81study.com - robtex.com

81study.com

DNSSEC⚠️ Not signed
A156.234.192.42🇭🇰 YANCYLIMITED-AS-HK156.234.0.0/16 YANCY LIMITED
NSns1.myhostadmin.net ⭐
A240e:d9:c200::2🇨🇳 CHINANET-SCIDC-AS-AP240e:d9:c000::/36 SICHUANIDC province network
A60.247.150.254🇨🇳 CHINANET-SCIDC-AS-AP60.247.128.0/18 SICHUANIDC province network
PTRip-60-247-150-254.defastlink.net
A118.123.249.114🇨🇳 CHINANET-SCIDC-AS-AP118.123.240.0/20 CHINANET SiChuan Telecom Internet Data Center
PTRip-118-123-249-114.defastlink.net
A118.123.253.132🇨🇳 CHINANET-SCIDC-AS-AP118.123.240.0/20 CHINANET SiChuan Telecom Internet Data Center
PTRip-118-123-253-132.defastlink.net
NSns2.myhostadmin.net
A240e:d9:c200:1::2🇨🇳 CHINANET-SCIDC-AS-AP240e:d9:c000::/36 SICHUANIDC province network
A61.172.183.73🇨🇳 SHANGHAITELECOM61.172.182.0/23 SHIDC
PTRip-61-172-183-73.defastlink.net
A61.240.129.143🇨🇳 CHINA169-Backbone61.240.128.0/19 CMI (Customer Route)
PTRip-61-240-129-143.defastlink.net
A211.149.230.100🇨🇳 CHINANET-SCIDC-AS-AP211.149.224.0/19 chinanet SC province network-client
PTRip-211-149-230-100.defastlink.net
SOAns1.myhostadmin.netdnsconct@myhostadmin.net 2025-10-13 #3

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

Same first word

81study.com

Similar names

study18.com

DNS History

18 records (3 active, 15 former)

20162017201820192020202120222023202420252026NSns1.myhostadmin.netns2.myhostadmin.netlocalhostns1.mytrafficmanagement.comns2.mytrafficmanagement.comMXmail.skrimple.comA156.234.192.42103.232.215.134123.254.111.180198.58.118.16745.33.2.7945.33.23.18345.56.79.2345.79.19.19650.117.113.21954.244.121.1065.19.157.20096.126.123.244
○NSlocalhost2020-02-12 → 2020-02-12 · 3 obs
● 2020-02-12 20:00:44
○ 2026-03-08 01:17:38
○ 2026-03-08 06:18:02
●NSns1.myhostadmin.net2026-03-08 → 2026-03-08 · 3 obs
○ 2020-02-12 20:00:44
● 2026-03-08 01:17:38
● 2026-03-08 06:18:02
○NSns1.mytrafficmanagement.com2020-02-12 → 2020-02-12 · 3 obs
● 2020-02-12 20:00:44
○ 2026-03-08 01:17:38
○ 2026-03-08 06:18:02
●NSns2.myhostadmin.net2026-03-08 → 2026-03-08 · 3 obs
○ 2020-02-12 20:00:44
● 2026-03-08 01:17:38
● 2026-03-08 06:18:02
○NSns2.mytrafficmanagement.com2020-02-12 → 2020-02-12 · 3 obs
● 2020-02-12 20:00:44
○ 2026-03-08 01:17:38
○ 2026-03-08 06:18:02
○MXmail.skrimple.com2017-03-22 → 2017-03-22 · 3 obs
● 2017-03-22 17:12:08
○ 2020-02-12 20:00:44
○ 2026-03-08 06:18:02
○A103.232.215.1342016-07-24 → 2016-07-24 · 4 obs
○ 2016-03-27 16:33:22
● 2016-07-24 14:43:00
○ 2017-03-22 17:12:08
○ 2026-03-08 06:18:02
○A123.254.111.1802015-08-23 → 2015-08-23 · 3 obs
● 2015-08-23 08:39:58
○ 2015-12-12 20:34:56
○ 2026-03-08 06:18:02
●A156.234.192.422026-03-08 → 2026-03-08 · 3 obs
○ 2020-02-12 20:00:44
● 2026-03-08 01:17:38
● 2026-03-08 06:18:02
○A198.58.118.1672020-02-12 → 2020-02-12 · 4 obs
○ 2017-03-22 17:12:08
● 2020-02-12 20:00:44
○ 2026-03-08 01:17:38
○ 2026-03-08 06:18:02
○A45.33.2.792020-02-12 → 2020-02-12 · 4 obs
○ 2017-03-22 17:12:08
● 2020-02-12 20:00:44
○ 2026-03-08 01:17:38
○ 2026-03-08 06:18:02
○A45.33.23.1832020-02-12 → 2020-02-12 · 4 obs
○ 2017-03-22 17:12:08
● 2020-02-12 20:00:44
○ 2026-03-08 01:17:38
○ 2026-03-08 06:18:02
○A45.56.79.232020-02-12 → 2020-02-12 · 4 obs
○ 2017-03-22 17:12:08
● 2020-02-12 20:00:44
○ 2026-03-08 01:17:38
○ 2026-03-08 06:18:02
○A45.79.19.1962020-02-12 → 2020-02-12 · 4 obs
○ 2017-03-22 17:12:08
● 2020-02-12 20:00:44
○ 2026-03-08 01:17:38
○ 2026-03-08 06:18:02
○A50.117.113.2192017-03-22 → 2017-03-22 · 4 obs
○ 2016-07-24 14:43:00
● 2017-03-22 17:12:08
○ 2020-02-12 20:00:44
○ 2026-03-08 06:18:02
○A54.244.121.102015-08-23 → 2015-08-23 · 3 obs
● 2015-08-23 08:39:58
○ 2026-03-08 01:17:38
○ 2026-03-08 06:18:02
○A65.19.157.2002015-12-12 → 2016-03-27 · 5 obs
○ 2015-08-23 08:39:58
● 2015-12-12 20:34:56
● 2016-03-27 16:33:22
○ 2016-07-24 14:43:00
○ 2026-03-08 06:18:02
○A96.126.123.2442020-02-12 → 2020-02-12 · 4 obs
○ 2017-03-22 17:12:08
● 2020-02-12 20:00:44
○ 2026-03-08 01:17:38
○ 2026-03-08 06:18:02

🔍 DNS Trace

Analysis

IP Addresses

81study.com points to a single IP number: 156.234.192.42.

Other host names such as zjyingxiang.com.cn and cqcsq.com share IP numbers with 81study.com.

Name Servers

Delegation for 81study.com rests with two name servers, ns1.myhostadmin.net and ns2.myhostadmin.net.

81study.com shares the same name server setup as other domains, including baby0796.com, fpjsjc.cn, jlsfs.cn, saodog.cn and webniy.com.

81study.com at least partially shares name servers with other domains, for instance xiamantech.com, hsflower.com, cssxbzgd.com, ekca.cn and 686588.cn.

These name servers are commonly used together with the name servers ns4.myhostadmin.net, ns3.myhostadmin.net, ns5.myhostadmin.net, ns6.myhostadmin.net, ns1.363.hk, ns2.363.hk, ns3.363.hk, ns4.363.hk, ns5.363.hk and ns6.363.hk.

Host names with four IP numbers:

ns1.myhostadmin.net points to 240e:d9:c200::2, 60.247.150.254, 118.123.249.114 and 118.123.253.132

ns2.myhostadmin.net points to 240e:d9:c200:1::2, 61.172.183.73, 61.240.129.143 and 211.149.230.100