sqlcourse.cn - dns.ninja
sqlcourse.cn
| DNSSEC | ⚠️ Not signed | ||||||
| A | 62.146.173.132 | ||||||
| NS | jack.dnspod.net ⭐ | ||||||
| NS | ivan.dnspod.net | ||||||
| SOA | jack.dnspod.netfreednsadmin@dnspod.com serial=1793204692 | ||||||
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=2035517789 | ||||||
Same first word
sqlcourse.ru |
sqlcourse.cn |
sqlcourse.net |
sqlcourse.com |
Similar names
DNS History
3 records (3 active, 0 former)
●NSivan.dnspod.net2026-10-07 → 2026-11-03 · 2 obs
● 2026-10-07 18:24:16
● 2026-11-03 19:16:54
● 2026-11-03 19:16:54
●NSjack.dnspod.net2026-10-07 → 2026-11-03 · 2 obs
● 2026-10-07 18:24:16
● 2026-11-03 19:16:54
● 2026-11-03 19:16:54
●A62.146.173.1322026-10-07 → 2026-11-03 · 2 obs
● 2026-10-07 18:24:16
● 2026-11-03 19:16:54
● 2026-11-03 19:16:54
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cn | a.dns.cn, b.dns.cn, c.dns.cn, d.dns.cn... | - |
| sqlcourse.cn | ivan.dnspod.net, jack.dnspod.net | - |
✅ Authoritative Response
Server:111.206.98.235
NS records: ivan.dnspod.net, jack.dnspod.net
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for sqlcourse.cn (unsigned zone)
⏱️ Timing
Total: 4494ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 62.146.173.132 |
| NS | 2 | jack.dnspod.net, ivan.dnspod.net |
| SOA | 1 | jack.dnspod.net freednsadmin.dnspod.com |
Analysis
IP Addresses
sqlcourse.cn has exactly one IP address — 62.146.173.132.
Name Servers
DNS delegation for sqlcourse.cn points to two name servers: ivan.dnspod.net and jack.dnspod.net.