Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
proteinovadieta.cz
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-26 23:59:00 UTC · ↺ Refresh
MX Hostnames
- mx1.fortion.net
- mx2.fortion.net
- mx0.fortion.net
MX Priorities
- mx0.fortion.net: 5
- mx1.fortion.net: 10
- mx2.fortion.net: 20
A / AAAA Records
- 185.175.85.9 ↩ zoe.fortion.net
Mail Server IPs
- 185.175.87.39 (no PTR)
- 185.175.87.53 (no PTR)
SOA Record
Raw SOA
ns.fortion.cz info.fortion.cz 2026031901 14400 3600 604800 3600
Primary NS (mname)
ns.fortion.cz
Admin Email (rname)
info@fortion.cz
Serial
2026031901
Refresh
14400s
Retry
3600s
Expire
604800s
Minimum TTL
3600s
Nameservers (NS)
ns.fortion.cz
ns.fortion.net
SPF Record
✓ Soft Fail (~all)
v=spf1 a mx ip4:185.175.85.11 include:spf.automizy.com include:sendersrv.com ~all
📊 DNS lookups: 4/10
~ Soft fail (~all) — moderate 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
✓ 6 found
selector1._domainkey
default._domainkey
dkim._domainkey
s1._domainkey
s2._domainkey
amazonses._domainkey
⚠ Public key (p=) missing in DKIM record for selector selector1.
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
2 records- facebook-domain-verification=a07e2gc2idgkn1jclew2sewsms8gg4
- SPFv=spf1 a mx ip4:185.175.85.11 include:spf.automizy.com include:sendersrv.com ~all
Free · No signup required
Add email validation to your forms
Block disposable emails, validate MX records, detect role accounts — unlimited, forever free.
<script src="https://check.verifyswift.com/"></script>
One line of code · Works on any site · Customize →
See demo & docs
Deep verification
Full email verification for proteinovadieta.cz
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits