computerschool.com.cn - robtex.com
computerschool.com.cn
| DNSSEC | ⚠️ Not signed | ||||||
| A | 177.211.173.211🇧🇷 UNSPECIFIED160.0.0.0/3 | ||||||
| NS | ns1.julydns.com ⭐ ⚠️ Not in parent delegation | ||||||
| A | 162.159.48.223Cloudflare162.159.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| NS | ns1.judns.com ⚠️ Not in zone NS records | ||||||
| A | 162.159.27.251Cloudflare162.159.27.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| NS | ns2.judns.com ⚠️ Not in zone NS records | ||||||
| A | 162.159.27.251Cloudflare162.159.27.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| NS | ns2.julydns.com ⚠️ Not in parent delegation | ||||||
| A | 162.159.48.223Cloudflare162.159.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| SOA | ns1.julydns.commaster@jmdns.com serial=1774097773 | ||||||
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=2030533263 | ||||||
Same first word
Similar names
DNS History
10 records (5 active, 5 former)
●NSns1.judns.com2026-04-04 → 2026-04-25 · 3 obs
● 2026-04-04 22:35:12
● 2026-04-25 04:33:28
●NSns1.julydns.com2026-04-04 → 2026-04-25 · 3 obs
● 2026-04-04 22:35:12
● 2026-04-25 04:33:28
○NSns19.xincache.com2015-05-27 → 2020-03-10 · 4 obs
● 2020-03-10 08:15:44
○ 2026-04-04 22:35:12
○ 2026-04-25 04:33:28
●NSns2.judns.com2026-04-04 → 2026-04-25 · 3 obs
● 2026-04-04 22:35:12
● 2026-04-25 04:33:28
●NSns2.julydns.com2026-04-04 → 2026-04-25 · 3 obs
● 2026-04-04 22:35:12
● 2026-04-25 04:33:28
○NSns20.xincache.com2015-05-27 → 2020-03-10 · 4 obs
● 2020-03-10 08:15:44
○ 2026-04-04 22:35:12
○ 2026-04-25 04:33:28
○MXmail.skrimple.com2015-10-16 → 2015-10-16 · 3 obs
○ 2015-12-16 10:44:46
○ 2026-04-25 04:33:28
○A125.211.197.802015-05-27 → 2020-03-10 · 6 obs
○ 2015-10-16 21:51:00
● 2015-12-16 10:44:46
● 2020-03-10 08:15:44
○ 2026-04-04 22:35:12
○ 2026-04-25 04:33:28
○A127.0.0.12015-10-16 → 2015-10-16 · 4 obs
● 2015-10-16 21:51:00
○ 2015-12-16 10:44:46
○ 2026-04-25 04:33:28
●A177.211.173.2112026-04-04 → 2026-04-25 · 3 obs
● 2026-04-04 22:35:12
● 2026-04-25 04:33:28
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cn | a.dns.cn, b.dns.cn, c.dns.cn, d.dns.cn... | - |
| computerschool.com.cn | ns1.judns.com, ns2.judns.com | - |
✅ Authoritative Response
Server:162.159.27.251
NS records: ns1.judns.com, ns2.judns.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for computerschool.com.cn (unsigned zone)
⏱️ Timing
Total: 1531ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 177.211.173.211 |
| NS | 2 | ns1.julydns.com, ns2.julydns.com |
| SOA | 1 | ns1.julydns.com master.jmdns.com |
Analysis
IP Addresses
computerschool.com.cn maps to IP address 177.211.173.211.
Name Servers
computerschool.com.cn is delegated to four name servers: ns1.judns.com, ns2.judns.com, ns1.julydns.com and ns2.julydns.com.
computerschool.com.cn at least partially shares name servers with other domains such as jhzt17.com.cn, guanlanguoji.com, nenmen.com, dlwhly.com and xdfjyzx.com.
Hostnames with a single IP
ns1.judns.com resolves to 162.159.27.251
ns2.judns.com resolves to 162.159.27.251
ns1.julydns.com resolves to 162.159.48.223
ns2.julydns.com resolves to 162.159.48.223
Hostnames pointing to 162.159.27.251: ns1.judns.com and ns2.judns.com
Hostnames pointing to 162.159.48.223: ns1.julydns.com and ns2.julydns.com