entstudy.com - dns.ninja

`entstudy.com`

DNSSEC	⚠️ Not signed
A	123.56.251.139^{🇨🇳 Alibaba-Cloud123.56.0.0/16 Alibaba (US) Technology Co., Ltd.}
NS	`vip3.alidns.com` ⭐
		A	2408:4009:500::3^{🇨🇳 Alibaba-Cloud2408:4009:500::/48 Alibaba Group}
		A	8.212.93.3^{🇭🇰 Alibaba_Cloud_SEC8.212.93.0/24 Alibaba.com Singapore E-Commerce Private Limited 8 Shenton Way, 45-01 AXA Tower, Singapore 068811}
		A	140.205.1.5^{🇨🇳 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,}
		A	170.33.32.210^{🇸🇬 Alibaba_Cloud_SEC170.33.32.0/24 Alibaba.com Singapore E-Commerce Private Limited 8 Shenton Way, 45-01 AXA Tower, Singapore 068811}
		A	170.33.40.136^{🇸🇬 Alibaba_Cloud_SEC170.33.40.0/24 Alibaba.com Singapore E-Commerce Private Limited 8 Shenton Way, 45-01 AXA Tower, Singapore 068811}
		A	170.33.73.26^{🇸🇬 Alibaba_Cloud_SEC170.33.73.0/24 Alibaba.com Singapore E-Commerce Private Limited 8 Shenton Way, 45-01 AXA Tower, Singapore 068811}
		A	170.33.80.10^{🇸🇬 Alibaba_Cloud_SEC170.33.80.0/24 Alibaba.com Singapore E-Commerce Private Limited 8 Shenton Way, 45-01 AXA Tower, Singapore 068811}
NS	`vip4.alidns.com`
		A	2408:4009:500::4^{🇨🇳 Alibaba-Cloud2408:4009:500::/48 Alibaba Group}
		A	8.212.93.4^{🇭🇰 Alibaba_Cloud_SEC8.212.93.0/24 Alibaba.com Singapore E-Commerce Private Limited 8 Shenton Way, 45-01 AXA Tower, Singapore 068811}
		A	140.205.1.6^{🇨🇳 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,}
		A	170.33.32.211^{🇸🇬 Alibaba_Cloud_SEC170.33.32.0/24 Alibaba.com Singapore E-Commerce Private Limited 8 Shenton Way, 45-01 AXA Tower, Singapore 068811}
		A	170.33.40.137^{🇸🇬 Alibaba_Cloud_SEC170.33.40.0/24 Alibaba.com Singapore E-Commerce Private Limited 8 Shenton Way, 45-01 AXA Tower, Singapore 068811}
		A	170.33.73.27^{🇸🇬 Alibaba_Cloud_SEC170.33.73.0/24 Alibaba.com Singapore E-Commerce Private Limited 8 Shenton Way, 45-01 AXA Tower, Singapore 068811}
		A	170.33.80.11^{🇸🇬 Alibaba_Cloud_SEC170.33.80.0/24 Alibaba.com Singapore E-Commerce Private Limited 8 Shenton Way, 45-01 AXA Tower, Singapore 068811}
MX	`mxbiz1.qq.com` ⭐
MX	`mxbiz2.qq.com`⁽¹⁰⁾
TXT	`v=spf1 include:spf.mail.qq.com ~all`
SOA	`vip3.alidns.com`hostmaster@hichina.com 2013-10-10 #13

`com`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a.gtld-servers.net` ⭐
	NS	`b.gtld-servers.net`
	NS	`c.gtld-servers.net`
	NS	`d.gtld-servers.net`
	NS	`e.gtld-servers.net`
	NS	`f.gtld-servers.net`
	NS	`g.gtld-servers.net`
	NS	`h.gtld-servers.net`
	NS	`i.gtld-servers.net`
	NS	`j.gtld-servers.net`
	NS	`k.gtld-servers.net`
	NS	`l.gtld-servers.net`
	NS	`m.gtld-servers.net`
	SOA	`a.gtld-servers.net`nstld@verisign-grs.com serial=1785349762

Subdomains

cdn.entstudy.com

log.entstudy.com

Same first word

entstudy.com

Similar names

netstudy.com

studynet.cz

studenty.org

studenty.co.uk

studynet.de

studynet.jp

studenty.org.za

studynet.ru

studynet.co

DNS History

8 records (5 active, 3 former)

○NSdns17.hichina.com2015-06-10 → 2026-02-21 · 4 obs

● 2015-06-10 22:48:22
● 2026-02-21 18:52:32
○ 2026-07-08 13:28:26
○ 2026-07-29 18:55:26

○NSdns18.hichina.com2015-06-10 → 2026-02-21 · 4 obs

● 2015-06-10 22:48:22
● 2026-02-21 18:52:32
○ 2026-07-08 13:28:26
○ 2026-07-29 18:55:26

●NSvip3.alidns.com2026-07-08 → 2026-07-29 · 3 obs

○ 2026-02-21 18:52:32
● 2026-07-08 13:28:26
● 2026-07-29 18:55:26

●NSvip4.alidns.com2026-07-08 → 2026-07-29 · 3 obs

○ 2026-02-21 18:52:32
● 2026-07-08 13:28:26
● 2026-07-29 18:55:26

●MXmxbiz1.qq.com2015-06-10 → 2026-07-29 · 2 obs

● 2015-06-10 22:48:22
● 2026-07-29 18:55:26

●MXmxbiz2.qq.com2015-06-10 → 2026-07-29 · 2 obs

● 2015-06-10 22:48:22
● 2026-07-29 18:55:26

●A123.56.251.1392026-02-14 → 2026-07-29 · 3 obs

○ 2019-03-23 09:20:42
● 2026-02-14 16:28:46
● 2026-07-29 18:55:26

○A61.151.241.82015-06-10 → 2019-03-23 · 4 obs

● 2015-06-10 22:48:22
● 2019-03-23 09:20:42
○ 2026-02-14 16:28:46
○ 2026-07-29 18:55:26

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	c.gtld-servers.net, a.gtld-servers.net, h.gtld-servers.net, m.gtld-servers.net...	-
entstudy.com	vip3.alidns.com, vip4.alidns.com	22 records

✅ Authoritative Response

Server:121.40.6.164

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for entstudy.com (unsigned zone)

⏱️ Timing

Total: 1394ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`123.56.251.139`
NS	2	`vip4.alidns.com, vip3.alidns.com`
MX	2	`mxbiz1.qq.com (pri: 5), mxbiz2.qq.com (pri: 10)`
TXT	1	`v=spf1 include:spf.mail.qq.com ~all`
SOA	1	`vip3.alidns.com hostmaster.hichina.com`

📌 Glue Records Collected

Total: 22

Out-of-bailiwick: 22 (vip3.alidns.com, vip3.alidns.com, vip3.alidns.com...)

Analysis

Hierarchy

cdn.entstudy.com and log.entstudy.com are both subdomains of entstudy.com.

IP Addresses

entstudy.com resolves to one IP address: 123.56.251.139.

fkls.com, www.klxuexi.com, klmfs.com and two other host names share IP numbers with entstudy.com.

Name Servers

Two name servers handle the delegation for entstudy.com: vip3.alidns.com and vip4.alidns.com.

entstudy.com uses the same name servers as several other domains — among them acwing.com, biyue.tech, qookkagames.jp and two more.

The name servers of entstudy.com overlap at least partially with those of other domains — among them huyahaiwan.com, zhiyun-tech.com, xqppt.com and two more.

These name servers commonly co-occur with the name servers vip1.alidns.com, vip2.alidns.com, ns1.huyatvns.com and ns2.huyatvns.com.

Hostnames that resolve to 7 IP addresses:

vip3.alidns.com resolves to 8.212.93.3, 140.205.1.5 and 170.33.32.210 among others, with 4 other IP addresses in total.

vip4.alidns.com resolves to 8.212.93.4, 140.205.1.6 and 170.33.32.211 among others, with 4 other IP addresses in total.

Mail Servers

Mail for entstudy.com is handled by two mail servers — mxbiz1.qq.com and mxbiz2.qq.com.

entstudy.com uses an identical mail server configuration to several other domains — among them hzafl.com, magers.cn, chinatfp.com and two more.

entstudy.com has at least partial mail server overlap with other domains such as ezpro.pro, xyt365.net, jiahewushe.com and two more.