itbbs.cn - robtex.com
itbbs.cn
| DNSSEC | ⚠️ Not signed | ||||||
| A | 39.105.113.150🇨🇳 Alibaba-Cloud39.104.0.0/15 CT BeiJing IDC | ||||||
| NS | dns1.hichina.com ⭐ | ||||||
| A | 2408:4009:501::9🇨🇳 Alibaba-Cloud2408:4009:501::/48 | ||||||
| A | 39.96.153.43🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC | ||||||
| A | 39.96.153.63🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC | ||||||
| A | 47.118.199.203🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd. | ||||||
| A | 47.118.199.213🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd. | ||||||
| A | 120.76.107.43🇨🇳 Alibaba-Cloud120.76.0.0/17 | ||||||
| A | 120.76.107.63🇨🇳 Alibaba-Cloud120.76.0.0/17 | ||||||
| A | 139.224.142.113🇨🇳 Alibaba-Cloud139.224.128.0/17 China Internet Network Information Center Floor1, Building No.1 C/-Chinese Academy of Sciences 4, South 4th Street Haidian District, | ||||||
| A | 139.224.142.123🇨🇳 Alibaba-Cloud139.224.128.0/17 China Internet Network Information Center Floor1, Building No.1 C/-Chinese Academy of Sciences 4, South 4th Street Haidian District, | ||||||
| NS | dns2.hichina.com | ||||||
| A | 2408:4009:501::10🇨🇳 Alibaba-Cloud2408:4009:501::/48 | ||||||
| A | 39.96.153.44🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC | ||||||
| A | 39.96.153.54🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC | ||||||
| A | 47.118.199.204🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd. | ||||||
| A | 47.118.199.214🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd. | ||||||
| A | 120.76.107.44🇨🇳 Alibaba-Cloud120.76.0.0/17 | ||||||
| A | 120.76.107.54🇨🇳 Alibaba-Cloud120.76.0.0/17 | ||||||
| A | 139.224.142.114🇨🇳 Alibaba-Cloud139.224.128.0/17 China Internet Network Information Center Floor1, Building No.1 C/-Chinese Academy of Sciences 4, South 4th Street Haidian District, | ||||||
| A | 139.224.142.124🇨🇳 Alibaba-Cloud139.224.128.0/17 China Internet Network Information Center Floor1, Building No.1 C/-Chinese Academy of Sciences 4, South 4th Street Haidian District, | ||||||
| SOA | dns1.hichina.comhostmaster@hichina.com 2026-01-12 #9 | ||||||
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=2034622237 | ||||||
Subdomains
community.itbbs.cn |
www.itbbs.cn |
Same first word
Similar names
DNS History
9 records (3 active, 6 former)
○NSdns.bizcn.com2017-01-31 → 2018-12-20 · 5 obs
● 2017-01-31 12:59:22
● 2018-12-20 10:04:42
○ 2026-03-31 16:37:18
○ 2026-04-01 18:15:06
●NSdns1.hichina.com2026-03-31 → 2026-04-01 · 3 obs
● 2026-03-31 16:37:18
● 2026-04-01 18:15:06
●NSdns2.hichina.com2026-03-31 → 2026-04-01 · 3 obs
● 2026-03-31 16:37:18
● 2026-04-01 18:15:06
○NSns1.dns.com.cn2008-12-10 → 2018-12-20 · 4 obs
● 2018-12-20 10:04:42
○ 2026-03-31 16:37:18
○ 2026-04-01 18:15:06
○NSns2.dns.com.cn2008-12-10 → 2018-12-20 · 6 obs
● 2016-07-16 14:30:38
○ 2017-01-31 12:59:22
● 2018-12-20 10:04:42
○ 2026-03-31 16:37:18
○ 2026-04-01 18:15:06
○MX365484123.pamx1.hotmail.com2008-12-10 → 2018-12-20 · 4 obs
● 2018-12-20 10:04:42
○ 2026-03-31 16:37:18
○ 2026-04-01 18:15:06
○A106.185.43.912015-07-23 → 2018-12-20 · 5 obs
● 2015-07-23 22:15:04
● 2018-12-20 10:04:42
○ 2026-03-31 16:37:18
○ 2026-04-01 18:15:06
○A221.130.195.1972008-12-10 → 2008-12-10 · 3 obs
○ 2015-07-23 22:15:04
○ 2026-04-01 18:15:06
●A39.105.113.1502026-03-31 → 2026-04-01 · 3 obs
● 2026-03-31 16:37:18
● 2026-04-01 18:15:06
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cn | c.dns.cn, d.dns.cn, e.dns.cn, a.dns.cn... | - |
| itbbs.cn | dns1.hichina.com, dns2.hichina.com | - |
✅ Authoritative Response
Server:47.118.199.213
NS records: dns1.hichina.com, dns2.hichina.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for itbbs.cn (unsigned zone)
⏱️ Timing
Total: 1337ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 39.105.113.150 |
| NS | 2 | dns2.hichina.com, dns1.hichina.com |
| SOA | 1 | dns1.hichina.com hostmaster.hichina.com |
Analysis
Hierarchy
itbbs.cn is parent of community.itbbs.cn and www.itbbs.cn.
IP Addresses
itbbs.cn points to a single IP: 39.105.113.150.
Other host names such as community.itbbs.cn and www.itbbs.cn share IP numbers with itbbs.cn.
Name Servers
itbbs.cn's delegation is to two name servers dns1.hichina.com and dns2.hichina.com.
itbbs.cn shares the same name server configuration as other domains, such as rpt.cc, jema.cn, crat.cn, ladtelecom.com and bocady.com.
itbbs.cn at least partially shares its name servers with other domains, for instance rfzj.cn, yyclub.org, zazsb.com, hbxmn.com and zrxx.com.cn.
these name servers are commonly used together with expirens3.hichina.com, expirens4.hichina.com, ns7.alidns.com and ns8.alidns.com.
Host names with nine IP numbers: dns1.hichina.com points to 2408:4009:501::9, 39.96.153.43, 39.96.153.63, 47.118.199.203, 47.118.199.213, 120.76.107.43, 120.76.107.63, 139.224.142.113 and 139.224.142.123; dns2.hichina.com points to 2408:4009:501::10, 39.96.153.44, 39.96.153.54, 47.118.199.204, 47.118.199.214, 120.76.107.44, 120.76.107.54, 139.224.142.114 and 139.224.142.124.