Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
tgcz.cz
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-14 02:09:29 UTC · ↺ Refresh
MX Hostnames
- mx2.tgcz.cz
- mspool.gts.cz
- mail.tgcz.cz
MX Priorities
- mx2.tgcz.cz: 40
- mspool.gts.cz: 50
- mail.tgcz.cz: 10
A / AAAA Records
- 62.77.95.102 (no PTR)
Mail Server IPs
- 93.91.159.221 ↩ u159-221.static.kabel1.cz
- 193.85.201.247 ↩ mail3.pvt.net
- 62.77.95.101 ↩ mail2.tgcz.cz
SOA Record
Raw SOA
ns1.websupport.cz admin.websupport.cz 1732179304 7200 2048 1048576 2560
Primary NS (mname)
ns1.websupport.cz
Admin Email (rname)
admin@websupport.cz
Serial
1732179304
Refresh
7200s
Retry
2048s
Expire
1048576s
Minimum TTL
2560s
Nameservers (NS)
ns2.websupport.cz
ns3.websupport.eu
ns1.websupport.cz
SPF Record
✓ Soft Fail (~all)
v=spf1 mx a ip4:88.99.253.151 include:spf.atlassian.net include:spf.protection.outlook.com ~all
📊 DNS lookups: 4/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; sp=quarantine; adkim=r; aspf=r; fo=1; rua=mailto:[email protected]; ruf=mailto:[email protected]; rf=afrf; pct=25; ri=86400
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: quarantine
⚠ Policy applies to 25% of failing messages only
DKIM Selectors
✓ 3 found
dkim._domainkey
s1._domainkey
s2._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
4 records- SPFv=spf1 mx a ip4:88.99.253.151 include:spf.atlassian.net include:spf.protection.outlook.com ~all
- MS=ms56052046
- dsGvM1uVXhepgxoYY0NCHTyjkgrM8QGn1T/k0bDHKkrbSB9xI6FPUjByOD4QhIgqxRs+CVz6mKV7u8t0xVJ1iQ==
- atlassian-domain-verification=XsSYboP3pqqyade7/jNB8SDU4a5qajCMxoukXZ+FNj715Hs4xZe37JHzxa5Y9m/+
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