jmb2b.cn - robtex.com
jmb2b.cn
| DNSSEC | ⚠️ Not signed | ||||||
| A | 156.253.154.111🇬🇧 OWGELS-AS-AP156.253.144.0/20 Aresidc limited | ||||||
| NS | ns1.julydns.com ⭐ ⚠️ Not in parent delegation | ||||||
| A | 162.159.48.223Cloudflare162.159.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| NS | ns1.judns.com ⚠️ Not in zone NS records | ||||||
| A | 162.159.27.251Cloudflare162.159.27.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| NS | ns2.judns.com ⚠️ Not in zone NS records | ||||||
| A | 162.159.27.251Cloudflare162.159.27.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| NS | ns2.julydns.com ⚠️ Not in parent delegation | ||||||
| A | 162.159.48.223Cloudflare162.159.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| SOA | ns1.julydns.commaster@jmdns.com serial=1773549493 | ||||||
cn
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a.dns.cn ⭐ | ||||||
| NS | b.dns.cn | ||||||
| NS | c.dns.cn | ||||||
| NS | d.dns.cn | ||||||
| NS | e.dns.cn | ||||||
| NS | ns.cernet.net | ||||||
| SOA | a.dns.cnroot@cnnic.cn serial=2035065654 | ||||||
Same first word
jmb2b.cn |
DNS History
5 records (5 active, 0 former)
●NSns1.julydns.com2026-06-18 → 2026-07-20 · 2 obs
● 2026-07-20 13:44:24
●NSns2.julydns.com2026-06-18 → 2026-07-20 · 2 obs
● 2026-07-20 13:44:24
●A156.253.154.1112026-06-18 → 2026-07-20 · 2 obs
● 2026-07-20 13:44:24
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cn | e.dns.cn, a.dns.cn, c.dns.cn, d.dns.cn... | - |
| jmb2b.cn | ns1.judns.com, ns2.judns.com | - |
✅ Authoritative Response
Server:162.159.27.251
NS records: ns1.judns.com, ns2.judns.com
🔒 DNSSEC Status
❌ Bogus (DNSSEC validation failed)
Validation error at cn: Error: DNS query timeout: 203.119.29.1 for DNSKEY cn
⏱️ Timing
Total: 3436ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 156.253.154.111 |
| NS | 2 | ns1.julydns.com, ns2.julydns.com |
| SOA | 1 | ns1.julydns.com master.jmdns.com |
Analysis
IP Addresses
jmb2b.cn points to a single IP number: 156.253.154.111.
Other host names share IP numbers with jmb2b.cn; czhai.cn is one such example.
Name Servers
jmb2b.cn has four authoritative name servers: ns1.judns.com, ns2.judns.com, ns1.julydns.com and ns2.julydns.com.
The name servers of jmb2b.cn overlap at least partially with those of other domains — among them polysolar.com.cn, cxlengfengji.com, 2565999.com and two more.
These name servers commonly appear alongside the name servers ns1.onclouddns.com and ns2.onclouddns.com.
ns1.judns.com and ns2.judns.com each resolve to 162.159.27.251, while ns1.julydns.com and ns2.julydns.com each resolve to 162.159.48.223.
These two host names — ns1.judns.com and ns2.judns.com — each point to 162.159.27.251 IP addresses.
These two host names — ns1.julydns.com and ns2.julydns.com — each point to 162.159.48.223 IP addresses.