Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
ukcoolandheatltd.co.uk
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-22 23:49:41 UTC · ↺ Refresh
MX Hostnames
- comms-byte02.esvacloud.com
- comms-byte.esvacloud.com
MX Priorities
- comms-byte.esvacloud.com: 5
- comms-byte02.esvacloud.com: 5
A / AAAA Records
- 185.229.21.57 ↩ greatstartbusiness.vm.netnerd.com
Mail Server IPs
- 194.39.109.122 ↩ comms-byte02.esvacloud.com
SOA Record
Raw SOA
ns1.greatstartbusiness.vm.netnerd.com logs.netnerd.com 2026030701 3600 1800 1209600 86400
Primary NS (mname)
ns1.greatstartbusiness.vm.netnerd.com
Admin Email (rname)
logs@netnerd.com
Serial
2026030701
Refresh
3600s
Retry
1800s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
ns2.greatstartbusiness.vm.netnerd.com
ns1.greatstartbusiness.vm.netnerd.com
SPF Record
✓ Strict (-all)
v=spf1 +ip4:185.229.21.57 +include:spf.protection.outlook.com +include:spf.esvacloud.com -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ MissingNo DMARC record — emails cannot be rejected on auth failure.
DKIM Selectors
✓ 1 found
default._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: default
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
2 records- MS=ms85354301
- SPFv=spf1 +ip4:185.229.21.57 +include:spf.protection.outlook.com +include:spf.esvacloud.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
See demo & docs
Deep verification
Full email verification for ukcoolandheatltd.co.uk
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits