studyok.com - dns.ninja

`studyok.com`

DNSSEC	⚠️ Not signed
NS	`dns.sharknames.com` ⚠️ Not in zone NS records
		A	192.161.163.150^{🇺🇸 COLOCROSSING192.161.163.0/24}
NS	`fastdns.sharknames.com` ⚠️ Not in zone NS records
		A	192.227.249.69^{🇺🇸 COLOCROSSING192.227.248.0/23}
			PTR	`192-227-249-69-host.colocrossing.com`
NS	`ns1.alidns.com` ⚠️ Not in zone NS records
		A	2408:4009:501::1^{🇨🇳 Alibaba-Cloud2408:4009:501::/48}
		A	39.96.153.45^{🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC}
		A	39.96.153.55^{🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC}
		A	47.118.199.205^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
		A	47.118.199.215^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
		A	120.76.107.45^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
		A	120.76.107.55^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
		A	139.224.142.115^{🇨🇳 Alibaba-Cloud139.224.128.0/17 China Internet Network Information Center Floor1, Building No.1 C/-Chinese Academy of Sciences 4, South 4th Street Haidian District,}
		A	139.224.142.125^{🇨🇳 Alibaba-Cloud139.224.128.0/17 China Internet Network Information Center Floor1, Building No.1 C/-Chinese Academy of Sciences 4, South 4th Street Haidian District,}
NS	`ns2.alidns.com` ⚠️ Not in zone NS records
		A	2408:4009:501::2^{🇨🇳 Alibaba-Cloud2408:4009:501::/48}
		A	39.96.153.46^{🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC}
		A	39.96.153.56^{🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC}
		A	47.118.199.206^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
		A	47.118.199.216^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
		A	120.76.107.46^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
		A	120.76.107.56^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
		A	139.224.142.116^{🇨🇳 Alibaba-Cloud139.224.128.0/17 China Internet Network Information Center Floor1, Building No.1 C/-Chinese Academy of Sciences 4, South 4th Street Haidian District,}
		A	139.224.142.126^{🇨🇳 Alibaba-Cloud139.224.128.0/17 China Internet Network Information Center Floor1, Building No.1 C/-Chinese Academy of Sciences 4, South 4th Street Haidian District,}
NS	`ns3.afternic.com` ⚠️ Not in zone NS records
		A	97.74.98.65^{🇺🇸 GODADDY-DNS97.74.98.0/23}
			PTR	`ns3.afternic.com`
NS	`opendns.sharknames.com` ⚠️ Not in zone NS records
		A	107.174.240.70^{🇺🇸 COLOCROSSING107.174.240.0/22 Proxy for Colocrossing Wowrack Customers}
			PTR	`107-174-240-70-host.colocrossing.com`
NS	`prodns.sharknames.com` ⚠️ Not in zone NS records
		A	172.245.79.147^{🇺🇸 COLOCROSSING172.245.78.0/23}
			PTR	`172-245-79-147-host.colocrossing.com`
NS	`smartdns.sharknames.com` ⚠️ Not in zone NS records
		A	192.227.209.8^{🇺🇸 COLOCROSSING192.227.208.0/21}
			PTR	`192-227-209-8-host.colocrossing.com`
TXT	`7WQVw8dCk03L9H9hNh`
TXT	`eeaec24e55c54b11bc07ae6a55b0de4a`
TXT	`4.cn-verify-97921`
TXT	`afternic-verification-6VusC7cQNjFLaPUksRVtiy`
TXT	`8573a79c532402041c034b4acc49bbc1`
TXT	`4aec7b26-b5e9-4807-b84f-52ac7b7037e5`
TXT	`domainov.aliyun.com`
TXT	`e6119f335f3fccdbdf639a4f78c675e76af91ed6`
TXT	`1f970a8fdeccd5167a3d8ca664a8927841bf21fd`

`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=1784964282

Same first word

studyok.com

Similar names

udosykt.ru

DNS History

24 records (8 active, 16 former)

●NSdns.sharknames.com2026-02-21 → 2026-07-25 · 3 obs

○ 2017-06-21 10:44:34
● 2026-02-21 10:24:14
● 2026-07-25 07:31:28

○NSdns25.hichina.com2026-05-03 → 2026-07-08 · 12 obs

○ 2026-04-09 20:25:24
● 2026-05-03 21:49:44
○ 2026-05-16 06:32:46
● 2026-05-17 23:50:14
○ 2026-05-22 03:12:58
○ 2026-05-24 23:07:44
● 2026-05-31 12:35:02
● 2026-06-13 03:03:48
○ 2026-06-18 00:33:44
● 2026-07-08 14:38:54
○ 2026-07-16 02:44:12
○ 2026-07-25 07:31:28

○NSdns26.hichina.com2026-05-17 → 2026-07-08 · 10 obs

○ 2026-05-16 06:32:46
● 2026-05-17 23:50:14
○ 2026-05-22 03:12:58
○ 2026-05-24 23:07:44
● 2026-05-31 12:35:02
● 2026-06-04 12:29:00
○ 2026-06-13 03:03:48
● 2026-07-08 14:38:54
○ 2026-07-16 02:44:12
○ 2026-07-25 07:31:28

●NSfastdns.sharknames.com2026-02-21 → 2026-07-25 · 3 obs

○ 2017-06-21 10:44:34
● 2026-02-21 10:24:14
● 2026-07-25 07:31:28

●NSns1.alidns.com2026-02-21 → 2026-07-25 · 3 obs

○ 2017-06-21 10:44:34
● 2026-02-21 10:24:14
● 2026-07-25 07:31:28

○NSns1.sedoparking.com2015-08-02 → 2016-09-07 · 4 obs

● 2015-08-02 06:34:42
● 2016-09-07 23:00:46
○ 2017-06-21 10:44:34
○ 2026-07-25 07:31:28

○NSns1650.ztomy.com2017-06-21 → 2017-06-21 · 4 obs

○ 2016-09-07 23:00:46
● 2017-06-21 10:44:34
○ 2026-02-21 10:24:14
○ 2026-07-25 07:31:28

●NSns2.alidns.com2026-02-21 → 2026-07-25 · 3 obs

○ 2017-06-21 10:44:34
● 2026-02-21 10:24:14
● 2026-07-25 07:31:28

○NSns2.sedoparking.com2015-08-02 → 2016-09-07 · 4 obs

● 2015-08-02 06:34:42
● 2016-09-07 23:00:46
○ 2017-06-21 10:44:34
○ 2026-07-25 07:31:28

○NSns2650.ztomy.com2017-06-21 → 2017-06-21 · 4 obs

○ 2016-09-07 23:00:46
● 2017-06-21 10:44:34
○ 2026-02-21 10:24:14
○ 2026-07-25 07:31:28

●NSns3.afternic.com2026-02-21 → 2026-07-25 · 3 obs

○ 2017-06-21 10:44:34
● 2026-02-21 10:24:14
● 2026-07-25 07:31:28

○NSns4.afternic.com2026-04-09 → 2026-07-23 · 9 obs

○ 2026-02-21 10:24:14
● 2026-04-09 20:25:24
○ 2026-05-03 21:49:44
○ 2026-05-22 03:12:58
● 2026-05-23 12:54:20
● 2026-05-24 23:07:44
○ 2026-05-31 12:35:02
● 2026-07-23 11:31:32
○ 2026-07-25 07:31:28

●NSopendns.sharknames.com2026-02-21 → 2026-07-25 · 3 obs

○ 2017-06-21 10:44:34
● 2026-02-21 10:24:14
● 2026-07-25 07:31:28

●NSprodns.sharknames.com2026-02-21 → 2026-07-25 · 3 obs

○ 2017-06-21 10:44:34
● 2026-02-21 10:24:14
● 2026-07-25 07:31:28

●NSsmartdns.sharknames.com2026-02-21 → 2026-07-25 · 3 obs

○ 2017-06-21 10:44:34
● 2026-02-21 10:24:14
● 2026-07-25 07:31:28

○MXlocalhost2016-09-07 → 2016-09-07 · 4 obs

○ 2016-03-14 15:33:04
● 2016-09-07 23:00:46
○ 2017-06-21 10:44:34
○ 2026-07-25 07:31:28

○MXmail.nickstel.com2015-08-02 → 2016-03-14 · 4 obs

● 2015-08-02 06:34:42
● 2016-03-14 15:33:04
○ 2016-09-07 23:00:46
○ 2026-07-25 07:31:28

○A13.248.169.482026-02-27 → 2026-07-16 · 14 obs

○ 2026-02-21 13:12:28
● 2026-02-27 16:25:10
● 2026-03-08 05:22:32
○ 2026-03-16 01:12:30
○ 2026-03-21 01:03:50
● 2026-04-09 20:25:24
○ 2026-05-03 21:49:44
○ 2026-05-24 23:07:44
● 2026-05-31 12:35:02
● 2026-06-18 00:33:44
○ 2026-07-03 03:11:26
● 2026-07-16 02:44:12
○ 2026-07-23 11:31:32
○ 2026-07-25 07:31:28

○A204.11.56.502017-06-21 → 2017-06-21 · 4 obs

○ 2016-09-07 23:00:46
● 2017-06-21 10:44:34
○ 2026-02-21 10:24:14
○ 2026-07-25 07:31:28

○A47.76.45.782026-02-21 → 2026-07-23 · 17 obs

○ 2017-06-21 10:44:34
● 2026-02-21 10:24:14
● 2026-02-21 13:12:28
○ 2026-02-27 16:25:10
○ 2026-03-08 05:22:32
● 2026-03-16 01:12:30
● 2026-03-17 23:38:28
○ 2026-03-21 01:03:50
○ 2026-05-03 21:49:44
● 2026-05-16 06:32:46
● 2026-05-24 23:07:44
○ 2026-05-31 12:35:02
○ 2026-06-18 00:33:44
● 2026-07-03 03:11:26
○ 2026-07-16 02:44:12
● 2026-07-23 11:31:32
○ 2026-07-25 07:31:28

○A72.52.4.1192015-08-02 → 2016-09-07 · 4 obs

● 2015-08-02 06:34:42
● 2016-09-07 23:00:46
○ 2017-06-21 10:44:34
○ 2026-07-25 07:31:28

○A76.223.54.1462026-02-27 → 2026-07-16 · 14 obs

○CNAMEparking.sharknames.com2026-02-21 → 2026-05-24 · 10 obs

● 2026-02-21 10:24:14
○ 2026-02-21 13:12:28
○ 2026-02-27 16:25:10
● 2026-03-08 05:22:32
● 2026-03-16 01:12:30
○ 2026-03-17 23:38:28
○ 2026-05-23 12:54:20
● 2026-05-24 23:07:44
○ 2026-05-31 12:35:02
○ 2026-07-25 07:31:28

○PTRns1650.ztomy.com2017-06-21 → 2017-06-21 · 3 obs

● 2017-06-21 10:44:34
○ 2026-02-21 10:24:14
○ 2026-07-25 07:31:28

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	l.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net...	-
studyok.com	ns3.afternic.com, ns1.alidns.com, ns2.alidns.com, dns.sharknames.com...	24 records

✅ Authoritative Response

Server:120.76.107.45

NS records: ns3.afternic.com, ns1.alidns.com, ns2.alidns.com, dns.sharknames.com, prodns.sharknames.com, fastdns.sharknames.com, opendns.sharknames.com, smartdns.sharknames.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for studyok.com (unsigned zone)

⏱️ Timing

Total: 472ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`13.248.169.48, 76.223.54.146`
MX	1	`. (pri: 0)`
TXT	9	`4aec7b26-b5e9-4807-b84f-52ac7b7037e5, afternic-verification-6VusC7cQNjFLaPUksR...`
SOA	1	`dns25.hichina.com hostmaster.hichina.com`

📌 Glue Records Collected

Total: 24

Out-of-bailiwick: 24 (ns3.afternic.com, ns1.alidns.com, ns1.alidns.com...)

Analysis

Name Servers

studyok.com is served by 8 authoritative name servers — among them ns3.afternic.com, ns1.alidns.com, ns2.alidns.com and 5 others.

At least some of studyok.com's name servers are shared with other domains, for example safezilla.com, plvp.cn, storebox.nl and two more.

These name servers tend to co-occur with dns.sharknames.com, fastdns.sharknames.com, opendns.sharknames.com and 7 other name servers in the same DNS delegations.

Host names with 9 IP numbers:

ns1.alidns.com resolves to 39.96.153.45, 39.96.153.55 and 47.118.199.205 among others, with 6 other IP addresses in total.

ns2.alidns.com resolves to 39.96.153.46, 39.96.153.56 and 47.118.199.206 among others, with 6 other IP addresses in total.

Host names pointing to a single IP address:

The hostname ns3.afternic.com resolves to 97.74.98.65.

The hostname dns.sharknames.com resolves to 192.161.163.150.

The hostname fastdns.sharknames.com resolves to 192.227.249.69.

The hostname opendns.sharknames.com resolves to 107.174.240.70.

The hostname prodns.sharknames.com resolves to 172.245.79.147.

The hostname smartdns.sharknames.com resolves to 192.227.209.8.