dynabook.com - robtex.com

dynabook.com

DNSSEC⚠️ Not signed
A210.232.47.8🇯🇵 OCN210.232.0.0/16 (AS4713) CIDR BLOCK 15 NTT Communications Corporation 1-1-6 Uchisaiwai-cho, Chiyoda-ku Tokyo 100-8019 JAPAN
NSns1.sharp.co.jp ⭐
A61.214.248.154🇯🇵 OCN61.214.0.0/16 (AS4713) CIDR BLOCK 36 NTT Communications Corporation 1-1-6 Uchisaiwai-cho, Chiyoda-ku Tokyo 100-8019 JAPAN
PTRns1.sharp.co.jp
NStg1.sharp.co.jp
A61.214.248.155🇯🇵 OCN61.214.0.0/16 (AS4713) CIDR BLOCK 36 NTT Communications Corporation 1-1-6 Uchisaiwai-cho, Chiyoda-ku Tokyo 100-8019 JAPAN
PTRtg1.sharp.co.jp
MXmailgwmh.jp.sharp ⭐
A210.163.47.242🇯🇵 OCN210.160.0.0/14 (AS4713) CIDR BLOCK NTT Communications Corporation OTEMACHI PLACE WEST TOWER 2-3-1 Otemachi, Chiyoda-ku Tokyo 100-8019 JAPAN
PTRmailgwmh.jp.sharp
MXmailgwsk.jp.sharp(10)
A210.163.47.242🇯🇵 OCN210.160.0.0/14 (AS4713) CIDR BLOCK NTT Communications Corporation OTEMACHI PLACE WEST TOWER 2-3-1 Otemachi, Chiyoda-ku Tokyo 100-8019 JAPAN
PTRmailgwmh.jp.sharp
TXTDr87DTqRKuyougtPIHHI1++PI+wJctA+cqiPO0IlPluEXGvYXjxfFVe4/+tZ9x7inAVovjMyRWP4l...
TXTgoogle-site-verification=0724qZ7qnNpGpa8xZnkQB7MJGmeK7V7TqSXETpoIL-Q
TXTgoogle-gws-recovery-domain-verification=60984596
TXT_globalsign-domain-verification=uBjNM8dqvDZd1S_LP5UqfN28cYN9X8mBl8uRxieEDX
TXTMS=316BC4CACFE05F656E9E55C07265A3D72F1C6446
TXTadobe-idp-site-verification=eb7cc46f453b0fc6c73051a01aaf77290076e0d39a188afd4...
TXTcisco-ci-domain-verification=778aa2b45bf7997fb95d8f6edcb8ff7949d56178bcdb03ac...
TXTv3u08vg8u34psvnf0mm8ptv74v
TXTv=spf1 +ip4:210.232.47.17 +ip4:210.163.47.242 include:spf.protection.outlook....
TXTsihrjx7ivg2rl643okuj2uln7rav4vtx
TXTMS=ms63544167
TXTMS=ms13774893
SOAns1.sharp.co.jppostmaster@sharp.co.jp 2026-02-18 #1

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=1771291435
rank #27721 globally
rank #13878 in the tld
WOT: SAFE (89/100)
📈 Tranco rank: #80,376

Subdomains

bts.dynabook.com
support.dynabook.com
mktg.dynabook.com
www.dynabook.com

Same first word

dynabook.org
dynabook.com.my
dynabook.co
dynabook.de
dynabook.fr
dynabook.biz
dynabook.eu
dynabook.com

Similar names

bookandy.com
andybook.com
kobodayn.fr
bookandy.com.au

DNS History

10 records (5 active, 5 former)

20162017201820192020202120222023202420252026NSns1.sharp.co.jptg1.sharp.co.jpinet-tsb.toshiba.co.jpins11.toshiba.co.jpMXmailgwmh.jp.sharpmailgwsk.jp.sharpA210.232.47.8106.186.99.177111.87.30.3461.202.163.112
○NSinet-tsb.toshiba.co.jp2015-08-29 → 2017-08-21 · 4 obs
● 2015-08-29 06:57:18
● 2017-08-21 05:12:34
○ 2026-02-26 13:22:28
○ 2026-03-02 12:29:40
○NSins11.toshiba.co.jp2015-08-29 → 2017-08-21 · 4 obs
● 2015-08-29 06:57:18
● 2017-08-21 05:12:34
○ 2026-02-26 13:22:28
○ 2026-03-02 12:29:40
●NSns1.sharp.co.jp2026-02-26 → 2026-03-02 · 3 obs
○ 2017-08-21 05:12:34
● 2026-02-26 13:22:28
● 2026-03-02 12:29:40
●NStg1.sharp.co.jp2026-02-26 → 2026-03-02 · 3 obs
○ 2017-08-21 05:12:34
● 2026-02-26 13:22:28
● 2026-03-02 12:29:40
●MXmailgwmh.jp.sharp2026-02-26 → 2026-03-02 · 2 obs
● 2026-02-26 13:22:28
● 2026-03-02 12:29:40
●MXmailgwsk.jp.sharp2026-02-26 → 2026-03-02 · 2 obs
● 2026-02-26 13:22:28
● 2026-03-02 12:29:40
○A106.186.99.1772016-04-06 → 2017-08-21 · 5 obs
○ 2016-02-29 12:00:32
● 2016-04-06 06:39:44
● 2017-08-21 05:12:34
○ 2026-02-26 13:22:28
○ 2026-03-02 12:29:40
○A111.87.30.342015-08-29 → 2016-01-20 · 4 obs
● 2015-08-29 06:57:18
● 2016-01-20 03:48:52
○ 2016-02-29 12:00:32
○ 2026-03-02 12:29:40
●A210.232.47.82026-02-26 → 2026-03-02 · 3 obs
○ 2017-08-21 05:12:34
● 2026-02-26 13:22:28
● 2026-03-02 12:29:40
○A61.202.163.1122016-02-29 → 2016-02-29 · 4 obs
○ 2016-01-20 03:48:52
● 2016-02-29 12:00:32
○ 2016-04-06 06:39:44
○ 2026-03-02 12:29:40

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
coma.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...-
dynabook.comns1.sharp.co.jp, tg1.sharp.co.jp-

✅ Authoritative Response

Server: 61.214.248.155

NS records: ns1.sharp.co.jp, tg1.sharp.co.jp

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for dynabook.com (unsigned zone)

⏱️ Timing

Total: 1369ms | Queries: -

📄 Records

TypeCountSample Data
A1210.232.47.8
NS2tg1.sharp.co.jp, ns1.sharp.co.jp
MX2mailgwmh.jp.sharp (pri: 0), mailgwsk.jp.sharp (pri: 10)
TXT12v3u08vg8u34psvnf0mm8ptv74v, google-gws-recovery-domain-verification=...
SOA1ns1.sharp.co.jp postmaster.sharp.co.jp

Analysis

Hierarchy

dynabook.com is a parent of bts.dynabook.com, support.dynabook.com, mktg.dynabook.com and www.dynabook.com.

IP Addresses

dynabook.com points to an IP address: 210.232.47.8.

Other host names, for instance www.dynabook.com, share IP numbers with dynabook.com.

Name Servers

Two name servers ns1.sharp.co.jp and tg1.sharp.co.jp handle the delegation for dynabook.com.

dynabook.com shares the same name server setup as other domains, for instance aquos.tv, 192.174.130.211.in-addr.arpa, xn--kckza6g6c.jp, nec-display.com and dynacloud.jp.

dynabook.com at least partially shares name servers with other domains, for instance 248.214.61.in-addr.arpa, sharp-world.com, ezaurus.com, 128.109.170.210.in-addr.arpa and 0.37.162.210.in-addr.arpa.

These name servers are commonly used with ns-kg022.ocn.ad.jp, eans11.jp.sharp, wens12.jp.sharp, dns-a.iij.ad.jp, sharp-solar.com and aquos-world.com.

Host names with one IP:

ns1.sharp.co.jp points to: 61.214.248.154

tg1.sharp.co.jp points to: 61.214.248.155

Mail Servers

dynabook.com is handled by two mail servers: mailgwmh.jp.sharp and mailgwsk.jp.sharp.

Host names with a single IP

mailgwmh.jp.sharp points to 210.163.47.242

mailgwsk.jp.sharp points to 210.163.47.242

Host names that point to 210.163.47.242: mailgwmh.jp.sharp and mailgwsk.jp.sharp