`yy-s.net`

DNSSEC	⚠️ Not signed
A	157.7.44.229^{🇯🇵 GMO-INTERNET157.7.40.0/21 GMO Internet,Inc Cerulean Tower, 11F Sakuragaokacho-26-1 Shibuya-ku, Tokyo 150-8512, Japan}
		PTR	`users264.vip.heteml.jp`
NS	`dns0.heteml.jp` ⭐
		A	157.7.44.53^{🇯🇵 GMO-INTERNET157.7.40.0/21 GMO Internet,Inc Cerulean Tower, 11F Sakuragaokacho-26-1 Shibuya-ku, Tokyo 150-8512, Japan}
			PTR	`dns510.heteml.jp`
NS	`dns1.heteml.jp`
		A	157.7.188.149^{🇯🇵 GMO-INTERNET157.7.128.0/17 GMO Internet,Inc Cerulean Tower, 11F Sakuragaokacho-26-1 Shibuya-ku, Tokyo 150-8512, Japan}
			PTR	`dns711.phy.heteml.jp`
MX	`mx.hetemail.jp` ⭐
		A	157.7.189.1^{🇯🇵 GMO-INTERNET157.7.128.0/17 GMO Internet,Inc Cerulean Tower, 11F Sakuragaokacho-26-1 Shibuya-ku, Tokyo 150-8512, Japan}
			PTR	`mx.heteml.jp`
TXT	`v=spf1 include:_spf.heteml.jp ~all`
SOA	`dns0.heteml.jp`hostmaster@yy-s.net serial=1783249218

`net`

	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=1783249761

🔒 HSTS Preload (+subdomains)

Same first word

yy-s.co

yy-s.jp

yy-s.net

DNS History

6 records (4 active, 2 former)

●NSdns0.heteml.jp2026-03-12 → 2026-07-05 · 3 obs

○ 2016-09-05 04:20:52
● 2026-03-12 17:17:22
● 2026-07-05 11:29:12

●NSdns1.heteml.jp2026-03-12 → 2026-07-05 · 3 obs

○ 2016-09-05 04:20:52
● 2026-03-12 17:17:22
● 2026-07-05 11:29:12

○NSns1.51dns.com2015-09-01 → 2016-05-25 · 4 obs

● 2015-09-01 09:49:04
● 2016-05-25 03:54:22
○ 2016-09-05 04:20:52
○ 2026-07-05 11:29:12

○NSns2.51dns.com2015-09-01 → 2016-05-25 · 4 obs

● 2015-09-01 09:49:04
● 2016-05-25 03:54:22
○ 2016-09-05 04:20:52
○ 2026-07-05 11:29:12

●MXmx.hetemail.jp2026-03-12 → 2026-07-05 · 2 obs

● 2026-03-12 17:17:22
● 2026-07-05 11:29:12

●A157.7.44.2292026-03-12 → 2026-07-05 · 2 obs

● 2026-03-12 17:17:22
● 2026-07-05 11:29:12

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
net	c.gtld-servers.net, m.gtld-servers.net, e.gtld-servers.net, b.gtld-servers.net...	-
yy-s.net	dns0.heteml.jp, dns1.heteml.jp	-

✅ Authoritative Response

Server:157.7.188.149

NS records: dns0.heteml.jp, dns1.heteml.jp

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for yy-s.net (unsigned zone)

⏱️ Timing

Total: 1028ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`157.7.44.229`
NS	2	`dns0.heteml.jp, dns1.heteml.jp`
MX	1	`mx.hetemail.jp (pri: 10)`
TXT	1	`v=spf1 include:_spf.heteml.jp ~all`
SOA	1	`dns0.heteml.jp hostmaster.yy-s.net`

Analysis

IP Addresses

yy-s.net resolves to just one IP address, 157.7.44.229.

Two other host names, along with re-s.co.jp, eniwa-katagiri.com and kaeru-seitai.com, also share IP numbers with yy-s.net.

Name Servers

Two name servers handle the delegation for yy-s.net: dns0.heteml.jp and dns1.heteml.jp.

yy-s.net shares its NS records with other domains, for example tarrows.jp, muto-office.co.jp, acs-duct.jp and two others.

Each of dns0.heteml.jp and dns1.heteml.jp has one IP address: dns0.heteml.jp uses 157.7.44.53 and dns1.heteml.jp uses 157.7.188.149.

Mail Servers

The sole mail server for yy-s.net is mx.hetemail.jp.

Among the domains sharing a mail server setup with yy-s.net are best-best-best.net, kyoho.net, shakehands-thai.com and two others.

At least a portion of yy-s.net's mail servers are shared with other domains, among them digitalmotion.jp and kodaira.life.

mx.hetemail.jp carries a single IP number, which is 157.7.189.1.

yy-s.net - robtex.com

yy-s.net

net