rfbi.cn - robtex.com
rfbi.cn
| DNSSEC | ⚠️ Not signed | ||||||
| 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=1769675175 | ||||||
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 ⚠️ Not in parent delegation | ||||||
| SOA | a.dns.cnroot@cnnic.cn 2035-04-23 #73 | ||||||
Same first word
Similar names
DNS History
7 records (4 active, 3 former)
●NSns1.judns.com2026-06-28 → 2026-07-15 · 3 obs
● 2026-06-28 01:25:44
● 2026-07-15 06:47:02
●NSns1.julydns.com2026-06-28 → 2026-07-15 · 3 obs
● 2026-06-28 01:25:44
● 2026-07-15 06:47:02
●NSns2.judns.com2026-06-28 → 2026-07-15 · 3 obs
● 2026-06-28 01:25:44
● 2026-07-15 06:47:02
●NSns2.julydns.com2026-06-28 → 2026-07-15 · 3 obs
● 2026-06-28 01:25:44
● 2026-07-15 06:47:02
○NSv1.mydomain1.com2017-11-15 → 2017-11-15 · 3 obs
○ 2026-06-28 01:25:44
○ 2026-07-15 06:47:02
○MXmail.rfbi.cn2017-11-15 → 2017-11-15 · 3 obs
○ 2026-06-28 01:25:44
○ 2026-07-15 06:47:02
○A23.225.226.1372017-11-15 → 2017-11-15 · 3 obs
○ 2026-06-28 01:25:44
○ 2026-07-15 06:47:02
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cn | a.dns.cn, b.dns.cn, c.dns.cn, d.dns.cn... | - |
| rfbi.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: 203.119.25.1 for DNSKEY cn
⏱️ Timing
Total: 3458ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| NS | 2 | ns1.julydns.com, ns2.julydns.com |
| SOA | 1 | ns1.julydns.com master.jmdns.com |
Analysis
Name Servers
The authoritative name servers for rfbi.cn are ns1.judns.com, ns2.judns.com, ns1.julydns.com and ns2.julydns.com.
There is at least partial name server overlap between rfbi.cn and other domains — zzlxrv.com, joinstudio.com.cn, qxcmhotel.com and two more among them.
These name servers frequently co-occur with the name servers ns1.onclouddns.com and ns2.onclouddns.com.
Four host names each point to one IP address: ns1.judns.com and ns2.judns.com both point to 162.159.27.251, and ns1.julydns.com and ns2.julydns.com both point to 162.159.48.223.
ns1.judns.com and ns2.judns.com are host names that each point to 162.159.27.251 IP addresses.
ns1.julydns.com and ns2.julydns.com are host names that each point to 162.159.48.223 IP addresses.