Domain Overview
DNS: ✓ 2d ago
Checker: ✓ 2d ago
zackclarke.com
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-09-01 02:25:06 UTC · ↺ Refresh
MX Hostnames
- mx01.1and1.com
- mx00.1and1.com
MX Priorities
- mx01.1and1.com: 10
- mx00.1and1.com: 10
A / AAAA Records
- 35.209.227.98 ↩ 98.227.209.35.bc.googleusercontent.com
Mail Server IPs
- 74.208.114.66 ↩ mx01.perfora.net
- 74.208.114.65 ↩ mx00.perfora.net
SOA Record
Raw SOA
ns57.1and1.com hostmaster.1and1.com 2017060707 28800 7200 604800 300
Primary NS (mname)
ns57.1and1.com
Admin Email (rname)
hostmaster@1and1.com
Serial
2017060707
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
300s
Nameservers (NS)
ns57.1and1.com
ns58.1and1.com
SPF Record
✓ Soft Fail (~all)
v=spf1 include:_spf.perfora.net include:_spf.kundenserver.de ~all
📊 DNS lookups: 2/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none; sp=none; rua=mailto:[email protected]; ruf=mailto:[email protected]; rf=afrf; pct=100; ri=86400
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: none
DKIM Selectors
✓ 1 found
mail._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: mail
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
1 record- SPFv=spf1 include:_spf.perfora.net include:_spf.kundenserver.de ~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 zackclarke.com
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits