Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
nethost.cz
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-18 07:31:01 UTC · ↺ Refresh
MX Hostnames
- mail-prox-relay-a3x57.nethost.cz
- mail-prox-relay-q98d7.nethost.cz
MX Priorities
- mail-prox-relay-a3x57.nethost.cz: 5
- mail-prox-relay-q98d7.nethost.cz: 10
A / AAAA Records
- 93.185.108.254 (no PTR)
Mail Server IPs
- 109.123.221.48 ↩ mail-prox-relay-a3x57.nethost.cz
- 217.16.182.117 ↩ mail-prox-relay-q98d7.nethost.cz
SOA Record
Raw SOA
dns.nethost.cz hostmaster.nethost.cz 2026031402 14400 36000 3600000 864
Primary NS (mname)
dns.nethost.cz
Admin Email (rname)
hostmaster@nethost.cz
Serial
2026031402
Refresh
14400s
Retry
36000s
Expire
3600000s
Minimum TTL
864s
Nameservers (NS)
dns.nethost.cz
pns.nethost.cz
sns.nethost.sk
tns.nethost.eu
SPF Record
✓ Strict (-all)
v=spf1 include:spf.nethost.cz include:spf.smartemailing.cz include:_spf.google.com -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none; rua=mailto:[email protected]; fo=1;
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 1 found
default._domainkey
✓ Public key: 216 chars (valid)
✓ DKIM properly configured for selector: default
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
4 records- google-site-verification=AkmtYZeSPpo3aUOOswyNd6HSVWuJPiE-R-Lqslftj6U
- SPFv=spf1 include:spf.nethost.cz include:spf.smartemailing.cz include:_spf.google.com -all
- google-site-verification=uY1D_yTJPZ1mPRpeJgGj3f4p34t9Fifg7zl9AiqeW_8
- MS=95D36937679438D820FEB86508C601B6684E536A
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