bb2u.com.cn - robtex.com
bb2u.com.cn
| DNSSEC | ⚠️ Not signed | ||||||
| A | 154.80.244.216🇭🇰 DXTL-HK154.80.240.0/20 Proxy-registered route object | ||||||
| NS | ns1.nowcndns.com ⭐ | ||||||
| A | 1.193.216.204🇨🇳 CHINANET-Henan-Luoyang-IDC1.193.216.0/24 Chinatelecom HeNan Province Network | ||||||
| A | 218.98.111.129🇩🇪 HKCICL-AS-AP218.98.111.0/24 HONG KONG COMMUNICATIONS INTERNATIONAL CO.,LIMITED | ||||||
| A | 218.98.111.138🇩🇪 HKCICL-AS-AP218.98.111.0/24 HONG KONG COMMUNICATIONS INTERNATIONAL CO.,LIMITED | ||||||
| NS | ns2.nowcndns.com | ||||||
| A | 61.158.128.11🇨🇳 CHINA169-Backbone61.158.128.0/17 CNC Group CHINA169 Henan Province Network | ||||||
| PTR | 11.128.158.61.ha.cnc | ||||||
| A | 183.253.57.202🇨🇳 CHINAMOBILE-CN183.253.0.0/16 CMI (Customer Route) | ||||||
| A | 211.99.99.38🇨🇳 DONGGUAN-1211.99.99.0/24 Proxy-registered route object | ||||||
| SOA | ns1.nowcndns.comadmin@nowcndns.com serial=1774790565 | ||||||
com.cn
| DNSSEC | ⚠️ Not signed | ||||||
| NS | a.dns.cn ⭐ ⚠️ Not in parent delegation | ||||||
| NS | b.dns.cn ⚠️ Not in parent delegation | ||||||
| NS | c.dns.cn ⚠️ Not in parent delegation | ||||||
| NS | cns.cernet.net ⚠️ Not in parent delegation | ||||||
| NS | d.dns.cn ⚠️ Not in parent delegation | ||||||
| NS | e.dns.cn ⚠️ Not in parent delegation | ||||||
| SOA | a.dns.cnroot@cnnic.cn serial=2030560457 | ||||||
Subdomains
mail.bb2u.com.cn |
Same first word
Similar names
bub2.com |
2ubb.com |
ub2b.cn |
ub2b.com.mx |
bu2b.us |
bub2.wmcloud.org |
ub2b.ru |
b2bu.ru |
ub2b.net |
ub2b.com |
u2bb.com |
bu2b.de |
DNS History
15 records (3 active, 12 former)
○NSdns10.hichina.com2015-06-17 → 2016-01-29 · 4 obs
● 2015-06-17 09:45:04
● 2016-01-29 02:45:12
○ 2017-01-03 00:31:02
○ 2026-05-10 21:04:40
● 2016-01-29 02:45:12
○ 2017-01-03 00:31:02
○ 2026-05-10 21:04:40
○NSdns9.hichina.com2015-06-17 → 2016-01-29 · 4 obs
● 2015-06-17 09:45:04
● 2016-01-29 02:45:12
○ 2017-01-03 00:31:02
○ 2026-05-10 21:04:40
● 2016-01-29 02:45:12
○ 2017-01-03 00:31:02
○ 2026-05-10 21:04:40
○NSjuming.dnsdun.com2017-08-21 → 2018-08-24 · 5 obs
○ 2017-01-03 00:31:02
● 2017-08-21 01:49:58
● 2018-08-24 06:27:52
○ 2026-02-15 10:06:18
○ 2026-05-10 21:04:40
● 2017-08-21 01:49:58
● 2018-08-24 06:27:52
○ 2026-02-15 10:06:18
○ 2026-05-10 21:04:40
○NSjuming.dnsdun.net2017-08-21 → 2018-08-24 · 5 obs
○ 2017-01-03 00:31:02
● 2017-08-21 01:49:58
● 2018-08-24 06:27:52
○ 2026-02-15 10:06:18
○ 2026-05-10 21:04:40
● 2017-08-21 01:49:58
● 2018-08-24 06:27:52
○ 2026-02-15 10:06:18
○ 2026-05-10 21:04:40
○NSns1.ezdnscenter.com2017-01-03 → 2017-01-03 · 4 obs
○ 2016-01-29 02:45:12
● 2017-01-03 00:31:02
○ 2017-08-21 01:49:58
○ 2026-05-10 21:04:40
● 2017-01-03 00:31:02
○ 2017-08-21 01:49:58
○ 2026-05-10 21:04:40
●NSns1.nowcndns.com2026-02-15 → 2026-05-10 · 3 obs
○ 2018-08-24 06:27:52
● 2026-02-15 10:06:18
● 2026-05-10 21:04:40
● 2026-02-15 10:06:18
● 2026-05-10 21:04:40
○NSns2.ezdnscenter.com2017-01-03 → 2017-01-03 · 4 obs
○ 2016-01-29 02:45:12
● 2017-01-03 00:31:02
○ 2017-08-21 01:49:58
○ 2026-05-10 21:04:40
● 2017-01-03 00:31:02
○ 2017-08-21 01:49:58
○ 2026-05-10 21:04:40
●NSns2.nowcndns.com2026-02-15 → 2026-05-10 · 3 obs
○ 2018-08-24 06:27:52
● 2026-02-15 10:06:18
● 2026-05-10 21:04:40
● 2026-02-15 10:06:18
● 2026-05-10 21:04:40
○NSns3.ezdnscenter.com2017-01-03 → 2017-01-03 · 4 obs
○ 2016-01-29 02:45:12
● 2017-01-03 00:31:02
○ 2017-08-21 01:49:58
○ 2026-05-10 21:04:40
● 2017-01-03 00:31:02
○ 2017-08-21 01:49:58
○ 2026-05-10 21:04:40
○NSns4.ezdnscenter.com2017-01-03 → 2017-01-03 · 4 obs
○ 2016-01-29 02:45:12
● 2017-01-03 00:31:02
○ 2017-08-21 01:49:58
○ 2026-05-10 21:04:40
● 2017-01-03 00:31:02
○ 2017-08-21 01:49:58
○ 2026-05-10 21:04:40
○NSns5.ezdnscenter.com2017-01-03 → 2017-01-03 · 4 obs
○ 2016-01-29 02:45:12
● 2017-01-03 00:31:02
○ 2017-08-21 01:49:58
○ 2026-05-10 21:04:40
● 2017-01-03 00:31:02
○ 2017-08-21 01:49:58
○ 2026-05-10 21:04:40
○NSns6.ezdnscenter.com2017-01-03 → 2017-01-03 · 4 obs
○ 2016-01-29 02:45:12
● 2017-01-03 00:31:02
○ 2017-08-21 01:49:58
○ 2026-05-10 21:04:40
● 2017-01-03 00:31:02
○ 2017-08-21 01:49:58
○ 2026-05-10 21:04:40
●A154.80.244.2162026-04-10 → 2026-05-10 · 3 obs
○ 2026-03-16 23:29:02
● 2026-04-10 08:59:52
● 2026-05-10 21:04:40
● 2026-04-10 08:59:52
● 2026-05-10 21:04:40
○A156.235.244.2252026-02-15 → 2026-03-16 · 5 obs
○ 2018-08-24 06:27:52
● 2026-02-15 10:06:18
● 2026-03-16 23:29:02
○ 2026-04-10 08:59:52
○ 2026-05-10 21:04:40
● 2026-02-15 10:06:18
● 2026-03-16 23:29:02
○ 2026-04-10 08:59:52
○ 2026-05-10 21:04:40
○A183.60.233.1442018-05-29 → 2018-08-24 · 4 obs
● 2018-05-29 06:35:24
● 2018-08-24 06:27:52
○ 2026-02-15 10:06:18
○ 2026-05-10 21:04:40
● 2018-08-24 06:27:52
○ 2026-02-15 10:06:18
○ 2026-05-10 21:04:40
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cn | c.dns.cn, e.dns.cn, a.dns.cn, b.dns.cn... | - |
| bb2u.com.cn | ns1.nowcndns.com, ns2.nowcndns.com | - |
✅ Authoritative Response
Server:61.158.128.11
NS records: ns1.nowcndns.com, ns2.nowcndns.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for bb2u.com.cn (unsigned zone)
⏱️ Timing
Total: 3284ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 154.80.244.216 |
| NS | 2 | ns1.nowcndns.com, ns2.nowcndns.com |
| SOA | 1 | ns1.nowcndns.com admin.nowcndns.com |
Analysis
Hierarchy
bb2u.com.cn is the parent of mail.bb2u.com.cn.
IP Addresses
bb2u.com.cn resolves to one IP number: 154.80.244.216.
Other host names, for instance sqlmw.cn, 823928.cn and newguardforyou.cn share IP numbers with bb2u.com.cn.
Name Servers
bb2u.com.cn is delegated to two name servers ns1.nowcndns.com and ns2.nowcndns.com.
bb2u.com.cn shares the same name server setup as other domains, for instance 9sjz.cn, rnyu.cn, ttsou.com.cn, aiwdy.cn and xianpangu.cn.
Host names with three IPs:
ns1.nowcndns.com points to 1.193.216.204, 218.98.111.129 and 218.98.111.138.
ns2.nowcndns.com points to 61.158.128.11, 183.253.57.202 and 211.99.99.38.