rdtb.cn - robtex.com
rdtb.cn
| DNSSEC | ⚠️ Not signed | ||||||
| A | 43.155.33.243🇭🇰 TENCENT-NET-AP-CN43.155.0.0/18 ACEVILLE PTE.LTD. 16 COLLYER QUAY 18-29 INCOME AT RAFFLES | ||||||
| NS | ns1.julydns.com ⭐ ⚠️ Not in parent delegation | ||||||
| A | 47.97.51.45🇨🇳 Alibaba-Cloud47.96.0.0/15 Aliyun Computing Co., LTD | ||||||
| NS | ns1.judns.com ⚠️ Not in zone NS records | ||||||
| A | 47.97.51.45🇨🇳 Alibaba-Cloud47.96.0.0/15 Aliyun Computing Co., LTD | ||||||
| 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=1748330742 | ||||||
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 serial=2034598322 | ||||||
Previously NS for
rdtb.cn |
Same first word
Similar names
DNS History
9 records (5 active, 4 former)
○NSns1.alidns.com2015-11-04 → 2015-11-04 · 4 obs
● 2015-11-04 02:43:54
○ 2026-03-27 04:05:58
○ 2026-03-28 10:20:32
●NSns1.judns.com2026-03-27 → 2026-03-28 · 3 obs
● 2026-03-27 04:05:58
● 2026-03-28 10:20:32
●NSns1.julydns.com2026-03-27 → 2026-03-28 · 3 obs
● 2026-03-27 04:05:58
● 2026-03-28 10:20:32
○NSns2.alidns.com2015-11-04 → 2015-11-04 · 4 obs
● 2015-11-04 02:43:54
○ 2026-03-27 04:05:58
○ 2026-03-28 10:20:32
●NSns2.judns.com2026-03-27 → 2026-03-28 · 3 obs
● 2026-03-27 04:05:58
● 2026-03-28 10:20:32
●NSns2.julydns.com2026-03-27 → 2026-03-28 · 3 obs
● 2026-03-27 04:05:58
● 2026-03-28 10:20:32
○NSrdtb.cn2015-06-13 → 2015-06-13 · 3 obs
○ 2015-11-04 02:43:54
○ 2026-03-28 10:20:32
○A174.139.207.1782015-06-13 → 2015-06-13 · 3 obs
○ 2015-11-04 02:43:54
○ 2026-03-28 10:20:32
●A43.155.33.2432026-03-27 → 2026-03-28 · 3 obs
● 2026-03-27 04:05:58
● 2026-03-28 10:20:32
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cn | a.dns.cn, b.dns.cn, c.dns.cn, d.dns.cn... | - |
| rdtb.cn | ns1.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 rdtb.cn (unsigned zone)
⏱️ Timing
Total: 3551ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 43.155.33.243 |
| NS | 2 | ns1.julydns.com, ns2.julydns.com |
| SOA | 1 | ns1.julydns.com master.jmdns.com |
Analysis
IP Addresses
rdtb.cn resolves to one IP number: 43.155.33.243.
other host names including kzcz.cn, frtt.cn, xprq.cn, trkl.cn and wwnb.cn share IP numbers with rdtb.cn.
Name Servers
rdtb.cn is delegated to four name servers: ns1.judns.com, ns2.judns.com, ns1.julydns.com and ns2.julydns.com.
rdtb.cn at least partially shares name servers with other domains, for instance zhgang.com, bsznai.com, huaxiayijie.com, 99shengfa.com and xcclove.com.
These name servers are commonly used alongside jm1.dns.com and jm2.dns.com.
Host names with one IP:
ns1.judns.com points to 47.97.51.45
ns2.judns.com points to 162.159.27.251
ns1.julydns.com points to 47.97.51.45
ns2.julydns.com points to 162.159.48.223
Host names that point to 47.97.51.45: ns1.judns.com and ns1.julydns.com