`crosslearning.jp`

DNSSEC	⚠️ Not signed
A	210.152.8.36^{🇯🇵 IDC210.152.0.0/20 Frontier Inc.}
		PTR	`210-152-8-36.jp-west.compute.idcfcloud.com`
NS	`01.dnsv.jp` ⭐
		A	2400:8500:3300::53^{🇯🇵 GMO-DNS2400:8500:3300::/48 GMO Internet,inc.}
			PTR	`01.dnsv.jp`
		A	157.7.32.53^{🇯🇵 GMO-DNS157.7.32.0/24 GMO Internet,inc. Network-Team.}
			PTR	`01.dnsv.jp`
NS	`02.dnsv.jp`
		A	157.7.33.53^{🇯🇵 GMO-DNS157.7.33.0/24 GMO Internet,inc. Network-Team.}
			PTR	`02.dnsv.jp`
NS	`03.dnsv.jp`
		A	2400:8500:3000::53^{🇯🇵 GMO-DNS2400:8500:3000::/48 GMO Internet,inc.}
			PTR	`03.dnsv.jp`
		A	157.7.34.53^{🇯🇵 GMO-DNS157.7.34.0/24 GMO Internet,inc. Network-Team.}
			PTR	`03.dnsv.jp`
NS	`04.dnsv.jp`
		A	2400:8500:3fff::53^{🇯🇵 GMO-DNS2400:8500:3fff::/48 GMO Internet,inc.}
			PTR	`04.dnsv.jp`
		A	157.7.35.53^{🇯🇵 GMO-DNS157.7.35.0/24 GMO Internet,inc. Network-Team.}
			PTR	`04.dnsv.jp`
TXT	`6A3395D8B6DDAAF5539CA401E404`
SOA	`01.dnsv.jp`hostmaster@dnsv.jp serial=1770370126

`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=1771290902

Same first word

crosslearning.jp

crosslearning.biz

crosslearning.ch

DNS History

9 records (5 active, 4 former)

●NS01.dnsv.jp2026-03-02 → 2026-03-07 · 3 obs

○ 2018-05-20 21:41:54
● 2026-03-02 15:32:08
● 2026-03-07 04:18:16

●NS02.dnsv.jp2026-03-02 → 2026-03-07 · 3 obs

○ 2018-05-20 21:41:54
● 2026-03-02 15:32:08
● 2026-03-07 04:18:16

●NS03.dnsv.jp2026-03-02 → 2026-03-07 · 3 obs

○ 2018-05-20 21:41:54
● 2026-03-02 15:32:08
● 2026-03-07 04:18:16

●NS04.dnsv.jp2026-03-02 → 2026-03-07 · 3 obs

○ 2018-05-20 21:41:54
● 2026-03-02 15:32:08
● 2026-03-07 04:18:16

○NSdns01.gmoserver.jp2018-05-20 → 2018-05-20 · 3 obs

● 2018-05-20 21:41:54
○ 2026-03-02 15:32:08
○ 2026-03-07 04:18:16

○NSdns02.gmoserver.jp2018-05-20 → 2018-05-20 · 3 obs

● 2018-05-20 21:41:54
○ 2026-03-02 15:32:08
○ 2026-03-07 04:18:16

○MXmx9.gmoserver.jp2018-05-20 → 2018-05-20 · 3 obs

● 2018-05-20 21:41:54
○ 2026-03-02 15:32:08
○ 2026-03-07 04:18:16

○A203.183.216.1042018-05-20 → 2018-05-20 · 3 obs

● 2018-05-20 21:41:54
○ 2026-03-02 15:32:08
○ 2026-03-07 04:18:16

●A210.152.8.362026-03-02 → 2026-03-07 · 3 obs

○ 2018-05-20 21:41:54
● 2026-03-02 15:32:08
● 2026-03-07 04:18:16

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
jp	f.dns.jp, g.dns.jp, d.dns.jp, e.dns.jp...	-
crosslearning.jp	01.dnsv.jp, 02.dnsv.jp, 03.dnsv.jp, 04.dnsv.jp	7 records

✅ Authoritative Response

Server: 157.7.32.53

NS records: 01.dnsv.jp, 02.dnsv.jp, 03.dnsv.jp, 04.dnsv.jp

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for crosslearning.jp (unsigned zone)

⏱️ Timing

Total: 891ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`210.152.8.36`
NS	4	`01.dnsv.jp, 02.dnsv.jp...`
TXT	1	`6A3395D8B6DDAAF5539CA401E404`
SOA	1	`01.dnsv.jp hostmaster.dnsv.jp`

📌 Glue Records Collected

Total: 7

Out-of-bailiwick: 7 (04.dnsv.jp, 03.dnsv.jp, 02.dnsv.jp...)

Analysis

IP Addresses

crosslearning.jp points to an IP address: 210.152.8.36.

Other host names, for instance naiteisha.jp and 210-152-8-36.jp-west.compute.idcfcloud.com, share IP numbers with crosslearning.jp.

Name Servers

crosslearning.jp delegates to four name servers: 01.dnsv.jp, 02.dnsv.jp, 03.dnsv.jp and 04.dnsv.jp.

crosslearning.jp at least partially shares name servers with other domains, for instance encha.in, imail4u.net, yokohamahonmoku.com, projecteye.info and fadie.com.

Hosts with two IP numbers:

01.dnsv.jp points to 2400:8500:3300::53 and 157.7.32.53.

03.dnsv.jp points to 2400:8500:3000::53 and 157.7.34.53.

04.dnsv.jp points to 2400:8500:3fff::53 and 157.7.35.53.

Host with one IP number:

02.dnsv.jp points to 157.7.33.53.

crosslearning.jp - robtex.com