Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
zr.hk
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-07-07 09:24:15 UTC · ↺ Refresh
MX Hostnames
- mx1.sg.aliyun.com
- mx2.sg.aliyun.com
MX Priorities
- mx2.sg.aliyun.com: 10
- mx1.sg.aliyun.com: 5
A / AAAA Records
- 47.242.164.234 (no PTR)
Mail Server IPs
- 47.246.173.198 (no PTR)
- 47.246.173.60 (no PTR)
SOA Record
Raw SOA
ns1.363.hk dnsconct.363.hk 2026042307 3600 300 1209600 3600
Primary NS (mname)
ns1.363.hk
Admin Email (rname)
dnsconct@363.hk
Serial
2026042307
Refresh
3600s
Retry
300s
Expire
1209600s
Minimum TTL
3600s
Nameservers (NS)
ns2.363.hk
ns1.363.hk
SPF Record
✓ Strict (-all)
v=spf1 include:spf.sg.aliyun.com -all
📊 DNS lookups: 1/10
✓ 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- SPFv=spf1 include:spf.sg.aliyun.com -all
- _globalsign-domain-verification=YwatqQMfLTf-Br7kPenChVwzWXTqKOOt1cP2y1A6gm
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 · Customize →
See demo & docs
Deep verification
Full email verification for zr.hk
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits