Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
lukasek.cz
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-14 08:15:56 UTC · ↺ Refresh
MX Hostnames
- dx.spamfree.cz
- bx.virusfree.cz
- ax.virusfree.cz
- cx.spamfree.cz
MX Priorities
- cx.spamfree.cz: 12833
- ax.virusfree.cz: 12801
- dx.spamfree.cz: 12849
- bx.virusfree.cz: 12817
A / AAAA Records
- 95.129.97.74 ↩ web.atxnet.cz
Mail Server IPs
- 195.24.76.170 ↩ dq.spamfree.cz
- 2001:67c:15a3::d1 ↩ dx.spamfree.cz
- 31.7.241.24 ↩ ax.virusfree.cz
- 2001:67c:15a1::a1 ↩ ax.virusfree.cz
- 89.187.156.46 ↩ bq.virusfree.cz
- 2001:67c:15a2::b1 ↩ bx.virusfree.cz
SOA Record
Raw SOA
ns.atxnet.cz hostmaster.artax.cz 2017091961 900 600 86400 3600
Primary NS (mname)
ns.atxnet.cz
Admin Email (rname)
hostmaster@artax.cz
Serial
2017091961
Refresh
900s
Retry
600s
Expire
86400s
Minimum TTL
3600s
Nameservers (NS)
ns.atxnet.cz
web.artaxns.cz
SPF Record
✓ Soft Fail (~all)
v=spf1 ip4:82.144.132.191 include:_spf.artax.cz ~all
📊 DNS lookups: 1/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected]; ruf=mailto:[email protected]; fo=1:d:s
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 2 found
selector1._domainkey
selector2._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: selector1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
2 records- MS=ms93177448
- SPFv=spf1 ip4:82.144.132.191 include:_spf.artax.cz ~all
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