opt-h.com - robtex.com

opt-h.com

DNSSEC⚠️ Not signed
A210.172.159.179🇯🇵 GMO-INTERNET210.172.128.0/19 GMO Internet,Inc Cerulean Tower, 11F Sakuragaokacho-26-1 Shibuya-ku, Tokyo 150-8512, Japan
PTRunused-210-172-159-179.interq.or.jp
NSdns01.athome-hp.jp ⭐
A163.44.76.157🇯🇵 GMO-INTERNET163.44.64.0/19 GMO Internet,Inc Cerulean Tower, 11F Sakuragaokacho-26-1 Shibuya-ku, Tokyo 150-8512, Japan
PTRdns01.athome-hp.jp
NSdns02.athome-hp.jp
A210.172.133.185🇯🇵 GMO-INTERNET210.172.128.0/19 GMO Internet,Inc Cerulean Tower, 11F Sakuragaokacho-26-1 Shibuya-ku, Tokyo 150-8512, Japan
PTRdns02.athome-hp.jp
MXmx.athome-hp.jp ⭐
A163.44.78.112🇯🇵 GMO-INTERNET163.44.64.0/19 GMO Internet,Inc Cerulean Tower, 11F Sakuragaokacho-26-1 Shibuya-ku, Tokyo 150-8512, Japan
PTRmx.athome-hp.jp
TXTv=spf1 include:spf.athome-hp.jp ~all
SOAdns01.athome-hp.jphostmaster@opt-h.com 2017-10-31 #6

com

DNSSEC🔒 Signed (DS record present)
NSa.gtld-servers.net ⭐
NSb.gtld-servers.net
NSc.gtld-servers.net
NSd.gtld-servers.net
NSe.gtld-servers.net
NSf.gtld-servers.net
NSg.gtld-servers.net
NSh.gtld-servers.net
NSi.gtld-servers.net
NSj.gtld-servers.net
NSk.gtld-servers.net
NSl.gtld-servers.net
NSm.gtld-servers.net
SOAa.gtld-servers.netnstld@verisign-grs.com serial=1774425722
WOT: SAFE (61/100)

Subdomains

www.opt-h.com

Same first word

opt-h.com

Similar names

op-th.blogspot.com
h-top.com
op-ht.com
top-h.com
top-h.net
top-h.co.jp
t-hop.com

DNS History

10 records (4 active, 6 former)

20162017201820192020202120222023202420252026NSdns01.athome-hp.jpdns02.athome-hp.jpns4.cpi.ad.jpns5.cpi.ad.jpMXmx.athome-hp.jpvlmx20.secure.ne.jpvlmx21.secure.ne.jpvlmx22.secure.ne.jpA210.172.159.179118.82.93.102
●NSdns01.athome-hp.jp2020-03-31 → 2026-03-25 · 3 obs
○ 2017-03-31 15:41:50
● 2020-03-31 08:51:42
● 2026-03-25 08:25:32
●NSdns02.athome-hp.jp2020-03-31 → 2026-03-25 · 3 obs
○ 2017-03-31 15:41:50
● 2020-03-31 08:51:42
● 2026-03-25 08:25:32
○NSns4.cpi.ad.jp2015-07-17 → 2017-03-31 · 4 obs
● 2015-07-17 04:54:42
● 2017-03-31 15:41:50
○ 2020-03-31 08:51:42
○ 2026-03-25 08:25:32
○NSns5.cpi.ad.jp2015-07-17 → 2017-03-31 · 4 obs
● 2015-07-17 04:54:42
● 2017-03-31 15:41:50
○ 2020-03-31 08:51:42
○ 2026-03-25 08:25:32
●MXmx.athome-hp.jp2020-03-31 → 2026-03-25 · 3 obs
○ 2017-03-31 15:41:50
● 2020-03-31 08:51:42
● 2026-03-25 08:25:32
○MXvlmx20.secure.ne.jp2015-07-17 → 2017-03-31 · 4 obs
● 2015-07-17 04:54:42
● 2017-03-31 15:41:50
○ 2020-03-31 08:51:42
○ 2026-03-25 08:25:32
○MXvlmx21.secure.ne.jp2015-07-17 → 2017-03-31 · 4 obs
● 2015-07-17 04:54:42
● 2017-03-31 15:41:50
○ 2020-03-31 08:51:42
○ 2026-03-25 08:25:32
○MXvlmx22.secure.ne.jp2015-07-17 → 2017-03-31 · 4 obs
● 2015-07-17 04:54:42
● 2017-03-31 15:41:50
○ 2020-03-31 08:51:42
○ 2026-03-25 08:25:32
○A118.82.93.1022015-07-17 → 2017-03-31 · 4 obs
● 2015-07-17 04:54:42
● 2017-03-31 15:41:50
○ 2020-03-31 08:51:42
○ 2026-03-25 08:25:32
●A210.172.159.1792020-03-31 → 2026-03-25 · 3 obs
○ 2017-03-31 15:41:50
● 2020-03-31 08:51:42
● 2026-03-25 08:25:32

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
comh.gtld-servers.net, b.gtld-servers.net, j.gtld-servers.net, f.gtld-servers.net...-
opt-h.comdns01.athome-hp.jp, dns02.athome-hp.jp-

✅ Authoritative Response

Server:210.172.133.185

NS records: dns01.athome-hp.jp, dns02.athome-hp.jp

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for opt-h.com (unsigned zone)

⏱️ Timing

Total: 1930ms | Queries: -

📄 Records

TypeCountSample Data
A1210.172.159.179
NS2dns01.athome-hp.jp, dns02.athome-hp.jp
MX1mx.athome-hp.jp (pri: 10)
TXT1v=spf1 include:spf.athome-hp.jp ~all
SOA1dns01.athome-hp.jp hostmaster.opt-h.com

Analysis

Hierarchy

opt-h.com is a parent of www.opt-h.com.

IP Addresses

opt-h.com points to a single IP address: 210.172.159.179.

Other host names, for instance www.opt-h.com, share IP numbers with opt-h.com.

Name Servers

opt-h.com is delegated to two name servers: dns01.athome-hp.jp and dns02.athome-hp.jp.

opt-h.com uses the same name server setup as other domains, including tomizo.co.jp, nagamura-j.jp, mindsweb.net, forum-navi.com and sanpouweb.com.

At least part of the name servers for opt-h.com are shared with other domains, for instance artist.co.jp, ayumikaihatsu.jp, life-ltd.com, hatano-f.net and sunaihome.jp.

These name servers are commonly used alongside the name servers dns01.gmoserver.jp.

Hostnames with a single IP

dns01.athome-hp.jp resolves to: 163.44.76.157.

dns02.athome-hp.jp resolves to: 210.172.133.185.

Mail Servers

The mail server for opt-h.com is mx.athome-hp.jp.

opt-h.com uses the same mail server setup as other domains, for instance sun-h.com, moriyahousing.co.jp, tohojisho.co.jp, matsuofudousan.com and oatak150501.com.

Host mx.athome-hp.jp points to IP 163.44.78.112.