51cmexpo.com - robtex.com

51cmexpo.com

DNSSEC⚠️ Not signed
A156.225.158.203🇭🇰 HKIDC-AS-AP156.225.144.0/20 Shenzhen Jizhan Technology Co., Ltd.
NSns1.julydns.com ⭐ ⚠️ Not in parent delegation
A162.159.48.223Cloudflare162.159.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US
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
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
SOAns1.julydns.commaster@jmdns.com serial=1751267148

com

DNSSEC🔒 Signed (DS record present)
NSa.gtld-servers.net ⭐
NSb.gtld-servers.net
NSc.gtld-servers.net
NSd.gtld-servers.net
NSe.gtld-servers.net
NSf.gtld-servers.net
NSg.gtld-servers.net
NSh.gtld-servers.net
NSi.gtld-servers.net
NSj.gtld-servers.net
NSk.gtld-servers.net
NSl.gtld-servers.net
NSm.gtld-servers.net
SOAa.gtld-servers.netnstld@verisign-grs.com serial=1778511391

Same first word

51cmexpo.com

DNS History

9 records (5 active, 4 former)

20162017201820192020202120222023202420252026NSns1.judns.comns1.julydns.comns2.judns.comns2.julydns.comns11.xincache.comns12.xincache.comns17.xincache.comns18.xincache.comA156.225.158.203
●NSns1.judns.com2026-03-05 → 2026-05-11 · 3 obs
○ 2016-12-28 08:13:22
● 2026-03-05 10:28:08
● 2026-05-11 15:15:20
●NSns1.julydns.com2026-03-05 → 2026-05-11 · 3 obs
○ 2016-12-28 08:13:22
● 2026-03-05 10:28:08
● 2026-05-11 15:15:20
○NSns11.xincache.com2015-06-13 → 2015-06-13 · 3 obs
● 2015-06-13 23:03:40
○ 2015-10-31 20:17:02
○ 2026-05-11 15:15:20
○NSns12.xincache.com2015-06-13 → 2015-06-13 · 3 obs
● 2015-06-13 23:03:40
○ 2015-10-31 20:17:02
○ 2026-05-11 15:15:20
○NSns17.xincache.com2015-10-31 → 2016-12-28 · 5 obs
○ 2015-06-13 23:03:40
● 2015-10-31 20:17:02
● 2016-12-28 08:13:22
○ 2026-03-05 10:28:08
○ 2026-05-11 15:15:20
○NSns18.xincache.com2015-10-31 → 2016-12-28 · 5 obs
○ 2015-06-13 23:03:40
● 2015-10-31 20:17:02
● 2016-12-28 08:13:22
○ 2026-03-05 10:28:08
○ 2026-05-11 15:15:20
●NSns2.judns.com2026-03-05 → 2026-05-11 · 3 obs
○ 2016-12-28 08:13:22
● 2026-03-05 10:28:08
● 2026-05-11 15:15:20
●NSns2.julydns.com2026-03-05 → 2026-05-11 · 3 obs
○ 2016-12-28 08:13:22
● 2026-03-05 10:28:08
● 2026-05-11 15:15:20
●A156.225.158.2032026-03-05 → 2026-05-11 · 2 obs
● 2026-03-05 10:28:08
● 2026-05-11 15:15:20

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
coma.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...-
51cmexpo.comns1.judns.com, ns2.judns.com2 records

✅ Authoritative Response

Server:162.159.27.251

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for 51cmexpo.com (unsigned zone)

⏱️ Timing

Total: 184ms | Queries: -

📄 Records

TypeCountSample Data
A1156.225.158.203
NS2ns1.julydns.com, ns2.julydns.com
SOA1ns1.julydns.com master.jmdns.com

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns1.judns.com, ns2.judns.com)

Analysis

IP Addresses

51cmexpo.com maps to IP address 156.225.158.203.

Other host names for instance szmeiyuan.com and www.szmeiyuan.com share IP numbers with 51cmexpo.com.

Name Servers

51cmexpo.com is delegated to four name servers: ns1.judns.com, ns2.judns.com, ns1.julydns.com and ns2.julydns.com.

51cmexpo.com at least partially shares name servers with other domains such as zg-zd.com, gszph.com, whrsj.com, coupons-rain.com and 26sdgr54.cn.

These name servers are commonly used with ns1.onclouddns.com, ns2.onclouddns.com, jm1.dns.com and jm2.dns.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