Domain Overview
DNS: ✓ 15d ago
Checker: ✓ 15d ago
tkcity.com
Disposable
✓ Yes
Unknown
⚠ Yes
Yes
⚠ Yes
No
No
Checked via [email protected]
· 2026-08-15 04:23:12 UTC · ↺ Refresh
MX Hostnames
- tkcity.com
MX Priorities
- tkcity.com: 0
A / AAAA Records
- 153.121.65.90 ↩ tk2-120-60836.vs.sakura.ne.jp
Mail Server IPs
- 153.121.65.90 ↩ tk2-120-60836.vs.sakura.ne.jp
SOA Record
Raw SOA
ns01.f102jp6037.info postmaster.tkcity.com 2024112262 3600 7200 1209600 86400
Primary NS (mname)
ns01.f102jp6037.info
Admin Email (rname)
postmaster@tkcity.com
Serial
2024112262
Refresh
3600s
Retry
7200s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
ns02.f102jp6037.info
ns01.f102jp6037.info
SPF Record
✓ Soft Fail (~all)
v=spf1 +a +mx +ip4:153.121.65.90 ~all
📊 DNS lookups: 2/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
DKIM Selectors
✓ 1 found
default._domainkey
✓ Public key: 216 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
1 record- SPFv=spf1 +a +mx +ip4:153.121.65.90 ~all
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