koolearn.cn - robtex.com

koolearn.cn

DNSSEC⚠️ Not signed
NSvip3.alidns.com ⚠️ Not in zone NS records
A2408:4009:500::3🇨🇳 Alibaba-Cloud2408:4009:500::/48 Alibaba Group
A8.212.93.3🇭🇰 Alibaba_Cloud_SEC8.212.93.0/24 Alibaba.com Singapore E-Commerce Private Limited 8 Shenton Way, 45-01 AXA Tower, Singapore 068811
A140.205.1.5🇨🇳 Alibaba-Cloud140.205.1.0/24 China Internet Network Information Center Floor1, Building No.1 C/-Chinese Academy of Sciences 4, South 4th Street Haidian District,
A170.33.32.210🇸🇬 Alibaba_Cloud_SEC170.33.32.0/24 Alibaba.com Singapore E-Commerce Private Limited 8 Shenton Way, 45-01 AXA Tower, Singapore 068811
A170.33.40.136🇸🇬 Alibaba_Cloud_SEC170.33.40.0/24 Alibaba.com Singapore E-Commerce Private Limited 8 Shenton Way, 45-01 AXA Tower, Singapore 068811
A170.33.73.26🇸🇬 Alibaba_Cloud_SEC170.33.73.0/24 Alibaba.com Singapore E-Commerce Private Limited 8 Shenton Way, 45-01 AXA Tower, Singapore 068811
A170.33.80.10🇸🇬 Alibaba_Cloud_SEC170.33.80.0/24 Alibaba.com Singapore E-Commerce Private Limited 8 Shenton Way, 45-01 AXA Tower, Singapore 068811
NSvip4.alidns.com ⚠️ Not in zone NS records
A2408:4009:500::4🇨🇳 Alibaba-Cloud2408:4009:500::/48 Alibaba Group
A8.212.93.4🇭🇰 Alibaba_Cloud_SEC8.212.93.0/24 Alibaba.com Singapore E-Commerce Private Limited 8 Shenton Way, 45-01 AXA Tower, Singapore 068811
A140.205.1.6🇨🇳 Alibaba-Cloud140.205.1.0/24 China Internet Network Information Center Floor1, Building No.1 C/-Chinese Academy of Sciences 4, South 4th Street Haidian District,
A170.33.32.211🇸🇬 Alibaba_Cloud_SEC170.33.32.0/24 Alibaba.com Singapore E-Commerce Private Limited 8 Shenton Way, 45-01 AXA Tower, Singapore 068811
A170.33.40.137🇸🇬 Alibaba_Cloud_SEC170.33.40.0/24 Alibaba.com Singapore E-Commerce Private Limited 8 Shenton Way, 45-01 AXA Tower, Singapore 068811
A170.33.73.27🇸🇬 Alibaba_Cloud_SEC170.33.73.0/24 Alibaba.com Singapore E-Commerce Private Limited 8 Shenton Way, 45-01 AXA Tower, Singapore 068811
A170.33.80.11🇸🇬 Alibaba_Cloud_SEC170.33.80.0/24 Alibaba.com Singapore E-Commerce Private Limited 8 Shenton Way, 45-01 AXA Tower, Singapore 068811

cn

DNSSEC🔒 Signed (DS record present)
NSa.dns.cn ⭐
NSb.dns.cn
NSc.dns.cn
NSd.dns.cn
NSe.dns.cn
NSns.cernet.net ⚠️ Not in parent delegation
SOAa.dns.cnroot@cnnic.cn serial=2034627467

Same first word

koolearn.info
koolearn.com.cn
koolearn.net.cn
koolearn.cn
koolearn.net
koolearn.com
koolearn.hk

Similar names

korolena.com
nooklear.de
koralone.blogspot.com.eg
koreanol.com
arkoleon.blogspot.com
lonokear.gov
koolaern.com
nearlook.com
realnook.com
nalekoro.blogspot.com
konoreal.jp
lookearn.com
rooklane.org.uk
lonkorea.co.kr
looknear.com
nooklear.com
nookarel.com
nolkorea.org
onekarlo.com
kooleran.com
looknear.me
learnook.com
kaloerno.hu
looknear.co.il
kalonero.com

DNS History

12 records (2 active, 10 former)

20162017201820192020202120222023202420252026NSvip3.alidns.comvip4.alidns.comf1g1ns1.dnspod.netf1g1ns2.dnspod.netns.koolearn.comns2.koolearn.comns3.dnsv5.comns4.dnsv5.comMXmx.koolearn-inc.commxbiz1.qq.commxbiz2.qq.comA211.154.172.33
○NSf1g1ns1.dnspod.net2017-04-05 → 2017-05-15 · 5 obs
○ 2016-09-08 03:37:42
● 2017-04-05 12:40:26
● 2017-05-15 03:37:30
○ 2021-10-03 23:17:32
○ 2026-04-03 03:31:40
○NSf1g1ns2.dnspod.net2017-04-05 → 2017-05-15 · 5 obs
○ 2016-09-08 03:37:42
● 2017-04-05 12:40:26
● 2017-05-15 03:37:30
○ 2021-10-03 23:17:32
○ 2026-04-03 03:31:40
○NSns.koolearn.com2015-08-22 → 2016-09-08 · 4 obs
● 2015-08-22 02:58:10
● 2016-09-08 03:37:42
○ 2017-04-05 12:40:26
○ 2026-04-03 03:31:40
○NSns2.koolearn.com2015-08-22 → 2016-09-08 · 4 obs
● 2015-08-22 02:58:10
● 2016-09-08 03:37:42
○ 2017-04-05 12:40:26
○ 2026-04-03 03:31:40
○NSns3.dnsv5.com2021-10-03 → 2021-10-03 · 4 obs
○ 2017-05-15 03:37:30
● 2021-10-03 23:17:32
○ 2026-03-02 20:34:08
○ 2026-04-03 03:31:40
○NSns4.dnsv5.com2021-10-03 → 2021-10-03 · 4 obs
○ 2017-05-15 03:37:30
● 2021-10-03 23:17:32
○ 2026-03-02 20:34:08
○ 2026-04-03 03:31:40
●NSvip3.alidns.com2021-10-03 → 2026-04-03 · 3 obs
○ 2017-05-15 03:37:30
● 2021-10-03 23:17:32
● 2026-04-03 03:31:40
●NSvip4.alidns.com2021-10-03 → 2026-04-03 · 3 obs
○ 2017-05-15 03:37:30
● 2021-10-03 23:17:32
● 2026-04-03 03:31:40
○MXmx.koolearn-inc.com2015-08-22 → 2017-05-15 · 4 obs
● 2015-08-22 02:58:10
● 2017-05-15 03:37:30
○ 2021-10-03 23:17:32
○ 2026-04-03 03:31:40
○MXmxbiz1.qq.com2021-10-03 → 2021-10-03 · 4 obs
○ 2017-05-15 03:37:30
● 2021-10-03 23:17:32
○ 2026-03-02 20:34:08
○ 2026-04-03 03:31:40
○MXmxbiz2.qq.com2021-10-03 → 2021-10-03 · 4 obs
○ 2017-05-15 03:37:30
● 2021-10-03 23:17:32
○ 2026-03-02 20:34:08
○ 2026-04-03 03:31:40
○A211.154.172.332015-08-22 → 2017-05-15 · 4 obs
● 2015-08-22 02:58:10
● 2017-05-15 03:37:30
○ 2021-10-03 23:17:32
○ 2026-04-03 03:31:40

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
cna.dns.cn, b.dns.cn, c.dns.cn, d.dns.cn...-
koolearn.cnvip3.alidns.com, vip4.alidns.com-

✅ Authoritative Response

Server:170.33.80.10

NS records: vip3.alidns.com, vip4.alidns.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for koolearn.cn (unsigned zone)

⏱️ Timing

Total: 3022ms | Queries: -

📄 Records

TypeCountSample Data

Analysis

Name Servers

Two name servers vip3.alidns.com and vip4.alidns.com handle delegation for koolearn.cn.

koolearn.cn uses the same name server setup as other domains, for example cone-x.com, lynkco.com.cn, seasungame.com, nbcard.com.cn and sxgou.cn.

koolearn.cn partially shares name servers with other domains; examples include miaosoft.cn, ritheme.com, autoxing.com, gaojin.com.cn and huizuche.com.

These name servers are often used with the name servers vip1.alidns.com and vip2.alidns.com.

Host names with seven IP numbers: vip3.alidns.com points to: 2408:4009:500::3, 8.212.93.3, 140.205.1.5, 170.33.32.210, 170.33.40.136, 170.33.73.26 and 170.33.80.10. vip4.alidns.com points to: 2408:4009:500::4, 8.212.93.4, 140.205.1.6, 170.33.32.211, 170.33.40.137, 170.33.73.27 and 170.33.80.11.