`tf-kai.jp`

DNSSEC	⚠️ Not signed
A	210.239.84.108^{🇯🇵 IDC210.239.80.0/21 Frontier Inc.}
		PTR	`senyo84x108.atw.ne.jp`
NS	`ns0.atw.jp` ⭐
		A	182.16.226.200^{🇯🇵 atworks182.16.224.0/21 A.T.WORKS,Inc. CIDR-block NO.2}
			PTR	`ns0.atw.jp`
NS	`ns.dlsv.com` ⚠️ Not in zone NS records
		A	210.236.247.71^{🇯🇵 IDC210.236.240.0/20 Frontier Inc.}
NS	`ns1.atw.jp` ⚠️ Not in parent delegation
		A	210.236.247.71^{🇯🇵 IDC210.236.240.0/20 Frontier Inc.}
NS	`ns2.atw.jp` ⚠️ Not in parent delegation
		A	219.99.220.242^{🇯🇵 NSK219.99.192.0/19 Co.,Ltd. 2-1,Minami-cho,Kanazawa-shi,Ishikawa,920-8769}
			PTR	`ns2.atw.jp`
NS	`ns2.dlsv.com` ⚠️ Not in zone NS records
		A	219.99.220.242^{🇯🇵 NSK219.99.192.0/19 Co.,Ltd. 2-1,Minami-cho,Kanazawa-shi,Ishikawa,920-8769}
			PTR	`ns2.atw.jp`
NS	`ns3.atw.jp` ⚠️ Not in parent delegation
		A	182.16.226.193^{🇯🇵 atworks182.16.224.0/21 A.T.WORKS,Inc. CIDR-block NO.2}
			PTR	`ns3.atw.jp`
NS	`ns3.dlsv.com` ⚠️ Not in zone NS records
		A	182.16.226.193^{🇯🇵 atworks182.16.224.0/21 A.T.WORKS,Inc. CIDR-block NO.2}
			PTR	`ns3.atw.jp`
MX	`smtp.tf-kai.jp` ⭐
		A	210.239.84.108^{🇯🇵 IDC210.239.80.0/21 Frontier Inc.}
			PTR	`senyo84x108.atw.ne.jp`
TXT	`v=spf1 +ip4:210.239.84.108 ~all`
SOA	`ns0.atw.jp`hostmaster@atw.jp 2025-06-27 #1

`jp`

	DNSSEC	🔒 Signed (DS record present)
	NS	`z.dns.jp` ⭐
	NS	`a.dns.jp`
	NS	`b.dns.jp`
	NS	`c.dns.jp`
	NS	`d.dns.jp`
	NS	`e.dns.jp`
	NS	`f.dns.jp`
	NS	`g.dns.jp`
	NS	`h.dns.jp`
	SOA	`z.dns.jp`root@dns.jp serial=1776204902

Subdomains

smtp.tf-kai.jp

Same first word

tf-kai.jp

Similar names

fa-kit.ru

kit-fa.com

i-fakt.ru

fit-ka.de

DNS History

10 records (9 active, 1 former)

●NSns.dlsv.com2015-05-25 → 2026-04-14 · 2 obs

● 2015-05-25 00:06:20
● 2026-04-14 22:44:16

●NSns0.atw.jp2026-03-11 → 2026-04-14 · 3 obs

○ 2015-05-25 00:06:20
● 2026-03-11 16:58:04
● 2026-04-14 22:44:16

●NSns1.atw.jp2026-03-11 → 2026-04-14 · 3 obs

○ 2015-05-25 00:06:20
● 2026-03-11 16:58:04
● 2026-04-14 22:44:16

●NSns2.atw.jp2026-03-11 → 2026-04-14 · 3 obs

○ 2015-05-25 00:06:20
● 2026-03-11 16:58:04
● 2026-04-14 22:44:16

●NSns2.dlsv.com2015-05-25 → 2026-04-14 · 2 obs

● 2015-05-25 00:06:20
● 2026-04-14 22:44:16

●NSns3.atw.jp2026-03-11 → 2026-04-14 · 3 obs

○ 2015-05-25 00:06:20
● 2026-03-11 16:58:04
● 2026-04-14 22:44:16

●NSns3.dlsv.com2015-05-25 → 2026-04-14 · 2 obs

● 2015-05-25 00:06:20
● 2026-04-14 22:44:16

●MXsmtp.tf-kai.jp2015-05-25 → 2026-04-14 · 2 obs

● 2015-05-25 00:06:20
● 2026-04-14 22:44:16

○A202.234.18.722015-05-25 → 2016-09-16 · 4 obs

● 2015-05-25 00:06:20
● 2016-09-16 10:23:08
○ 2026-03-11 16:58:04
○ 2026-04-14 22:44:16

●A210.239.84.1082026-03-11 → 2026-04-14 · 3 obs

○ 2016-09-16 10:23:08
● 2026-03-11 16:58:04
● 2026-04-14 22:44:16

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
jp	a.dns.jp, g.dns.jp, e.dns.jp, d.dns.jp...	-
tf-kai.jp	ns3.dlsv.com, ns.dlsv.com, ns2.dlsv.com	-

✅ Authoritative Response

Server:219.99.220.242

NS records: ns3.dlsv.com, ns.dlsv.com, ns2.dlsv.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for tf-kai.jp (unsigned zone)

⏱️ Timing

Total: 1370ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`210.239.84.108`
NS	3	`ns3.atw.jp, ns1.atw.jp...`
MX	1	`smtp.tf-kai.jp (pri: 10)`
TXT	1	`v=spf1 +ip4:210.239.84.108 ~all`
SOA	1	`ns0.atw.jp hostmaster.atw.jp`

Analysis

Hierarchy

The parent of smtp.tf-kai.jp is tf-kai.jp.

IP Addresses

tf-kai.jp points to an IP address: 210.239.84.108.

other host names include sesame-net.com, www.sesame-net.com, smtp.tf-kai.jp, senyo84x108.atw.ne.jp and smtp.sesame-net.com; they share IP numbers with tf-kai.jp.

Name Servers

tf-kai.jp is delegated to seven name servers: ns2.dlsv.com, ns3.dlsv.com, ns.dlsv.com, ns0.atw.jp, ns1.atw.jp, ns2.atw.jp and ns3.atw.jp.

tf-kai.jp at least partially shares name servers with other domains, for instance ahora.jp, kk-nakagawa.co.jp, furuyainc.co.jp, tpi-japan.com and howfulls.co.jp.