pre21.com - robtex.com

pre21.com

DNSSEC⚠️ Not signed
A157.205.28.184🇯🇵 AICS157.205.28.0/23 OTSUKA CORPORATION X-Keiro: noc@aics.ad.jp X-Keiro: JPIRR-alert@ml.aics.ad.jp
PTRwebsvr157-205-28-184.alpha-prm.jp
NSfjkdns99.alpha-prm.jp ⭐
A157.205.203.140🇯🇵 AICS157.205.0.0/16 PACNET (proxy-registered route object)
PTRfjkmst11.alpha-prm.jp
NSfjkdns11.alpha-prm.jp
A157.205.203.136🇯🇵 AICS157.205.0.0/16 PACNET (proxy-registered route object)
PTRfjkdns11.alpha-prm.jp
NSfjkdns12.alpha-prm.jp
A157.205.160.33🇯🇵 AICS157.205.0.0/16 PACNET (proxy-registered route object)
PTRfjkdns12.alpha-prm.jp
NSfjkdns13.alpha-prm.jp
A157.205.160.49🇯🇵 AICS157.205.0.0/16 PACNET (proxy-registered route object)
PTRfjkdns13.alpha-prm.jp
MXmxi.alpha-prm.jp ⭐
A157.205.8.22🇯🇵 AICS157.205.0.0/16 PACNET (proxy-registered route object)
PTRmxi.alpha-prm.jp
TXTv=spf1 ip4:157.205.28.184/32 include:spf.alpha-prm.jp ~all
SOAfjkdns99.alpha-prm.jphostmaster@alpha-prm.jp 2023-11-21 #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=1776203892
WOT: UNKNOWN (71/100)

Subdomains

www.pre21.com

Same first word

pre21.com
pre21.jp

Similar names

erp21.com
erp21.com.sg
12pre.com
12erp.com
21erp.com

DNS History

16 records (6 active, 10 former)

20162017201820192020202120222023202420252026NSfjkdns11.alpha-prm.jpfjkdns12.alpha-prm.jpfjkdns13.alpha-prm.jpfjkdns99.alpha-prm.jpfjkdns01.alpha-prm.jpfjkdns02.alpha-prm.jpfjkdns03.alpha-prm.jpfjkmst01.alpha-prm.jpgntdns01.alpha-plt.jpgntdns02.alpha-plt.jpgntdns03.alpha-plt.jpgntmst21.alpha-plt.jpMXmxi.alpha-prm.jpamxi.aics.ne.jpA157.205.28.184157.205.43.159
○NSfjkdns01.alpha-prm.jp2018-09-24 → 2018-09-24 · 3 obs
○ 2016-05-11 15:26:14
● 2018-09-24 16:16:26
○ 2026-04-14 22:12:22
○NSfjkdns02.alpha-prm.jp2018-09-24 → 2018-09-24 · 3 obs
○ 2016-05-11 15:26:14
● 2018-09-24 16:16:26
○ 2026-04-14 22:12:22
○NSfjkdns03.alpha-prm.jp2018-09-24 → 2018-09-24 · 3 obs
○ 2016-05-11 15:26:14
● 2018-09-24 16:16:26
○ 2026-04-14 22:12:22
●NSfjkdns11.alpha-prm.jp2026-04-14 → 2026-04-14 · 2 obs
○ 2018-09-24 16:16:26
● 2026-04-14 22:12:22
●NSfjkdns12.alpha-prm.jp2026-04-14 → 2026-04-14 · 2 obs
○ 2018-09-24 16:16:26
● 2026-04-14 22:12:22
●NSfjkdns13.alpha-prm.jp2026-04-14 → 2026-04-14 · 2 obs
○ 2018-09-24 16:16:26
● 2026-04-14 22:12:22
●NSfjkdns99.alpha-prm.jp2026-04-14 → 2026-04-14 · 2 obs
○ 2018-09-24 16:16:26
● 2026-04-14 22:12:22
○NSfjkmst01.alpha-prm.jp2018-09-24 → 2018-09-24 · 3 obs
○ 2016-05-11 15:26:14
● 2018-09-24 16:16:26
○ 2026-04-14 22:12:22
○NSgntdns01.alpha-plt.jp2015-07-05 → 2016-05-11 · 4 obs
● 2015-07-05 01:48:08
● 2016-05-11 15:26:14
○ 2018-09-24 16:16:26
○ 2026-04-14 22:12:22
○NSgntdns02.alpha-plt.jp2015-07-05 → 2016-05-11 · 4 obs
● 2015-07-05 01:48:08
● 2016-05-11 15:26:14
○ 2018-09-24 16:16:26
○ 2026-04-14 22:12:22
○NSgntdns03.alpha-plt.jp2015-07-05 → 2016-05-11 · 4 obs
● 2015-07-05 01:48:08
● 2016-05-11 15:26:14
○ 2018-09-24 16:16:26
○ 2026-04-14 22:12:22
○NSgntmst21.alpha-plt.jp2015-07-05 → 2016-05-11 · 4 obs
● 2015-07-05 01:48:08
● 2016-05-11 15:26:14
○ 2018-09-24 16:16:26
○ 2026-04-14 22:12:22
○MXamxi.aics.ne.jp2015-07-05 → 2016-05-11 · 4 obs
● 2015-07-05 01:48:08
● 2016-05-11 15:26:14
○ 2018-09-24 16:16:26
○ 2026-04-14 22:12:22
●MXmxi.alpha-prm.jp2018-09-24 → 2026-04-14 · 3 obs
○ 2016-05-11 15:26:14
● 2018-09-24 16:16:26
● 2026-04-14 22:12:22
●A157.205.28.1842026-04-14 → 2026-04-14 · 2 obs
○ 2018-09-24 16:16:26
● 2026-04-14 22:12:22
○A157.205.43.1592018-09-24 → 2018-09-24 · 2 obs
● 2018-09-24 16:16:26
○ 2026-04-14 22:12:22

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
comh.gtld-servers.net, c.gtld-servers.net, e.gtld-servers.net, g.gtld-servers.net...-
pre21.comfjkdns11.alpha-prm.jp, fjkdns12.alpha-prm.jp, fjkdns13.alpha-prm.jp-

✅ Authoritative Response

Server:157.205.160.33

NS records: fjkdns11.alpha-prm.jp, fjkdns12.alpha-prm.jp, fjkdns13.alpha-prm.jp

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for pre21.com (unsigned zone)

⏱️ Timing

Total: 1109ms | Queries: -

📄 Records

TypeCountSample Data
A1157.205.28.184
NS3fjkdns12.alpha-prm.jp, fjkdns13.alpha-prm.jp...
MX1mxi.alpha-prm.jp (pri: 100)
TXT1v=spf1 ip4:157.205.28.184/32 include:spf
SOA1fjkdns99.alpha-prm.jp hostmaster.alpha-p

Analysis

Hierarchy

www.pre21.com has pre21.com as its parent.

IP Addresses

pre21.com maps to IP address 157.205.28.184.

Other host names for instance www.pre21.com and websvr157-205-28-184.alpha-prm.jp share IP numbers with pre21.com.

Name Servers

pre21.com is delegated to four name servers: fjkdns11.alpha-prm.jp, fjkdns12.alpha-prm.jp, fjkdns13.alpha-prm.jp and fjkdns99.alpha-prm.jp.

pre21.com at least partially shares name servers with other domains such as rdec.co.jp, npasystem.co.jp, k-tsk.co.jp, kinzokuh.co.jp and sunray-r.co.jp.

Host names with one IP number:

fjkdns11.alpha-prm.jp points to: 157.205.203.136

fjkdns12.alpha-prm.jp points to: 157.205.160.33

fjkdns13.alpha-prm.jp points to: 157.205.160.49

fjkdns99.alpha-prm.jp points to: 157.205.203.140

Mail Servers

pre21.com is handled by a single mail server, mxi.alpha-prm.jp.

pre21.com shares the same mail server setup as other domains, including risoh-k.com, masutanitec.co.jp, kaneko-g.co.jp, kbtrans.co.jp and htc-inc.biz.

mxi.alpha-prm.jp points to one IP number: 157.205.8.22.