matlabtutor.cn - robtex.com
matlabtutor.cn
| CNAME | cname.qichepi.cn | ||||||
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=2034671411 | ||||||
Subdomains
www.matlabtutor.cn |
Same first word
matlabtutor.cn |
DNS History
10 records (5 active, 5 former)
○NS88ming.net2017-07-20 → 2017-07-20 · 3 obs
● 2017-07-20 21:50:54
○ 2026-02-19 11:59:56
○ 2026-04-15 02:14:34
○ 2026-02-19 11:59:56
○ 2026-04-15 02:14:34
●NSa.share-dns.com2026-02-19 → 2026-04-15 · 3 obs
○ 2017-07-20 21:50:54
● 2026-02-19 11:59:56
● 2026-04-15 02:14:34
● 2026-02-19 11:59:56
● 2026-04-15 02:14:34
●NSa5.share-dns.com2026-02-19 → 2026-04-15 · 3 obs
○ 2017-07-20 21:50:54
● 2026-02-19 11:59:56
● 2026-04-15 02:14:34
● 2026-02-19 11:59:56
● 2026-04-15 02:14:34
●NSb.share-dns.net2026-02-19 → 2026-04-15 · 3 obs
○ 2017-07-20 21:50:54
● 2026-02-19 11:59:56
● 2026-04-15 02:14:34
● 2026-02-19 11:59:56
● 2026-04-15 02:14:34
●NSb5.share-dns.net2026-02-19 → 2026-04-15 · 3 obs
○ 2017-07-20 21:50:54
● 2026-02-19 11:59:56
● 2026-04-15 02:14:34
● 2026-02-19 11:59:56
● 2026-04-15 02:14:34
○NSns1.88ming.net2017-07-20 → 2017-07-20 · 3 obs
● 2017-07-20 21:50:54
○ 2026-02-19 11:59:56
○ 2026-04-15 02:14:34
○ 2026-02-19 11:59:56
○ 2026-04-15 02:14:34
○NSns2.88ming.net2017-07-20 → 2017-07-20 · 3 obs
● 2017-07-20 21:50:54
○ 2026-02-19 11:59:56
○ 2026-04-15 02:14:34
○ 2026-02-19 11:59:56
○ 2026-04-15 02:14:34
○A119.10.41.1072017-07-20 → 2017-07-20 · 3 obs
● 2017-07-20 21:50:54
○ 2026-02-19 11:59:56
○ 2026-04-15 02:14:34
○ 2026-02-19 11:59:56
○ 2026-04-15 02:14:34
○CNAME8150.cnamejiexi.cc2026-02-19 → 2026-02-19 · 3 obs
● 2026-02-19 11:59:56
○ 2026-04-15 02:14:30
○ 2026-04-15 02:14:34
○ 2026-04-15 02:14:30
○ 2026-04-15 02:14:34
●CNAMEcname.qichepi.cn2026-04-15 → 2026-04-15 · 3 obs
○ 2026-02-19 11:59:56
● 2026-04-15 02:14:30
● 2026-04-15 02:14:34
● 2026-04-15 02:14:30
● 2026-04-15 02:14:34
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cn | a.dns.cn, b.dns.cn, c.dns.cn, d.dns.cn... | - |
| matlabtutor.cn | a5.share-dns.com, b5.share-dns.net | - |
✅ Authoritative Response
Server:172.64.53.25
NS records: a5.share-dns.com, b5.share-dns.net
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for matlabtutor.cn (unsigned zone)
⏱️ Timing
Total: 679ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| NS | 2 | a.share-dns.com, b.share-dns.net |
| CNAME | 1 | cname.qichepi.cn |
| SOA | 1 | a.share-dns.com master.share-dns.com |