`study.yisc.com.cn`

	DNSSEC	⚠️ Not signed
	A	38.147.173.214^{🇺🇸 LUCID-AS-AP38.147.173.0/24 Customer Route}

`yisc.com.cn`

	DNSSEC	⚠️ Not signed
	NS	`ns1.julydns.com` ⭐ ⚠️ Not in parent delegation
	NS	`ns1.judns.com` ⚠️ Not in zone NS records
	NS	`ns2.judns.com` ⚠️ Not in zone NS records
	NS	`ns2.julydns.com` ⚠️ Not in parent delegation
	SOA	`ns1.julydns.com`master@jmdns.com serial=1773313794

Same first word

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DNS History

2 records (1 active, 1 former)

●A38.147.173.2142026-03-24 → 2026-04-04 · 3 obs

○ 2026-03-06 08:30:42
● 2026-03-24 20:42:38
● 2026-04-04 14:14:38

○A46.149.199.462026-02-23 → 2026-02-28 · 4 obs

● 2026-02-23 15:22:54
● 2026-02-28 18:09:40
○ 2026-03-06 08:30:42
○ 2026-04-04 14:14:38

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
cn	b.dns.cn, d.dns.cn, a.dns.cn, e.dns.cn...	-
yisc.com.cn	ns1.judns.com, ns2.judns.com	-

✅ Authoritative Response

Server:47.97.51.45

NS records: ns1.judns.com, ns2.judns.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for yisc.com.cn (unsigned zone)

⏱️ Timing

Total: 1322ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`38.147.173.214`

Analysis

IP Addresses

study.yisc.com.cn points to a single IP number: 38.147.173.214.

Other host names, for instance nihao.yisc.com.cn, yule.yisc.com.cn, media.yisc.com.cn and com.yisc.com.cn share IP numbers with study.yisc.com.cn.

study.yisc.com.cn - robtex.com

study.yisc.com.cn

yisc.com.cn