sdnmc.cn - robtex.com

sdnmc.cn

DNSSEC⚠️ Not signed
NSns1.judns.com ⚠️ Not in zone NS records
A162.159.27.251Cloudflare162.159.27.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
NSns1.julydns.com ⚠️ Not in parent delegation
A162.159.48.223Cloudflare162.159.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US
NSns2.judns.com ⚠️ Not in zone NS records
A162.159.27.251Cloudflare162.159.27.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
NSns2.julydns.com ⚠️ Not in parent delegation
A162.159.48.223Cloudflare162.159.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US

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=2034790027

Same first word

sdnmc.com
sdnmc.cn

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scmnd.cn
ndcms.cn
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DNS History

13 records (4 active, 9 former)

20162017201820192020202120222023202420252026NSns1.judns.comns1.julydns.comns2.judns.comns2.julydns.comce1.dns.comce2.dns.comns3.ce.net.cnMXmail.sdnmc.cnmail1.sdnmc.cnA106.187.51.202119.9.74.163121.14.65.216183.60.188.240
○NSce1.dns.com2020-12-17 → 2020-12-17 · 4 obs
○ 2017-02-18 20:18:34
● 2020-12-17 03:13:46
○ 2026-04-20 06:05:20
○ 2026-05-14 04:45:08
○NSce2.dns.com2020-12-17 → 2020-12-17 · 4 obs
○ 2017-02-18 20:18:34
● 2020-12-17 03:13:46
○ 2026-04-20 06:05:20
○ 2026-05-14 04:45:08
●NSns1.judns.com2026-04-20 → 2026-05-14 · 3 obs
○ 2020-12-17 03:13:46
● 2026-04-20 06:05:20
● 2026-05-14 04:45:08
●NSns1.julydns.com2026-04-20 → 2026-05-14 · 3 obs
○ 2020-12-17 03:13:46
● 2026-04-20 06:05:20
● 2026-05-14 04:45:08
●NSns2.judns.com2026-04-20 → 2026-05-14 · 3 obs
○ 2020-12-17 03:13:46
● 2026-04-20 06:05:20
● 2026-05-14 04:45:08
●NSns2.julydns.com2026-04-20 → 2026-05-14 · 3 obs
○ 2020-12-17 03:13:46
● 2026-04-20 06:05:20
● 2026-05-14 04:45:08
○NSns3.ce.net.cn2015-08-13 → 2017-02-18 · 4 obs
● 2015-08-13 19:10:06
● 2017-02-18 20:18:34
○ 2020-12-17 03:13:46
○ 2026-05-14 04:45:08
○MXmail.sdnmc.cn2015-08-13 → 2020-12-17 · 4 obs
● 2015-08-13 19:10:06
● 2020-12-17 03:13:46
○ 2026-04-20 06:05:20
○ 2026-05-14 04:45:08
○MXmail1.sdnmc.cn2015-08-13 → 2020-12-17 · 4 obs
● 2015-08-13 19:10:06
● 2020-12-17 03:13:46
○ 2026-04-20 06:05:20
○ 2026-05-14 04:45:08
○A106.187.51.2022016-07-17 → 2020-12-17 · 6 obs
○ 2015-12-08 19:04:54
● 2016-07-17 05:16:28
○ 2017-02-18 20:18:34
● 2020-12-17 03:13:46
○ 2026-04-20 06:05:20
○ 2026-05-14 04:45:08
○A119.9.74.1632017-02-18 → 2017-02-18 · 4 obs
○ 2016-07-17 05:16:28
● 2017-02-18 20:18:34
○ 2020-12-17 03:13:46
○ 2026-05-14 04:45:08
○A121.14.65.2162015-12-08 → 2015-12-08 · 4 obs
○ 2015-08-13 19:10:06
● 2015-12-08 19:04:54
○ 2016-07-17 05:16:28
○ 2026-05-14 04:45:08
○A183.60.188.2402015-08-13 → 2015-08-13 · 3 obs
● 2015-08-13 19:10:06
○ 2015-12-08 19:04:54
○ 2026-05-14 04:45:08

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
cnd.dns.cn, e.dns.cn, a.dns.cn, c.dns.cn...-
sdnmc.cnns1.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 sdnmc.cn (unsigned zone)

⏱️ Timing

Total: 3861ms | Queries: -

📄 Records

TypeCountSample Data
NS2ns1.julydns.com, ns2.julydns.com

Analysis

Name Servers

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

sdnmc.cn at least partially shares name servers with other domains such as chuguozixun.com, 51mdx.com.cn, eduid.com, yufankj.com and hkrmogzgida.com.

Hostnames with a single IP

ns1.judns.com resolves to 162.159.27.251

ns2.judns.com resolves to 162.159.27.251

ns1.julydns.com resolves to 162.159.48.223

ns2.julydns.com resolves to 162.159.48.223

Hostnames pointing to 162.159.27.251: ns1.judns.com and ns2.judns.com

Hostnames pointing to 162.159.48.223: ns1.julydns.com and ns2.julydns.com