bjtu.cn - robtex.com
bjtu.cn
| DNSSEC | ⚠️ Not signed | ||||||
| A | 43.160.235.235🇸🇬 TENCENT-NET-AP-CN43.160.224.0/20 ACEVILLE PTE.LTD. 16 COLLYER QUAY 18-29 INCOME AT RAFFLES | ||||||
| NS | ns1.huatian.net ⚠️ Not in zone NS records | ||||||
| A | 43.160.235.235🇸🇬 TENCENT-NET-AP-CN43.160.224.0/20 ACEVILLE PTE.LTD. 16 COLLYER QUAY 18-29 INCOME AT RAFFLES | ||||||
| NS | ns2.huatian.net ⚠️ Not in zone NS records | ||||||
| A | 43.160.235.235🇸🇬 TENCENT-NET-AP-CN43.160.224.0/20 ACEVILLE PTE.LTD. 16 COLLYER QUAY 18-29 INCOME AT RAFFLES | ||||||
| TXT | afternic-verification-BPXFMuEoswuEPMRq7K3qza | ||||||
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 2035-11-25 #39 | ||||||
Same first word
Similar names
DNS History
18 records (3 active, 15 former)
○NSdns1.iidns.com2016-07-14 → 2017-03-18 · 4 obs
● 2017-03-18 09:16:32
○ 2020-02-08 00:54:22
○ 2026-07-30 19:32:30
○NSdns2.iidns.com2016-07-14 → 2016-07-14 · 3 obs
○ 2017-03-18 09:16:32
○ 2026-07-30 19:32:30
○NSdns3.iidns.com2016-07-14 → 2016-07-14 · 3 obs
○ 2017-03-18 09:16:32
○ 2026-07-30 19:32:30
○NSdns4.iidns.com2016-07-14 → 2016-07-14 · 3 obs
○ 2017-03-18 09:16:32
○ 2026-07-30 19:32:30
○NSdns5.iidns.com2016-07-14 → 2016-07-14 · 3 obs
○ 2017-03-18 09:16:32
○ 2026-07-30 19:32:30
○NSdns6.iidns.com2016-07-14 → 2016-07-14 · 3 obs
○ 2017-03-18 09:16:32
○ 2026-07-30 19:32:30
●NSns1.huatian.net2026-05-27 → 2026-07-30 · 3 obs
● 2026-05-27 14:20:26
● 2026-07-30 19:32:30
●NSns2.huatian.net2026-05-27 → 2026-07-30 · 3 obs
● 2026-05-27 14:20:26
● 2026-07-30 19:32:30
○NSwww.bjtu.cn2020-02-08 → 2020-02-08 · 4 obs
● 2020-02-08 00:54:22
○ 2026-05-27 14:20:26
○ 2026-07-30 19:32:30
○A103.241.230.1352017-03-18 → 2017-03-18 · 4 obs
● 2017-03-18 09:16:32
○ 2020-02-08 00:54:22
○ 2026-07-30 19:32:30
○A103.241.230.1372017-03-18 → 2017-03-18 · 4 obs
● 2017-03-18 09:16:32
○ 2020-02-08 00:54:22
○ 2026-07-30 19:32:30
○A103.241.230.1382017-03-18 → 2017-03-18 · 4 obs
● 2017-03-18 09:16:32
○ 2020-02-08 00:54:22
○ 2026-07-30 19:32:30
○A103.241.230.1392017-03-18 → 2017-03-18 · 4 obs
● 2017-03-18 09:16:32
○ 2020-02-08 00:54:22
○ 2026-07-30 19:32:30
○A107.167.19.742016-07-14 → 2016-07-14 · 3 obs
○ 2017-03-18 09:16:32
○ 2026-07-30 19:32:30
○A107.167.19.752016-07-14 → 2016-07-14 · 3 obs
○ 2017-03-18 09:16:32
○ 2026-07-30 19:32:30
●A43.160.235.2352026-05-27 → 2026-07-30 · 5 obs
● 2026-05-27 14:20:26
○ 2026-06-17 12:32:44
● 2026-07-20 03:49:08
● 2026-07-30 19:32:30
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cn | a.dns.cn, b.dns.cn, c.dns.cn, d.dns.cn... | - |
| bjtu.cn | ns1.huatian.net, ns2.huatian.net | - |
✅ Authoritative Response
Server:43.160.235.235
NS records: ns1.huatian.net, ns2.huatian.net
🔒 DNSSEC Status
❌ Bogus (DNSSEC validation failed)
Validation error at bjtu.cn: Error: DNS query timeout: 203.119.25.1 for DS bjtu.cn
⏱️ Timing
Total: 4460ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 43.160.235.235 |
| TXT | 1 | afternic-verification-BPXFMuEoswuEPMRq7K |
Analysis
IP Addresses
bjtu.cn resolves to just one IP address, 43.160.235.235.
Two other host names, along with tuosu.cn, zerozone.cn and congqianman.com, also share IP numbers with bjtu.cn.
Name Servers
bjtu.cn uses two name servers for its delegation: ns1.huatian.net and ns2.huatian.net.
bjtu.cn shares its NS records with other domains, for example skytv.com.cn, ahbr.cn, delfino.cn and two others.
ns1.huatian.net resolves to 43.160.235.235; ns2.huatian.net resolves to the same IP address, 43.160.235.235.
Both ns1.huatian.net and ns2.huatian.net resolve to 43.160.235.235 IP addresses each.