPF alignment: Strict
· DKIM alignment: Strict
⚠ No aggregate reports (rua= not set)
DKIM Selectors
✓ 1 found
dkim._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: dkim
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
3 records- apple-domain-verification=WnPtglSF75hTHhgI
- SPFv=spf1 a mx ip4:129.143.17.110 a:glg-freiburg.de -all
- MS=ms13301673
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