Live data — DNS records and disposable check were just fetched and saved.
Domain Overview
DNS: ⚡ live
Checker: ⚡ live
koutny.cz
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-09-04 18:35:30 UTC · ↺ Refresh
MX Hostnames
- mxbackup.skok.cz
- mx.skok.cz
MX Priorities
- mx.skok.cz: 10
- mxbackup.skok.cz: 20
A / AAAA Records
- 185.102.21.196 ↩ dw350.webglobe.com
- 2001:880:0:15::403 ↩ dw350.webglobe.com
Mail Server IPs
- 62.109.128.119 ↩ mx-lb.core.webglobe.com
SOA Record
Raw SOA
ns1.webglobe.cz hostmaster.skok.cz 2026090305 21600 3600 604800 3600
Primary NS (mname)
ns1.webglobe.cz
Admin Email (rname)
hostmaster@skok.cz
Serial
2026090305
Refresh
21600s
Retry
3600s
Expire
604800s
Minimum TTL
3600s
Nameservers (NS)
ns3.webglobe.com
ns2.webglobe.cz
ns1.webglobe.cz
SPF Record
✓ Strict (-all)
v=spf1 IP4:46.33.120.100 include:spf1.c4.cz include:spf2.c4.cz -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
DKIM Selectors
✓ 1 found
mail._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: mail
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
1 record- SPFv=spf1 IP4:46.33.120.100 include:spf1.c4.cz include:spf2.c4.cz -all
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