Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
windeck-gymnasium.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-04-01 06:12:37 UTC · ↺ Refresh
MX Hostnames
- www254.your-server.de
MX Priorities
- www254.your-server.de: 10
A / AAAA Records
- 188.40.28.34 ↩ www254.your-server.de
- 2a01:4f8:d0a:1224::2 ↩ www254.your-server.de
Mail Server IPs
- 188.40.28.34 ↩ www254.your-server.de
- 2a01:4f8:d0a:1224::2 ↩ www254.your-server.de
SOA Record
Raw SOA
oxygen.ns.hetzner.com administrator.windeck-gymnasium.de 2026031602 21600 1800 2419200 86400
Primary NS (mname)
oxygen.ns.hetzner.com
Admin Email (rname)
administrator@windeck-gymnasium.de
Serial
2026031602
Refresh
21600s
Retry
1800s
Expire
2419200s
Minimum TTL
86400s
Nameservers (NS)
hydrogen.ns.hetzner.com
oxygen.ns.hetzner.com
helium.ns.hetzner.de
SPF Record
✓ Strict (-all)
v=spf1 a mx -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1;p=reject;sp=reject;pct=100;adkim=s;aspf=s
✓ Reject — strongest protection
📋 SPF alignment: Strict
· DKIM alignment: Strict
⚠ No aggregate reports (rua= not set)
↳ Subdomain policy: reject
DKIM Selectors
✗ None detectedNo DKIM records found for common selectors — your provider may use a custom selector name.
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
3 records- Windeck-Gymnasium Buehl, Humboldt Str. 3, 77815 Buehl
- google-site-verification=M-OkHwbVvxtU3q7c8uXfoottV9bt6V2fYk3N5CRruyM
- SPFv=spf1 a mx -all
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