Domain Overview
DNS: โ 2mo ago
Checker: โ 2mo ago
czarnikow.com
Yes
โ Yes
Mimecast
No
No
โ Yes
No
No
Checked via [email protected]
ยท 2026-04-01 02:56:30 UTC ยท โบ Refresh
MX Hostnames
- eu-smtp-inbound-1.mimecast.com
- eu-smtp-inbound-2.mimecast.com
MX Priorities
- eu-smtp-inbound-2.mimecast.com: 10
- eu-smtp-inbound-1.mimecast.com: 10
A / AAAA Records
- 151.101.2.159 (no PTR)
Mail Server IPs
- 91.220.42.201 โฉ eu-smtp-inbound-2.mimecast.com
- 195.130.217.201 โฉ eu-smtp-inbound-1.mimecast.com
- 91.220.42.241 โฉ eu-smtp-inbound-2.mimecast.com
- 195.130.217.241 โฉ eu-smtp-inbound-1.mimecast.com
- 195.130.217.211 โฉ eu-smtp-inbound-1.mimecast.com
- 91.220.42.211 โฉ eu-smtp-inbound-1.mimecast.com
SOA Record
Raw SOA
ns13.worldnic.com namehost.worldnic.com 125112006 10800 3600 604800 3600
Primary NS (mname)
ns13.worldnic.com
Admin Email (rname)
namehost@worldnic.com
Serial
125112006
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
3600s
Nameservers (NS)
ns14.worldnic.com
ns13.worldnic.com
SPF Record
โ Strict (-all)
v=spf1 include:servers.mcsv.net include:_netblocks.mimecast.com include:sparkpostmail.com include:sendgrid.net -all
๐ DNS lookups: 4/10
โ Hard fail (-all) โ strict enforcement
DMARC Record
โ p=none
v=DMARC1; p=none; rua=mailto:[email protected]; ruf=mailto:[email protected]; fo=1;
โ p=none โ monitoring only, no enforcement
๐ SPF alignment: Relaxed
ยท DKIM alignment: Relaxed
๐ง Reports โ mailto:[email protected]
DKIM Selectors
โ 13 found
google._domainkey
selector1._domainkey
selector2._domainkey
default._domainkey
mail._domainkey
dkim._domainkey
k1._domainkey
s1._domainkey
s2._domainkey
zoho._domainkey
sendgrid._domainkey
mxvault._domainkey
amazonses._domainkey
โ Public key (p=) missing in DKIM record for selector google.
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
12 records- hibp-verify=dweb_93s4psl77wd9m06ion3mfso5
- czarnikowcorpwp.azurewebsites.net
- google-site-verification=APi2T_u6BUNFOQwb2MmvfhoirEISgJIW0OeiVj_2nF8
- 9v8mns5dk76al4urap9o7j59oh
- 1vo50gudschqlgqdq01ms8jlat
- fsdqbcnldq3uvu67pj207d0qs1
- apple-domain-verification=yWwmNnpwo0MMABVi
- a5c1378feef6c8c7fe687da57f7f9478c287fc6e45230bb0bd
- SPFv=spf1 include:servers.mcsv.net include:_netblocks.mimecast.com include:sparkpostmail.com include:sendgrid.net -all
- ux+yOMIopQJbDltieluTLaORAHGz4eIKZlDvJGO+XmHrfeLZDQOL+Ca1Rfbdhptc8rb6RcE5Bk1ntaJzmHc/5Q==
- MS=ms79097933
- cusf0j0dro7eebbgoi0kaft7j2
Free ยท No signup required
Add email validation to your forms
Block disposable emails, validate MX records, detect role accounts โ unlimited, forever free.
<script src="https://check.verifyswift.com/"></script>
One line of code ยท Works on any site
See demo & docs
Deep verification
Full email verification for czarnikow.com
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits