sdstudent.cn - robtex.com

sdstudent.cn

DNSSEC⚠️ Not signed
A149.120.201.4🇨🇦 AS398478149.120.200.0/21 PEG TECH INC
NSa7.share-dns.com ⭐ ⚠️ Not in parent delegation
A172.64.53.25🇺🇸 Cloudflare172.64.53.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
NSa.share-dns.com ⚠️ Not in zone NS records
A172.64.53.25🇺🇸 Cloudflare172.64.53.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
NSb.share-dns.net ⚠️ Not in zone NS records
A172.64.52.239🇺🇸 Cloudflare172.64.52.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
NSb7.share-dns.net ⚠️ Not in parent delegation
A172.64.52.239🇺🇸 Cloudflare172.64.52.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
SOAa.share-dns.commaster@share-dns.com serial=1763541525

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=2034617316

Same first word

sdstudent.cn

DNS History

9 records (5 active, 4 former)

20162017201820192020202120222023202420252026NSa.share-dns.coma7.share-dns.comb.share-dns.netb7.share-dns.netns1.alidns.comns2.alidns.comA149.120.201.4103.232.215.129124.16.31.152
●NSa.share-dns.com2026-03-03 → 2026-03-31 · 3 obs
○ 2017-01-19 20:41:04
● 2026-03-03 03:07:40
● 2026-03-31 17:03:50
●NSa7.share-dns.com2026-03-03 → 2026-03-31 · 3 obs
○ 2017-01-19 20:41:04
● 2026-03-03 03:07:40
● 2026-03-31 17:03:50
●NSb.share-dns.net2026-03-03 → 2026-03-31 · 3 obs
○ 2017-01-19 20:41:04
● 2026-03-03 03:07:40
● 2026-03-31 17:03:50
●NSb7.share-dns.net2026-03-03 → 2026-03-31 · 3 obs
○ 2017-01-19 20:41:04
● 2026-03-03 03:07:40
● 2026-03-31 17:03:50
○NSns1.alidns.com2015-08-07 → 2017-01-19 · 4 obs
● 2015-08-07 21:20:38
● 2017-01-19 20:41:04
○ 2026-03-03 03:07:40
○ 2026-03-31 17:03:50
○NSns2.alidns.com2015-08-07 → 2017-01-19 · 4 obs
● 2015-08-07 21:20:38
● 2017-01-19 20:41:04
○ 2026-03-03 03:07:40
○ 2026-03-31 17:03:50
○A103.232.215.1292018-07-12 → 2018-07-12 · 4 obs
○ 2017-01-19 20:41:04
● 2018-07-12 04:53:36
○ 2026-03-03 03:07:40
○ 2026-03-31 17:03:50
○A124.16.31.1522015-08-07 → 2017-01-19 · 4 obs
● 2015-08-07 21:20:38
● 2017-01-19 20:41:04
○ 2018-07-12 04:53:36
○ 2026-03-31 17:03:50
●A149.120.201.42026-03-03 → 2026-03-31 · 3 obs
○ 2018-07-12 04:53:36
● 2026-03-03 03:07:40
● 2026-03-31 17:03:50

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
cnb.dns.cn, a.dns.cn, e.dns.cn, c.dns.cn...-
sdstudent.cna7.share-dns.com, b7.share-dns.net-

✅ Authoritative Response

Server:172.64.53.25

NS records: a7.share-dns.com, b7.share-dns.net

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for sdstudent.cn (unsigned zone)

⏱️ Timing

Total: 279ms | Queries: -

📄 Records

TypeCountSample Data
A1149.120.201.4
NS2a.share-dns.com, b.share-dns.net
SOA1a.share-dns.com master.share-dns.com

Analysis

IP Addresses

sdstudent.cn points to an IP address: 149.120.201.4.

Name Servers

sdstudent.cn delegates to four name servers: a7.share-dns.com, a.share-dns.com, b7.share-dns.net and b.share-dns.net.

sdstudent.cn at least partially shares name servers with other domains, for instance ljmzgyy.com, znjyseed.com, biocalibre.com, purisvlan.top and f1bc5f29719dd84d.com.

these name servers are commonly used with a10.share-dns.com, b10.share-dns.net, a5.share-dns.com, b5.share-dns.net, a3.share-dns.com, b3.share-dns.net, a11.share-dns.com, b11.share-dns.net, a4.share-dns.com and b4.share-dns.net.

Hostnames with one IP:

a7.share-dns.com resolves to 172.64.53.25.

a.share-dns.com resolves to 172.64.53.25.

b7.share-dns.net resolves to 172.64.52.239.

b.share-dns.net resolves to 172.64.52.239.

Hostnames resolving to 172.64.53.25: a7.share-dns.com and a.share-dns.com.

Hostnames resolving to 172.64.52.239: b7.share-dns.net and b.share-dns.net.