Live data — DNS records and disposable check were just fetched and saved.
Domain Overview
DNS: ⚡ live
Checker: ⚡ live
thermoweb.com
Yes
✓ Yes
Barracuda
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-05-21 07:49:29 UTC · ↺ Refresh
MX Hostnames
- d258046a.ess.barracudanetworks.com
- d258046b.ess.barracudanetworks.com
MX Priorities
No priority data.
A / AAAA Records
- 23.227.38.32
Mail Server IPs
No IPs resolved.
SOA Record
No SOA record found.
Nameservers (NS)
ns26.domaincontrol.com
ns25.domaincontrol.com
SPF Record
✓ Strict (-all)
v=spf1 a mx include:_spf.elasticemail.com include:shops.shopify.com include:spf.protection.outlook.com include:spf.ess.barracudanetworks.com -all
📊 DNS lookups: 6/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none; fo=1; 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
✓ 4 found
selector1._domainkey
selector2._domainkey
s1._domainkey
s2._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: selector1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
6 records- 8tsv9ufs1d4i0hn530a47fgduu
- SPFv=spf1 a mx include:_spf.elasticemail.com include:shops.shopify.com include:spf.protection.outlook.com include:spf.ess.barracudanetworks.com -all
- klaviyo-site-verification=W7bhvu
- google-site-verification=vaX-cSTfDB7Ta5USA8OlWrhmnSU6PiTYTD79NZFPpQU
- D1329663
- google-site-verification=m7F0QzHTfvIUYpIfnJTWgy75bSqiHwgtFCTBWvehTKo
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
See demo & docs
Deep verification
Full email verification for thermoweb.com
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits