ct21.org - robtex.com

ct21.org

DNSSEC⚠️ Not signed
A49.212.160.54🇯🇵 SAKURA-C49.212.0.0/16 (7/OSAKA) SAKURA Internet // WEST JAPAN BACKBONE 1-8-15 Kyutaro-cho, Chuo Osaka 541-0056, Japan
PTRos3-293-36050.vs.sakura.ne.jp
NSns1.a034.srvdomestic3031.com ⭐ ⚠️ Not in parent delegation
A49.212.160.54🇯🇵 SAKURA-C49.212.0.0/16 (7/OSAKA) SAKURA Internet // WEST JAPAN BACKBONE 1-8-15 Kyutaro-cho, Chuo Osaka 541-0056, Japan
PTRos3-293-36050.vs.sakura.ne.jp
NSns1.spensivos9175.com ⚠️ Not in zone NS records
A49.212.160.54🇯🇵 SAKURA-C49.212.0.0/16 (7/OSAKA) SAKURA Internet // WEST JAPAN BACKBONE 1-8-15 Kyutaro-cho, Chuo Osaka 541-0056, Japan
PTRos3-293-36050.vs.sakura.ne.jp
NSns2.a034.srvdomestic3031.com ⚠️ Not in parent delegation
A49.212.160.54🇯🇵 SAKURA-C49.212.0.0/16 (7/OSAKA) SAKURA Internet // WEST JAPAN BACKBONE 1-8-15 Kyutaro-cho, Chuo Osaka 541-0056, Japan
PTRos3-293-36050.vs.sakura.ne.jp
NSns2.spensivos9175.com ⚠️ Not in zone NS records
A49.212.160.54🇯🇵 SAKURA-C49.212.0.0/16 (7/OSAKA) SAKURA Internet // WEST JAPAN BACKBONE 1-8-15 Kyutaro-cho, Chuo Osaka 541-0056, Japan
PTRos3-293-36050.vs.sakura.ne.jp
MXct21.org ⭐
A49.212.160.54🇯🇵 SAKURA-C49.212.0.0/16 (7/OSAKA) SAKURA Internet // WEST JAPAN BACKBONE 1-8-15 Kyutaro-cho, Chuo Osaka 541-0056, Japan
PTRos3-293-36050.vs.sakura.ne.jp
TXTv=spf1 +a +mx +ip4:49.212.160.54 ~all
SOAns1.a034.srvdomestic3031.compostmaster@ct21.org 2024-11-29 #81

org

DNSSEC🔒 Signed (DS record present)
NSa0.org.afilias-nst.info ⭐ ⚠️ Not in parent delegation
NSa2.org.afilias-nst.info ⚠️ Not in parent delegation
NSb0.org.afilias-nst.org
NSb2.org.afilias-nst.org
NSc0.org.afilias-nst.info ⚠️ Not in parent delegation
NSd0.org.afilias-nst.org
SOAa0.org.afilias-nst.infohostmaster@donuts.email serial=1773551953

MX for

ct21.org

Same first word

ct21.org
ct21.com
ct21.com.au
ct21.cn

Similar names

21ct.net
tc21.cn
tc21.co.kr
t2c1.com
21ct.org
21tc.com
tc21.ru
21ct.cn
ct12.cn
21ct.cc
12ct.com
21ct.de
21ct.top
tc21.com
2c1t.com
21ct.com.cn
21tc.cn

DNS History

9 records (6 active, 3 former)

20162017201820192020202120222023202420252026NSns1.a034.srvdomestic3031.comns1.spensivos9175.comns2.a034.srvdomestic3031.comns2.spensivos9175.comns1.mdtechteamhosting.comns2.mdtechteamhosting.comMXct21.orgA49.212.160.5450.87.132.174
●NSns1.a034.srvdomestic3031.com2026-02-23 → 2026-03-22 · 3 obs
○ 2018-12-06 20:56:52
● 2026-02-23 00:03:00
● 2026-03-22 16:49:00
○NSns1.mdtechteamhosting.com2015-07-14 → 2018-12-06 · 4 obs
● 2015-07-14 21:01:00
● 2018-12-06 20:56:52
○ 2026-02-23 00:03:00
○ 2026-03-22 16:49:00
●NSns1.spensivos9175.com2026-02-23 → 2026-03-22 · 3 obs
○ 2018-12-06 20:56:52
● 2026-02-23 00:03:00
● 2026-03-22 16:49:00
●NSns2.a034.srvdomestic3031.com2026-02-23 → 2026-03-22 · 3 obs
○ 2018-12-06 20:56:52
● 2026-02-23 00:03:00
● 2026-03-22 16:49:00
○NSns2.mdtechteamhosting.com2015-07-14 → 2018-12-06 · 4 obs
● 2015-07-14 21:01:00
● 2018-12-06 20:56:52
○ 2026-02-23 00:03:00
○ 2026-03-22 16:49:00
●NSns2.spensivos9175.com2026-02-23 → 2026-03-22 · 3 obs
○ 2018-12-06 20:56:52
● 2026-02-23 00:03:00
● 2026-03-22 16:49:00
●MXct21.org2015-07-14 → 2026-03-22 · 2 obs
● 2015-07-14 21:01:00
● 2026-03-22 16:49:00
●A49.212.160.542026-02-23 → 2026-03-22 · 3 obs
○ 2018-12-06 20:56:52
● 2026-02-23 00:03:00
● 2026-03-22 16:49:00
○A50.87.132.1742015-07-14 → 2018-12-06 · 4 obs
● 2015-07-14 21:01:00
● 2018-12-06 20:56:52
○ 2026-02-23 00:03:00
○ 2026-03-22 16:49:00

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
orgb0.org.afilias-nst.org, b2.org.afilias-nst.org, d0.org.afilias-nst.org-
ct21.orgns2.spensivos9175.com, ns1.spensivos9175.com-

✅ Authoritative Response

Server: 49.212.160.54

NS records: ns2.spensivos9175.com, ns1.spensivos9175.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for ct21.org (unsigned zone)

⏱️ Timing

Total: 619ms | Queries: -

📄 Records

TypeCountSample Data
A149.212.160.54
NS2ns2.a034.srvdomestic3031.com, ns1.a034.srvdomestic3031.com
MX1ct21.org (pri: 0)
TXT1v=spf1 +a +mx +ip4:49.212.160.54 ~all
SOA1ns1.a034.srvdomestic3031.com postmaster.

Analysis

Mail Server Role

ct21.org serves as the mail server for ct21.org.

IP Addresses

ct21.org points to an IP address: 49.212.160.54.

other host names include asatsuri.com, a034.srvdomestic3031.com, ns2.spensivos9175.com, ns1.a034.srvdomestic3031.com and ns2.a034.srvdomestic3031.com; they share IP numbers with ct21.org.

Name Servers

ct21.org delegates to four name servers: ns1.spensivos9175.com, ns2.spensivos9175.com, ns1.a034.srvdomestic3031.com and ns2.a034.srvdomestic3031.com.

ct21.org at least partially shares name servers with other domains, for instance asatsuri.com, a034.srvdomestic3031.com, ns1.a034.srvdomestic3031.com, ns2.a034.srvdomestic3031.com and jahazifestival.com.

These name servers are commonly used with ns1.centos-webpanel.com and ns2.centos-webpanel.com.

Host names with a single IP:

ns1.spensivos9175.com points to 49.212.160.54

ns2.spensivos9175.com points to 49.212.160.54

ns1.a034.srvdomestic3031.com points to 49.212.160.54

ns2.a034.srvdomestic3031.com points to 49.212.160.54

Host names pointing to 49.212.160.54: ns1.spensivos9175.com, ns2.spensivos9175.com, ns1.a034.srvdomestic3031.com and ns2.a034.srvdomestic3031.com

Mail Servers

ct21.org is handled by a single mail server.

The host name ct21.org points to IP 49.212.160.54.