Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
calculatorfactory.cn
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-18 00:54:59 UTC · ↺ Refresh
MX Hostnames
- mx3.enterprise.china.alibaba.com
- mx.enterprise.china.alibaba.com
- mx2.enterprise.china.alibaba.com
MX Priorities
- mx.enterprise.china.alibaba.com: 10
- mx3.enterprise.china.alibaba.com: 50
- mx2.enterprise.china.alibaba.com: 10
A / AAAA Records
- 110.173.196.1 (no PTR)
Mail Server IPs
- 106.11.232.132 (no PTR)
- 106.11.232.170 (no PTR)
- 106.11.226.174 (no PTR)
SOA Record
Raw SOA
dns13.hichina.com hostmaster.hichina.com 2026010913 3600 1200 86400 600
Primary NS (mname)
dns13.hichina.com
Admin Email (rname)
hostmaster@hichina.com
Serial
2026010913
Refresh
3600s
Retry
1200s
Expire
86400s
Minimum TTL
600s
Nameservers (NS)
dns13.hichina.com
dns14.hichina.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
✓ 13 found
google._domainkey
selector1._domainkey
selector2._domainkey
default._domainkey
mail._domainkey
dkim._domainkey
k1._domainkey
s1._domainkey
s2._domainkey
zoho._domainkey
sendgrid._domainkey
mxvault._domainkey
amazonses._domainkey
✓ DKIM properly configured for selector: google
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
No TXT records found.
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 calculatorfactory.cn
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits