`upknowledge.co.jp`

DNSSEC	⚠️ Not signed
A	59.106.19.102^{🇯🇵 SAKURA-B59.106.0.0/17 (7-0/TOKYO) SAKURA Internet // EAST JAPAN BACKBONE 1-8-14 Minami Honmachi, Chuo-ku, Osaka 541-0054, Japan}
		PTR	`www672.sakura.ne.jp`
NS	`master.dns.ne.jp` ⭐
		A	210.224.172.18^{🇯🇵 SAKURA-C210.224.160.0/19 (1/OSAKA) SAKURA Internet // WEST JAPAN BACKBONE 1-8-15 Kyutaro-cho, Chuo Osaka 541-0056, Japan}
			PTR	`master.dns.ne.jp`
NS	`ns1.dns.ne.jp`
		A	61.211.236.1^{🇯🇵 SAKURA-B61.211.236.0/24 (4/TOKYO) SAKURA Internet // EAST JAPAN BACKBONE 1-8-15 Kyutaro-cho, Chuo Osaka 541-0056, Japan}
			PTR	`ns1.dns.ne.jp`
NS	`ns2.dns.ne.jp`
		A	133.167.21.1^{🇯🇵 SAKURA-C133.167.21.0/24 (OSAKA) SAKURA Internet // WEST JAPAN BACKBONE Grand Front Osaka Tower A 35F, 4-20 Ofukacho, Kita-ku, Osaka, Osaka 530-0011, Japan}
			PTR	`ns2.dns.ne.jp`
MX	`upknowledge.co.jp` ⭐
		A	59.106.19.102^{🇯🇵 SAKURA-B59.106.0.0/17 (7-0/TOKYO) SAKURA Internet // EAST JAPAN BACKBONE 1-8-14 Minami Honmachi, Chuo-ku, Osaka 541-0054, Japan}
			PTR	`www672.sakura.ne.jp`
TXT	`v=spf1 a:www672.sakura.ne.jp mx ~all`
SOA	`master.dns.ne.jp`tech@sakura.ad.jp 2016-02-01 #8

`co.jp`

	DNSSEC	🔒 Signed (DS record present)
	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`
	TXT	`co.jp.`

WOT: SAFE (58/100)

Same first word

upknowledge.com.hk

upknowledge.com

DNS History

5 records (5 active, 0 former)

●NSmaster.dns.ne.jp2017-01-12 → 2026-03-17 · 2 obs

● 2017-01-12 07:11:36
● 2026-03-17 23:55:46

●NSns1.dns.ne.jp2017-01-12 → 2026-03-17 · 2 obs

● 2017-01-12 07:11:36
● 2026-03-17 23:55:46

●NSns2.dns.ne.jp2017-01-12 → 2026-03-17 · 2 obs

● 2017-01-12 07:11:36
● 2026-03-17 23:55:46

●MXupknowledge.co.jp2017-01-12 → 2026-03-17 · 2 obs

● 2017-01-12 07:11:36
● 2026-03-17 23:55:46

●A59.106.19.1022017-01-12 → 2026-03-17 · 2 obs

● 2017-01-12 07:11:36
● 2026-03-17 23:55:46

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
jp	a.dns.jp, b.dns.jp, c.dns.jp, d.dns.jp...	-
upknowledge.co.jp	ns2.dns.ne.jp, ns1.dns.ne.jp	2 records

✅ Authoritative Response

Server: 61.211.236.1

NS records: ns2.dns.ne.jp, ns1.dns.ne.jp

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for upknowledge.co.jp (unsigned zone)

⏱️ Timing

Total: 894ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`59.106.19.102`
NS	2	`ns1.dns.ne.jp, ns2.dns.ne.jp`
MX	1	`upknowledge.co.jp (pri: 10)`
TXT	1	`v=spf1 a:www672.sakura.ne.jp mx ~all`
SOA	1	`master.dns.ne.jp tech.sakura.ad.jp`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns1.dns.ne.jp, ns2.dns.ne.jp)

Analysis

IP Addresses

upknowledge.co.jp points to a single IP: 59.106.19.102.

Other host names, for instance hiyoshiotsuka-cl.jp, jepri.org, anasuki.com, suit.sakura.ne.jp and www.bc-stm.com share IP numbers with upknowledge.co.jp.

Name Servers

upknowledge.co.jp is delegated to three name servers: master.dns.ne.jp, ns1.dns.ne.jp and ns2.dns.ne.jp.

upknowledge.co.jp at least partially shares its name servers with other domains, for instance 236.16.160.in-addr.arpa, nosemizu.com, koka.biz, nosai-ngs.or.jp and lifecredit.jp.

These name servers are often used together with the name servers dns.sakura.ad.jp.

Host names with one IP number:

master.dns.ne.jp points to: 210.224.172.18.

ns1.dns.ne.jp points to: 61.211.236.1.

ns2.dns.ne.jp points to: 133.167.21.1.

Mail Servers

upknowledge.co.jp is handled by a single mail server.

upknowledge.co.jp points to IP number 59.106.19.102.

upknowledge.co.jp - robtex.com