`sunmarkschool.com`

DNSSEC	⚠️ Not signed
A	160.251.152.116^{🇯🇵 GMOOSK-NET160.251.152.0/24 GMO Internet,Inc Cerulean Tower, 11F Sakuragaokacho-26-1 Shibuya-ku, Tokyo 150-8512, Japan}
		PTR	`srv06.site-station.com`
NS	`ns1.sunmarkschool.com` ⭐ ⚠️ Not in parent delegation
		A	160.251.152.116^{🇯🇵 GMOOSK-NET160.251.152.0/24 GMO Internet,Inc Cerulean Tower, 11F Sakuragaokacho-26-1 Shibuya-ku, Tokyo 150-8512, Japan}
			PTR	`srv06.site-station.com`
NS	`ns.site-station.com` ⚠️ Not in zone NS records
		A	160.251.152.130^{🇯🇵 GMOOSK-NET160.251.152.0/24 GMO Internet,Inc Cerulean Tower, 11F Sakuragaokacho-26-1 Shibuya-ku, Tokyo 150-8512, Japan}
			PTR	`boot-server.net`
NS	`ns2.sunmarkschool.com` ⚠️ Not in parent delegation
		A	160.251.152.116^{🇯🇵 GMOOSK-NET160.251.152.0/24 GMO Internet,Inc Cerulean Tower, 11F Sakuragaokacho-26-1 Shibuya-ku, Tokyo 150-8512, Japan}
			PTR	`srv06.site-station.com`
NS	`srv06.site-station.com` ⚠️ Not in zone NS records
		A	160.251.152.116^{🇯🇵 GMOOSK-NET160.251.152.0/24 GMO Internet,Inc Cerulean Tower, 11F Sakuragaokacho-26-1 Shibuya-ku, Tokyo 150-8512, Japan}
			PTR	`srv06.site-station.com`
MX	`mail.sunmarkschool.com` ⭐
		A	160.251.152.116^{🇯🇵 GMOOSK-NET160.251.152.0/24 GMO Internet,Inc Cerulean Tower, 11F Sakuragaokacho-26-1 Shibuya-ku, Tokyo 150-8512, Japan}
			PTR	`srv06.site-station.com`
TXT	`v=spf1 +a +mx +a:srv06.site-station.com -all`
SOA	`ns1.sunmarkschool.com`notice@sunfirst.co.jp serial=1773278605

`com`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a.gtld-servers.net` ⭐
	NS	`b.gtld-servers.net`
	NS	`c.gtld-servers.net`
	NS	`d.gtld-servers.net`
	NS	`e.gtld-servers.net`
	NS	`f.gtld-servers.net`
	NS	`g.gtld-servers.net`
	NS	`h.gtld-servers.net`
	NS	`i.gtld-servers.net`
	NS	`j.gtld-servers.net`
	NS	`k.gtld-servers.net`
	NS	`l.gtld-servers.net`
	NS	`m.gtld-servers.net`
	SOA	`a.gtld-servers.net`nstld@verisign-grs.com serial=1775155967

Subdomains

ns2.sunmarkschool.com

ns1.sunmarkschool.com

mail.sunmarkschool.com

Same first word

sunmarkschool.com

DNS History

8 records (6 active, 2 former)

●NSns.site-station.com2026-02-24 → 2026-04-02 · 3 obs

○ 2017-04-24 01:57:08
● 2026-02-24 17:05:04
● 2026-04-02 19:22:06

○NSns.sunmarkschool.com2015-06-30 → 2017-04-24 · 4 obs

● 2015-06-30 10:12:04
● 2017-04-24 01:57:08
○ 2026-02-24 17:05:04
○ 2026-04-02 19:22:06

●NSns1.sunmarkschool.com2026-02-24 → 2026-04-02 · 3 obs

○ 2017-04-24 01:57:08
● 2026-02-24 17:05:04
● 2026-04-02 19:22:06

●NSns2.sunmarkschool.com2026-02-24 → 2026-04-02 · 3 obs

○ 2017-04-24 01:57:08
● 2026-02-24 17:05:04
● 2026-04-02 19:22:06

●NSsrv06.site-station.com2026-02-24 → 2026-04-02 · 3 obs

○ 2017-04-24 01:57:08
● 2026-02-24 17:05:04
● 2026-04-02 19:22:06

●MXmail.sunmarkschool.com2015-06-30 → 2026-04-02 · 2 obs

● 2015-06-30 10:12:04
● 2026-04-02 19:22:06

○A124.211.27.1122015-06-30 → 2017-04-24 · 4 obs

● 2015-06-30 10:12:04
● 2017-04-24 01:57:08
○ 2026-02-24 17:05:04
○ 2026-04-02 19:22:06

●A160.251.152.1162026-02-24 → 2026-04-02 · 3 obs

○ 2017-04-24 01:57:08
● 2026-02-24 17:05:04
● 2026-04-02 19:22:06

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	m.gtld-servers.net, a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net...	-
sunmarkschool.com	ns.site-station.com, srv06.site-station.com	2 records

✅ Authoritative Response

Server:160.251.152.130

NS records: ns.site-station.com, srv06.site-station.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for sunmarkschool.com (unsigned zone)

⏱️ Timing

Total: 429ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`160.251.152.116`
NS	2	`ns1.sunmarkschool.com, ns2.sunmarkschool.com`
MX	1	`mail.sunmarkschool.com (pri: 10)`
TXT	1	`v=spf1 +a +mx +a:srv06.site-station.com`
SOA	1	`ns1.sunmarkschool.com notice.sunfirst.co`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns.site-station.com, srv06.site-station.com)

Analysis

Hierarchy

sunmarkschool.com is the parent of ns2.sunmarkschool.com, ns1.sunmarkschool.com and mail.sunmarkschool.com.

IP Addresses

sunmarkschool.com resolves to one IP number: 160.251.152.116.

other host names including mail.daieido.co.jp, ns2.keigenjiyouchien.ed.jp, ns2.hairmake-nerve.jp, yasuda-shika.jp and ns1.irifune-ls.jp share IP numbers with sunmarkschool.com.

Name Servers

sunmarkschool.com is delegated to four name servers: ns.site-station.com, srv06.site-station.com, ns1.sunmarkschool.com and ns2.sunmarkschool.com.

sunmarkschool.com at least partially shares name servers with other domains, for instance yakiniku-shun.com, os-life.com, liebendental.jp, tanba-ajisaidera.com and yoshidaiin.info.

These name servers are commonly used with the following name servers: srv01.site-station.com, srv02.site-station.com, srv04.site-station.com, srv05.site-station.com, srv09.site-station.com, srv10.site-station.com, srv11.site-station.com, ns.yakiniku-shun.com, ns1.yoshidaiin.info and ns2.yoshidaiin.info.

Host names with a single IP number:

ns.site-station.com points to: 160.251.152.130.

srv06.site-station.com points to: 160.251.152.116.

ns1.sunmarkschool.com points to: 160.251.152.116.

ns2.sunmarkschool.com points to: 160.251.152.116.

Host names pointing to 160.251.152.116: srv06.site-station.com, ns1.sunmarkschool.com and ns2.sunmarkschool.com.

Mail Servers

sunmarkschool.com is handled by a single mail server, mail.sunmarkschool.com.

mail.sunmarkschool.com resolves to IP 160.251.152.116.

sunmarkschool.com - robtex.com