rt91.cn - robtex.com
rt91.cn
| DNSSEC | ⚠️ Not signed | ||||||
| A | 207.57.202.98🇺🇸 USZNI-AS-AP207.57.192.0/18 Starcloud - Nebula | ||||||
| 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=1768993806 | ||||||
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=2034590480 | ||||||
Same first word
rt91.cn |
Similar names
DNS History
10 records (3 active, 7 former)
○NSjm1.dns.com2020-01-22 → 2020-01-22 · 4 obs
○ 2017-03-08 00:26:04
● 2020-01-22 22:44:14
○ 2026-03-14 11:44:16
○ 2026-03-26 19:26:12
● 2020-01-22 22:44:14
○ 2026-03-14 11:44:16
○ 2026-03-26 19:26:12
○NSjm2.dns.com2020-01-22 → 2020-01-22 · 4 obs
○ 2017-03-08 00:26:04
● 2020-01-22 22:44:14
○ 2026-03-14 11:44:16
○ 2026-03-26 19:26:12
● 2020-01-22 22:44:14
○ 2026-03-14 11:44:16
○ 2026-03-26 19:26:12
○NSns1.51dns.com2015-06-30 → 2016-01-26 · 5 obs
● 2015-06-30 13:02:16
○ 2015-10-29 03:57:46
● 2016-01-26 13:51:48
○ 2017-03-08 00:26:04
○ 2026-03-26 19:26:12
○ 2015-10-29 03:57:46
● 2016-01-26 13:51:48
○ 2017-03-08 00:26:04
○ 2026-03-26 19:26:12
●NSns1.nowcndns.com2026-03-14 → 2026-03-26 · 3 obs
○ 2020-01-22 22:44:14
● 2026-03-14 11:44:16
● 2026-03-26 19:26:12
● 2026-03-14 11:44:16
● 2026-03-26 19:26:12
○NSns2.51dns.com2015-06-30 → 2016-01-26 · 5 obs
● 2015-06-30 13:02:16
○ 2015-10-29 03:57:46
● 2016-01-26 13:51:48
○ 2017-03-08 00:26:04
○ 2026-03-26 19:26:12
○ 2015-10-29 03:57:46
● 2016-01-26 13:51:48
○ 2017-03-08 00:26:04
○ 2026-03-26 19:26:12
●NSns2.nowcndns.com2026-03-14 → 2026-03-26 · 3 obs
○ 2020-01-22 22:44:14
● 2026-03-14 11:44:16
● 2026-03-26 19:26:12
● 2026-03-14 11:44:16
● 2026-03-26 19:26:12
○A108.187.26.1422016-01-26 → 2016-01-26 · 4 obs
○ 2015-10-29 03:57:46
● 2016-01-26 13:51:48
○ 2017-03-08 00:26:04
○ 2026-03-26 19:26:12
● 2016-01-26 13:51:48
○ 2017-03-08 00:26:04
○ 2026-03-26 19:26:12
○A172.240.88.1792015-06-30 → 2015-06-30 · 3 obs
● 2015-06-30 13:02:16
○ 2015-10-29 03:57:46
○ 2026-03-26 19:26:12
○ 2015-10-29 03:57:46
○ 2026-03-26 19:26:12
●A207.57.202.982026-03-14 → 2026-03-26 · 3 obs
○ 2020-01-22 22:44:14
● 2026-03-14 11:44:16
● 2026-03-26 19:26:12
● 2026-03-14 11:44:16
● 2026-03-26 19:26:12
○A47.244.151.642020-01-22 → 2020-01-22 · 4 obs
○ 2017-03-08 00:26:04
● 2020-01-22 22:44:14
○ 2026-03-14 11:44:16
○ 2026-03-26 19:26:12
● 2020-01-22 22:44:14
○ 2026-03-14 11:44:16
○ 2026-03-26 19:26:12
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cn | a.dns.cn, e.dns.cn, d.dns.cn, c.dns.cn... | - |
| rt91.cn | ns1.nowcndns.com, ns2.nowcndns.com | - |
✅ Authoritative Response
Server:218.98.111.138
NS records: ns1.nowcndns.com, ns2.nowcndns.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for rt91.cn (unsigned zone)
⏱️ Timing
Total: 3755ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 207.57.202.98 |
| NS | 2 | ns1.nowcndns.com, ns2.nowcndns.com |
| SOA | 1 | ns1.nowcndns.com admin.nowcndns.com |
Analysis
IP Addresses
rt91.cn resolves to one IP number: 207.57.202.98.
Name Servers
rt91.cn is delegated to two name servers ns1.nowcndns.com and ns2.nowcndns.com.
rt91.cn shares the same name server setup as other domains, for instance hbb123.cn, bzpump.cn, v-server.cn, fpkpw.cn and wxxlx.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.