Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
premiersecuritylondon.co.uk
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-19 11:57:08 UTC · ↺ Refresh
MX Hostnames
- mx2.krystal.uk
- mx1.krystal.uk
MX Priorities
- mx2.krystal.uk: 20
- mx1.krystal.uk: 10
A / AAAA Records
- 104.21.14.145 (no PTR)
- 172.67.159.175 (no PTR)
- 2606:4700:3030::ac43:9faf (no PTR)
- 2606:4700:3036::6815:e91 (no PTR)
Mail Server IPs
- 185.53.56.47 ↩ mx2.strikemail.co.uk
- 185.53.56.45 ↩ mx2.strikemail.co.uk
- 185.53.56.46 ↩ mx1.strikemail.co.uk
- 185.53.56.44 ↩ mx1.strikemail.co.uk
SOA Record
Raw SOA
chase.ns.cloudflare.com dns.cloudflare.com 2394908976 10000 2400 604800 1800
Primary NS (mname)
chase.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2394908976
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
chase.ns.cloudflare.com
lindsey.ns.cloudflare.com
SPF Record
✗ MissingNo SPF record — domain is unprotected against spoofing.
⚠ No SPF record found. Email servers cannot verify authorized senders.
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
No TXT records found.
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