Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
ahamoments.cz
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-24 00:36:04 UTC · ↺ Refresh
MX Hostnames
- mx2.mailchannels.net
- mx1.mailchannels.net
MX Priorities
- mx1.mailchannels.net: 10
- mx2.mailchannels.net: 10
A / AAAA Records
- 81.91.86.14 ↩ php7.web4u.cz
- 2001:1568::14 ↩ php7.web4u.cz
Mail Server IPs
- 18.236.29.166 ↩ ec2-18-236-29-166.us-west-2.compute.amazonaws.com
- 52.38.143.159 ↩ ec2-52-38-143-159.us-west-2.compute.amazonaws.com
SOA Record
Raw SOA
ns.web4u.cz admin.web4u.cz 2025051100 10800 3600 1209600 14400
Primary NS (mname)
ns.web4u.cz
Admin Email (rname)
admin@web4u.cz
Serial
2025051100
Refresh
10800s
Retry
3600s
Expire
1209600s
Minimum TTL
14400s
Nameservers (NS)
ns2.web4u.cz
ns.web4u.cz
SPF Record
✗ MissingNo SPF record — domain is unprotected against spoofing.
⚠ No SPF record found. Email servers cannot verify authorized senders.
DMARC Record
✗ MissingNo DMARC record — emails cannot be rejected on auth failure.
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
No TXT records found.
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