Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
corequestions.cz
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-14 05:36:19 UTC · ↺ Refresh
MX Hostnames
- ax.virusfree.cz
- bx.virusfree.cz
- dx.spamfree.cz
MX Priorities
- bx.virusfree.cz: 10
- ax.virusfree.cz: 20
- dx.spamfree.cz: 40
A / AAAA Records
- 23.236.62.147 ↩ 147.62.236.23.bc.googleusercontent.com
Mail Server IPs
- 89.187.156.46 ↩ bq.virusfree.cz
- 2001:67c:15a2::b1 ↩ bx.virusfree.cz
- 31.7.241.24 ↩ ax.virusfree.cz
- 2001:67c:15a1::a1 ↩ ax.virusfree.cz
- 195.24.76.170 ↩ dq.spamfree.cz
- 2001:67c:15a3::d1 ↩ dx.spamfree.cz
SOA Record
Raw SOA
ns1.ignum.com hostmaster.ignum.cz 2026031001 10800 3600 604800 3600
Primary NS (mname)
ns1.ignum.com
Admin Email (rname)
hostmaster@ignum.cz
Serial
2026031001
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
3600s
Nameservers (NS)
ns2.ignum.cz
ns1.ignum.com
SPF Record
✓ Soft Fail (~all)
v=spf1 redirect=spfsoft.virusfree.cz
📊 DNS lookups: 1/10
DMARC Record
✗ p=none
v=DMARC1; p=none; rua=mailto:[email protected]; ruf=mailto:[email protected]
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
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
1 record- SPFv=spf1 redirect=spfsoft.virusfree.cz
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