`jstdk.cn`

DNSSEC	⚠️ Not signed
NS	`ns1.judns.com` ⚠️ Not in zone NS records
		A	47.97.51.45^{🇨🇳 Alibaba-Cloud47.96.0.0/15 Aliyun Computing Co., LTD}
			PTR	`ip-47-97-51-45.defastlink.net`
NS	`ns1.julydns.com` ⚠️ Not in parent delegation
		A	47.97.51.45^{🇨🇳 Alibaba-Cloud47.96.0.0/15 Aliyun Computing Co., LTD}
			PTR	`ip-47-97-51-45.defastlink.net`
NS	`ns2.judns.com` ⚠️ Not in zone NS records
		A	162.159.27.251^{Cloudflare162.159.27.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ip-162-159-27-251.defastlink.net`
NS	`ns2.julydns.com` ⚠️ Not in parent delegation
		A	162.159.48.223^{Cloudflare162.159.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ip-162-159-48-223.defastlink.net`

`cn`

	DNSSEC	⚠️ Not signed
	NS	`a.dns.cn` ⭐
	NS	`b.dns.cn`
	NS	`c.dns.cn`
	NS	`d.dns.cn`
	NS	`e.dns.cn`
	NS	`ns.cernet.net` ⚠️ Not in parent delegation
	SOA	`a.dns.cn`root@cnnic.cn serial=2034546407

Same first word

jstdk.cn

Similar names

tdskj.com

kdsjt.com

tjkds.com

tjkds.com.cn

tsdkj.com

tkdsj.com

jsktd.de

tjksd.com

sdkjt.com

tdkjs.com

tjsdk.net

tjsdk.com

tksdj.com

tkdjs.com

tjsdk.cn

jsdkt.com

sjkdt.org

jtdks.com

stdkj.cn

DNS History

6 records (4 active, 2 former)

○NSns1.dns.com2017-03-22 → 2017-03-22 · 3 obs

● 2017-03-22 08:37:40
○ 2026-03-16 18:42:54
○ 2026-03-23 03:18:36

●NSns1.judns.com2026-03-16 → 2026-03-23 · 3 obs

○ 2017-03-22 08:37:40
● 2026-03-16 18:42:54
● 2026-03-23 03:18:36

●NSns1.julydns.com2026-03-16 → 2026-03-23 · 3 obs

○ 2017-03-22 08:37:40
● 2026-03-16 18:42:54
● 2026-03-23 03:18:36

●NSns2.judns.com2026-03-16 → 2026-03-23 · 3 obs

○ 2017-03-22 08:37:40
● 2026-03-16 18:42:54
● 2026-03-23 03:18:36

●NSns2.julydns.com2026-03-16 → 2026-03-23 · 3 obs

○ 2017-03-22 08:37:40
● 2026-03-16 18:42:54
● 2026-03-23 03:18:36

○A173.208.193.102017-03-22 → 2017-03-22 · 3 obs

● 2017-03-22 08:37:40
○ 2026-03-16 18:42:54
○ 2026-03-23 03:18:36

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
cn	a.dns.cn, b.dns.cn, c.dns.cn, d.dns.cn...	-
jstdk.cn	ns1.judns.com, ns2.judns.com	-

✅ Authoritative Response

Server:162.159.27.251

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for jstdk.cn (unsigned zone)

⏱️ Timing

Total: 1319ms | Queries: -

📄 Records

Type	Count	Sample Data
NS	2	`ns1.julydns.com, ns2.julydns.com`

Analysis

Name Servers

jstdk.cn is delegated to four name servers: ns1.judns.com, ns2.judns.com, ns1.julydns.com and ns2.julydns.com.

jstdk.cn shares name servers with other domains at least partially, for instance lejear.com, duokehaowu.com, 77fuye.com, ccteach.com and 2sms.cn.