Domain Overview
DNS: ✓ 3h ago
Checker: ✓ 3h ago
zonearchitects.co.uk
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-10-30 05:46:42 UTC · ↺ Refresh
MX Hostnames
- zonearchitects-co-uk.mail.protection.outlook.com
MX Priorities
- zonearchitects-co-uk.mail.protection.outlook.com: 0
A / AAAA Records
- 77.72.2.93 ↩ tuna-lon.krystal.uk
Mail Server IPs
- 52.101.68.39 ↩ mail-db7pr03cu00607.inbound.protection.outlook.com
- 52.101.73.120 ↩ mail-am7pr02cu00300.inbound.protection.outlook.com
- 52.101.91.156 ↩ mail-maspr04cu00104.inbound.protection.outlook.com
- 52.101.91.162 ↩ mail-matpr04cu00302.inbound.protection.outlook.com
- 2a01:111:f403:ca04::10 ↩ mail-dbapr03cu00100.inbound.protection.outlook.com
- 2a01:111:f403:ca21::a ↩ mail-maspr04cu00102.inbound.protection.outlook.com
- 2a01:111:f403:ca21::c ↩ mail-matpr04cu00204.inbound.protection.outlook.com
- 2a01:111:f403:ca04::f ↩ mail-db7pr03cu00507.inbound.protection.outlook.com
SOA Record
Raw SOA
ns1.krystal.uk admin.k-validator-tuna-lon.krystal.uk 2026101201 3600 1800 1209600 86400
Primary NS (mname)
ns1.krystal.uk
Admin Email (rname)
admin@k-validator-tuna-lon.krystal.uk
Serial
2026101201
Refresh
3600s
Retry
1800s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
ns1.krystal.uk
ns2.krystal.uk
SPF Record
✓ Strict (-all)
v=spf1 ip4:185.194.90.24 ip4:77.72.2.93 include:relay.k.io include:spf.protection.outlook.com -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p= quarantine; sp= quarantine; ruf=mailto:[email protected]; rua= mailto:[email protected]
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: quarantine
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
4 records- google-site-verification=4pF-PJk6F1vvh6y0Tfuca6EaNg029VAodJYh7TLasx4
- sge38k0o03iv3g1j370f7fu2kt
- SPFv=spf1 ip4:185.194.90.24 ip4:77.72.2.93 include:relay.k.io include:spf.protection.outlook.com -all
- pberkjd360mc6kk7f40801tt14
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