`koumi-dc.com`

DNSSEC	⚠️ Not signed
A	157.7.189.54^{🇯🇵 GMO-INTERNET157.7.128.0/17 GMO Internet,Inc Cerulean Tower, 11F Sakuragaokacho-26-1 Shibuya-ku, Tokyo 150-8512, Japan}
		PTR	`users226.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-proxy501.heteml.jp` ⭐
		A	157.7.189.17^{🇯🇵 GMO-INTERNET157.7.128.0/17 GMO Internet,Inc Cerulean Tower, 11F Sakuragaokacho-26-1 Shibuya-ku, Tokyo 150-8512, Japan}
MX	`mx-proxy502.heteml.jp`⁽²⁰⁾
		A	157.7.189.18^{🇯🇵 GMO-INTERNET157.7.128.0/17 GMO Internet,Inc Cerulean Tower, 11F Sakuragaokacho-26-1 Shibuya-ku, Tokyo 150-8512, Japan}
TXT	`v=spf1 include:_spf.heteml.jp ~all`
SOA	`dns0.heteml.jp`hostmaster@koumi-dc.com serial=1774766897

`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=1774766932

Same first word

koumi-dc.com

DNS History

6 records (5 active, 1 former)

●NSdns0.heteml.jp2016-12-15 → 2026-03-29 · 2 obs

● 2016-12-15 07:45:30
● 2026-03-29 07:16:02

●NSdns1.heteml.jp2016-12-15 → 2026-03-29 · 2 obs

● 2016-12-15 07:45:30
● 2026-03-29 07:16:02

●MXmx-proxy501.heteml.jp2017-12-24 → 2026-03-29 · 2 obs

● 2017-12-24 01:16:52
● 2026-03-29 07:16:02

●MXmx-proxy502.heteml.jp2017-12-24 → 2026-03-29 · 2 obs

● 2017-12-24 01:16:52
● 2026-03-29 07:16:02

○A157.7.188.852016-12-15 → 2017-12-24 · 3 obs

● 2016-12-15 07:45:30
● 2017-12-24 01:16:52
○ 2026-03-29 07:16:02

●A157.7.189.542026-03-29 → 2026-03-29 · 2 obs

○ 2017-12-24 01:16:52
● 2026-03-29 07:16:02

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	c.gtld-servers.net, g.gtld-servers.net, h.gtld-servers.net, e.gtld-servers.net...	-
koumi-dc.com	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 koumi-dc.com (unsigned zone)

⏱️ Timing

Total: 924ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`157.7.189.54`
NS	2	`dns0.heteml.jp, dns1.heteml.jp`
MX	2	`mx-proxy501.heteml.jp (pri: 10), mx-proxy502.heteml.jp (pri: 20)`
TXT	1	`v=spf1 include:_spf.heteml.jp ~all`
SOA	1	`dns0.heteml.jp hostmaster.koumi-dc.com`

Analysis

IP Addresses

koumi-dc.com points to IP number: 157.7.189.54.

Other host names such as re-ism.co.jp, kyowa-country.co.jp, lightsky.jp, syo-sin.com and www.yaokyo.net share IPs with koumi-dc.com.

Name Servers

koumi-dc.com is delegated to two name servers: dns0.heteml.jp and dns1.heteml.jp.

koumi-dc.com shares the same name server setup as u-mirai.com, stuff-net.co.jp, nb-style.info, dimpress.com and taitec.info.

Host names with a single IP:

dns0.heteml.jp points to 157.7.44.53.

dns1.heteml.jp points to 157.7.188.149.

Mail Servers

koumi-dc.com is handled by two mail servers: mx-proxy501.heteml.jp and mx-proxy502.heteml.jp.

The mail server setup for koumi-dc.com matches that of other domains, for instance rmac.jp, imadoki.jp, saltearth.com, dear-logue-totsukaeast.com and mcfc.co.jp.