Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
i-vars.com
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-24 00:31:59 UTC · ↺ Refresh
MX Hostnames
- mx1.krystal.uk
- mx2.krystal.uk
MX Priorities
- mx1.krystal.uk: 10
- mx2.krystal.uk: 20
A / AAAA Records
- 35.172.94.1 ↩ staticip.multiscreensite.com
Mail Server IPs
- 185.53.56.46 ↩ mx1.strikemail.co.uk
- 185.53.56.44 ↩ mx1.strikemail.co.uk
- 185.53.56.45 ↩ mx2.strikemail.co.uk
- 185.53.56.47 ↩ mx2.strikemail.co.uk
SOA Record
Raw SOA
ns1.krystal.uk admin.k-validator-abalone-lon.krystal.uk 2026031301 3600 1800 1209600 86400
Primary NS (mname)
ns1.krystal.uk
Admin Email (rname)
admin@k-validator-abalone-lon.krystal.uk
Serial
2026031301
Refresh
3600s
Retry
1800s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
ns1.krystal.uk
ns2.krystal.uk
SPF Record
✓ Strict (-all)
v=spf1 ip4:77.72.0.66 ip4:77.72.2.84 +mx +a +include:relay.k.io -all
📊 DNS lookups: 3/10
✓ 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
1 record- SPFv=spf1 ip4:77.72.0.66 ip4:77.72.2.84 +mx +a +include:relay.k.io -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 i-vars.com
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits