studynotes.com.cn - robtex.com
studynotes.com.cn
| DNSSEC | ⚠️ Not signed | ||||||
| NS | ns1.volcdns.com ⭐ | ||||||
| NS | ns1.volcengine-dns.com | ||||||
| NS | ns2.volcengine-dns.com | ||||||
| SOA | ns1.volcdns.comdnsadmin@bytedance.com 2026-10-26 #0 | ||||||
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=2030933833 | ||||||
Same first word
Similar names
DNS History
3 records (3 active, 0 former)
●NSns1.volcdns.com2026-10-26 → 2026-11-05 · 2 obs
● 2026-10-26 15:54:08
● 2026-11-05 07:20:22
● 2026-11-05 07:20:22
●NSns1.volcengine-dns.com2026-10-26 → 2026-11-05 · 2 obs
● 2026-10-26 15:54:08
● 2026-11-05 07:20:22
● 2026-11-05 07:20:22
●NSns2.volcengine-dns.com2026-10-26 → 2026-11-05 · 2 obs
● 2026-10-26 15:54:08
● 2026-11-05 07:20:22
● 2026-11-05 07:20:22
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cn | a.dns.cn, b.dns.cn, c.dns.cn, d.dns.cn... | - |
| studynotes.com.cn | ns1.volcengine-dns.com, ns2.volcengine-dns.com | - |
✅ Authoritative Response
Server:180.184.1.151
NS records: ns1.volcengine-dns.com, ns2.volcengine-dns.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for studynotes.com.cn (unsigned zone)
⏱️ Timing
Total: 2630ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 75.2.60.5 |
| NS | 2 | ns1.volcengine-dns.com, ns2.volcengine-dns.com |
| SOA | 1 | ns1.volcdns.com dnsadmin.bytedance.com |
Analysis
Name Servers
The authoritative name servers for studynotes.com.cn are ns1.volcdns.com, ns1.volcengine-dns.com and ns2.volcengine-dns.com — three in total.