tkf.co.jp - robtex.com
tkf.co.jp
| DNSSEC | ⚠️ Not signed | ||||||
| A | 153.127.68.103🇯🇵 SAKURA-A153.127.0.0/17 (ISHIKARI) SAKURA Internet // HOKKAIDO JAPAN BACKBONE Sakaisuji Honmachi Bldg. 9F 1-8-14 Minami-Honmachi, Chuo-ku Osaka 541-0054, Japan | ||||||
| PTR | ik1-432-48099.vs.sakura.ne.jp | ||||||
| NS | asns1.customer.ne.jp ⭐ | ||||||
| A | 210.150.254.86🇯🇵 InfoSphere210.150.0.0/16 INFOSPHERE | ||||||
| PTR | asns1.customer.ne.jp | ||||||
| NS | asns2.customer.ne.jp | ||||||
| A | 210.150.254.94🇯🇵 InfoSphere210.150.0.0/16 INFOSPHERE | ||||||
| PTR | asns2.customer.ne.jp | ||||||
| MX | mail.tkf.co.jp ⭐ | ||||||
| A | 140.227.243.206🇯🇵 InfoSphere140.227.0.0/16 INFOSPHERE | ||||||
| PTR | tkf.co.jp | ||||||
| TXT | v=spf1 include:fmx.etius.jp +ip4:140.227.242.2/32 +ip4:140.227.243.206/32 -all | ||||||
| SOA | asns1.customer.ne.jph-shioi@tkf.co.jp serial=1715309167 | ||||||
co.jp
| DNSSEC | ⚠️ Not signed | ||||||
| TXT | co.jp. | ||||||
PTR for
Previously MX for
tkf.co.jp |
Subdomains
mail.tkf.co.jp |
Same first word
Similar names
DNS History
8 records (4 active, 4 former)
●NSasns1.customer.ne.jp2026-04-27 → 2026-05-10 · 3 obs
● 2026-04-27 07:58:38
● 2026-05-10 09:51:56
●NSasns2.customer.ne.jp2026-04-27 → 2026-05-10 · 3 obs
● 2026-04-27 07:58:38
● 2026-05-10 09:51:56
○NSns3.sphere.ad.jp2015-08-13 → 2017-04-01 · 4 obs
● 2017-04-01 23:21:06
○ 2026-04-27 07:58:38
○ 2026-05-10 09:51:56
○NSns4.sphere.ad.jp2015-08-13 → 2017-04-01 · 4 obs
● 2017-04-01 23:21:06
○ 2026-04-27 07:58:38
○ 2026-05-10 09:51:56
●MXmail.tkf.co.jp2026-04-27 → 2026-05-10 · 3 obs
● 2026-04-27 07:58:38
● 2026-05-10 09:51:56
○MXtkf.co.jp2015-08-13 → 2017-04-01 · 4 obs
● 2017-04-01 23:21:06
○ 2026-04-27 07:58:38
○ 2026-05-10 09:51:56
○A1.33.170.2212015-08-13 → 2017-04-01 · 4 obs
● 2017-04-01 23:21:06
○ 2026-04-27 07:58:38
○ 2026-05-10 09:51:56
●A153.127.68.1032026-04-27 → 2026-05-10 · 3 obs
● 2026-04-27 07:58:38
● 2026-05-10 09:51:56
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| jp | a.dns.jp, b.dns.jp, c.dns.jp, d.dns.jp... | - |
| tkf.co.jp | asns1.customer.ne.jp, asns2.customer.ne.jp | - |
✅ Authoritative Response
Server:210.150.254.86
NS records: asns1.customer.ne.jp, asns2.customer.ne.jp
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for tkf.co.jp (unsigned zone)
⏱️ Timing
Total: 1670ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 153.127.68.103 |
| NS | 2 | asns1.customer.ne.jp, asns2.customer.ne.jp |
| MX | 1 | mail.tkf.co.jp (pri: 10) |
| TXT | 1 | v=spf1 include:fmx.etius.jp +ip4:140.227 |
| SOA | 1 | asns1.customer.ne.jp h-shioi.tkf.co.jp |
Analysis
Hierarchy
tkf.co.jp is the parent of mail.tkf.co.jp.
IP Addresses
tkf.co.jp resolves to one IP number: 153.127.68.103.
Name Servers
tkf.co.jp is delegated to two name servers asns1.customer.ne.jp and asns2.customer.ne.jp.
tkf.co.jp shares the same name server setup as other domains, for instance v1400-096.mailsecure.jp, tsa-g.com, v3600-091.mailsecure.jp, artdink.co.jp and v0800-032.mailsecure.jp.
Host names with one IP number:
asns1.customer.ne.jp points to 210.150.254.86
asns2.customer.ne.jp points to 210.150.254.94
Mail Servers
tkf.co.jp is handled by a single mail server, mail.tkf.co.jp.
mail.tkf.co.jp resolves to IP 140.227.243.206.