Domain Overview
DNS: ✓ just now
Checker: ✓ just now
tdcb.com.tw
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-06-02 02:31:13 UTC · ↺ Refresh
MX Hostnames
- mail.tdcb.com.tw
MX Priorities
- mail.tdcb.com.tw: 5
A / AAAA Records
- 118.163.174.74 ↩ mail.tdcb.com.tw
Mail Server IPs
- 118.163.174.74 ↩ mail.tdcb.com.tw
SOA Record
Raw SOA
tdcb.com.tw admin.tdcb.com.tw 1667357411 1800 900 604800 38400
Primary NS (mname)
tdcb.com.tw
Admin Email (rname)
admin@tdcb.com.tw
Serial
1667357411
Refresh
1800s
Retry
900s
Expire
604800s
Minimum TTL
38400s
Nameservers (NS)
ns.tdcb.com.tw
dns.tdcb.com.tw
SPF Record
✓ Soft Fail (~all)
v=spf1 ip4:118.163.174.74 ~all
📊 DNS lookups: 0/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✗ MissingNo DMARC record — emails cannot be rejected on auth failure.
DKIM Selectors
✗ None detectedNo DKIM records found for common selectors — your provider may use a custom selector name.
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
1 record- SPFv=spf1 ip4:118.163.174.74 ~all
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