itb.cn - robtex.com
itb.cn
| DNSSEC | ⚠️ Not signed | ||||||
| NS | dns8.66.cn ⚠️ Not in zone NS records | ||||||
| A | 101.200.144.193🇨🇳 Alibaba-Cloud101.200.0.0/16 CT BeiJing IDC | ||||||
| NS | dns9.66.cn ⚠️ Not in zone NS records | ||||||
| A | 123.56.111.68🇨🇳 Alibaba-Cloud123.56.0.0/16 Alibaba (US) Technology Co., Ltd. | ||||||
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 2035-04-28 #22 | ||||||
Same first word
Similar names
DNS History
6 records (2 active, 4 former)
○A103.232.215.1382016-07-19 → 2016-10-17 · 5 obs
○ 2016-07-10 23:12:02
● 2016-07-19 15:46:32
● 2016-10-17 18:26:46
○ 2016-11-27 23:03:00
○ 2026-07-15 08:53:56
● 2016-07-19 15:46:32
● 2016-10-17 18:26:46
○ 2016-11-27 23:03:00
○ 2026-07-15 08:53:56
○A124.16.31.1502016-11-27 → 2017-01-09 · 5 obs
○ 2016-10-17 18:26:46
● 2016-11-27 23:03:00
● 2017-01-09 23:50:42
○ 2020-12-13 10:15:04
○ 2026-07-15 08:53:56
● 2016-11-27 23:03:00
● 2017-01-09 23:50:42
○ 2020-12-13 10:15:04
○ 2026-07-15 08:53:56
○A184.105.178.912015-06-11 → 2016-07-10 · 4 obs
● 2015-06-11 07:20:42
● 2016-07-10 23:12:02
○ 2016-07-19 15:46:32
○ 2026-07-15 08:53:56
● 2016-07-10 23:12:02
○ 2016-07-19 15:46:32
○ 2026-07-15 08:53:56
○A47.75.42.252020-12-13 → 2021-10-14 · 5 obs
○ 2017-01-09 23:50:42
● 2020-12-13 10:15:04
● 2021-10-14 07:22:00
○ 2026-06-29 22:07:02
○ 2026-07-15 08:53:56
● 2020-12-13 10:15:04
● 2021-10-14 07:22:00
○ 2026-06-29 22:07:02
○ 2026-07-15 08:53:56
🔍 DNS Trace
Analysis
Name Servers
The NS records for itb.cn delegate to dns8.66.cn and dns9.66.cn.
The name server configuration of itb.cn is shared with other domains, for instance yinghua.cn, airlink.cn, jdqt.cn and two others.
dns8.66.cn → 101.200.144.193 and dns9.66.cn → 123.56.111.68: one IP number per host name.