course.uprogrammer.cn - robtex.com

course.uprogrammer.cn

DNSSEC⚠️ Not signed
A38.239.40.147🇺🇸 HDHK38.239.32.0/20

uprogrammer.cn

DNSSEC⚠️ Not signed
A38.239.40.147🇺🇸 HDHK38.239.32.0/20
NSa11.share-dns.com ⭐ ⚠️ Not in parent delegation
NSa.share-dns.com ⚠️ Not in zone NS records
NSb.share-dns.net ⚠️ Not in zone NS records
NSb11.share-dns.net ⚠️ Not in parent delegation
SOAa.share-dns.commaster@share-dns.com serial=1747667938

Subdomains

6.course.uprogrammer.cn
1.course.uprogrammer.cn

Same first word

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DNS History

1 record (1 active, 0 former)

A38.239.40.147
●A38.239.40.1472026-02-24 → 2026-03-24 · 2 obs
● 2026-02-24 18:32:04
● 2026-03-24 18:59:10

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
cna.dns.cn, b.dns.cn, c.dns.cn, d.dns.cn...-
uprogrammer.cna11.share-dns.com, b11.share-dns.net-

✅ Authoritative Response

Server:172.64.52.239

NS records: a11.share-dns.com, b11.share-dns.net

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for uprogrammer.cn (unsigned zone)

⏱️ Timing

Total: 848ms | Queries: -

📄 Records

TypeCountSample Data
A138.239.40.147

Analysis

Hierarchy

course.uprogrammer.cn is the parent of 6.course.uprogrammer.cn and 1.course.uprogrammer.cn.

IP Addresses

course.uprogrammer.cn resolves to a single IP: 38.239.40.147.

Other host names including 6.course.uprogrammer.cn, uprogrammer.cn and 1.course.uprogrammer.cn share IP numbers with course.uprogrammer.cn.