do-kyu.com - robtex.com

do-kyu.com

DNSSEC⚠️ Not signed
A203.183.70.226🇯🇵 IDC203.183.64.0/19 Frontier Inc.
NS01.dnsv.jp ⭐
A2400:8500:3300::53🇯🇵 GMO-DNS2400:8500:3300::/48 GMO Internet,inc.
PTR01.dnsv.jp
A157.7.32.53🇯🇵 GMO-DNS157.7.32.0/24 GMO Internet,inc. Network-Team.
PTR01.dnsv.jp
NS02.dnsv.jp
A157.7.33.53🇯🇵 GMO-DNS157.7.33.0/24 GMO Internet,inc. Network-Team.
PTR02.dnsv.jp
NS03.dnsv.jp
A2400:8500:3000::53🇯🇵 GMO-DNS2400:8500:3000::/48 GMO Internet,inc.
PTR03.dnsv.jp
A157.7.34.53🇯🇵 GMO-DNS157.7.34.0/24 GMO Internet,inc. Network-Team.
PTR03.dnsv.jp
NS04.dnsv.jp
A2400:8500:3fff::53🇯🇵 GMO-DNS2400:8500:3fff::/48 GMO Internet,inc.
PTR04.dnsv.jp
A157.7.35.53🇯🇵 GMO-DNS157.7.35.0/24 GMO Internet,inc. Network-Team.
PTR04.dnsv.jp
MXchm3002.secure.jp ⭐
A150.60.26.226🇯🇵 CPI-NET150.60.0.0/16 KDDI Web Communications Inc.
PTRchm3002.secure.jp
TXTv=spf1 include:spf.secure.ne.jp +ip4:203.183.70.226 ~all
SOA01.dnsv.jphostmaster@dnsv.jp serial=1693442448

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=1776073312
WOT: SAFE (65/100)

Subdomains

chirorin.do-kyu.com
tamafuji.do-kyu.com

DNS History

19 records (6 active, 13 former)

2008201020122014201620182020202220242026NS01.dnsv.jp02.dnsv.jp03.dnsv.jp04.dnsv.jpgntdns01.alpha-plt.jpgntdns02.alpha-plt.jpgntdns03.alpha-plt.jpns6.cpi.ad.jpns7.cpi.ad.jpMXchm3002.secure.jpamxi.aics.ne.jpmail.do-kyu.comvlmx20.secure.ne.jpvlmx21.secure.ne.jpvlmx22.secure.ne.jpA203.183.70.226114.179.246.211150.60.26.248157.205.237.26
●NS01.dnsv.jp2015-06-28 → 2026-04-13 · 6 obs
○ 2007-11-11 07:26:14
● 2015-06-28 07:17:24
● 2016-12-28 04:23:14
○ 2017-12-23 23:07:40
● 2026-04-13 09:59:30
● 2026-04-13 09:59:32
●NS02.dnsv.jp2015-06-28 → 2026-04-13 · 6 obs
○ 2007-11-11 07:26:14
● 2015-06-28 07:17:24
● 2016-12-28 04:23:14
○ 2017-12-23 23:07:40
● 2026-04-13 09:59:30
● 2026-04-13 09:59:32
●NS03.dnsv.jp2026-04-13 → 2026-04-13 · 3 obs
○ 2017-12-23 23:07:40
● 2026-04-13 09:59:30
● 2026-04-13 09:59:32
●NS04.dnsv.jp2026-04-13 → 2026-04-13 · 3 obs
○ 2017-12-23 23:07:40
● 2026-04-13 09:59:30
● 2026-04-13 09:59:32
○NSgntdns01.alpha-plt.jp2007-11-11 → 2007-11-11 · 3 obs
● 2007-11-11 07:26:14
○ 2015-06-28 07:17:24
○ 2026-04-13 09:59:32
○NSgntdns02.alpha-plt.jp2007-11-11 → 2007-11-11 · 3 obs
● 2007-11-11 07:26:14
○ 2015-06-28 07:17:24
○ 2026-04-13 09:59:32
○NSgntdns03.alpha-plt.jp2007-11-11 → 2007-11-11 · 3 obs
● 2007-11-11 07:26:14
○ 2015-06-28 07:17:24
○ 2026-04-13 09:59:32
○NSns6.cpi.ad.jp2017-12-23 → 2017-12-23 · 4 obs
○ 2016-12-28 04:23:14
● 2017-12-23 23:07:40
○ 2026-04-13 09:59:30
○ 2026-04-13 09:59:32
○NSns7.cpi.ad.jp2017-12-23 → 2017-12-23 · 4 obs
○ 2016-12-28 04:23:14
● 2017-12-23 23:07:40
○ 2026-04-13 09:59:30
○ 2026-04-13 09:59:32
○MXamxi.aics.ne.jp2007-11-11 → 2007-11-11 · 3 obs
● 2007-11-11 07:26:14
○ 2015-06-28 07:17:24
○ 2026-04-13 09:59:32
●MXchm3002.secure.jp2026-04-13 → 2026-04-13 · 3 obs
○ 2017-12-23 23:07:40
● 2026-04-13 09:59:30
● 2026-04-13 09:59:32
○MXmail.do-kyu.com2015-06-28 → 2016-12-28 · 5 obs
○ 2007-11-11 07:26:14
● 2015-06-28 07:17:24
● 2016-12-28 04:23:14
○ 2017-12-23 23:07:40
○ 2026-04-13 09:59:32
○MXvlmx20.secure.ne.jp2017-12-23 → 2017-12-23 · 4 obs
○ 2016-12-28 04:23:14
● 2017-12-23 23:07:40
○ 2026-04-13 09:59:30
○ 2026-04-13 09:59:32
○MXvlmx21.secure.ne.jp2017-12-23 → 2017-12-23 · 4 obs
○ 2016-12-28 04:23:14
● 2017-12-23 23:07:40
○ 2026-04-13 09:59:30
○ 2026-04-13 09:59:32
○MXvlmx22.secure.ne.jp2017-12-23 → 2017-12-23 · 4 obs
○ 2016-12-28 04:23:14
● 2017-12-23 23:07:40
○ 2026-04-13 09:59:30
○ 2026-04-13 09:59:32
○A114.179.246.2112015-06-28 → 2016-12-28 · 5 obs
○ 2007-11-11 07:26:14
● 2015-06-28 07:17:24
● 2016-12-28 04:23:14
○ 2017-12-23 23:07:40
○ 2026-04-13 09:59:32
○A150.60.26.2482017-12-23 → 2017-12-23 · 4 obs
○ 2016-12-28 04:23:14
● 2017-12-23 23:07:40
○ 2026-04-13 09:59:30
○ 2026-04-13 09:59:32
○A157.205.237.262007-11-11 → 2007-11-11 · 3 obs
● 2007-11-11 07:26:14
○ 2015-06-28 07:17:24
○ 2026-04-13 09:59:32
●A203.183.70.2262026-04-13 → 2026-04-13 · 3 obs
○ 2017-12-23 23:07:40
● 2026-04-13 09:59:30
● 2026-04-13 09:59:32

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
coml.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net...-
do-kyu.com01.dnsv.jp, 02.dnsv.jp, 03.dnsv.jp, 04.dnsv.jp-

✅ Authoritative Response

Server:157.7.33.53

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for do-kyu.com (unsigned zone)

⏱️ Timing

Total: 1208ms | Queries: -

📄 Records

TypeCountSample Data
A1203.183.70.226
NS401.dnsv.jp, 02.dnsv.jp...
MX1chm3002.secure.jp (pri: 10)
TXT1v=spf1 include:spf.secure.ne.jp +ip4:203
SOA101.dnsv.jp hostmaster.dnsv.jp

Analysis

Hierarchy

do-kyu.com is parent of chirorin.do-kyu.com and tamafuji.do-kyu.com.

IP Addresses

do-kyu.com resolves to a single IP address: 203.183.70.226.

Other host names including ssl-site.jp, osakaya.com, gemroyal.jp, iwakura-fudousan.jp and mx.befriends.jp share IP numbers with do-kyu.com.

Name Servers

do-kyu.com is delegated to four name servers: 01.dnsv.jp, 02.dnsv.jp, 03.dnsv.jp and 04.dnsv.jp.

do-kyu.com at least partially shares name servers with other domains, including aeras-akabane.jp, tdwfi2silangulaukai.net, clstairs.com, kashiwanoha-innovation.jp and g-apps.jp.

Host names 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 names with one IP number:

02.dnsv.jp points to 157.7.33.53.

Mail Servers

do-kyu.com is handled by a single mail server, chm3002.secure.jp.

do-kyu.com uses the same mail server setup as other domains, such as nakano-ao.gr.jp.

chm3002.secure.jp points to a single IP: 150.60.26.226.