`uprogrammer.cn`

DNSSEC	⚠️ Not signed
A	38.239.40.147^{🇺🇸 HDHK38.239.32.0/20}
NS	`a11.share-dns.com` ⭐ ⚠️ Not in parent delegation
		A	172.64.53.25^{🇺🇸 Cloudflare172.64.53.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ip-172-64-53-25.defastlink.net`
NS	`a.share-dns.com` ⚠️ Not in zone NS records
		A	172.64.53.25^{🇺🇸 Cloudflare172.64.53.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ip-172-64-53-25.defastlink.net`
NS	`b.share-dns.net` ⚠️ Not in zone NS records
		A	172.64.52.239^{🇺🇸 Cloudflare172.64.52.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ip-172-64-52-239.defastlink.net`
NS	`b11.share-dns.net` ⚠️ Not in parent delegation
		A	172.64.52.239^{🇺🇸 Cloudflare172.64.52.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ip-172-64-52-239.defastlink.net`
SOA	`a.share-dns.com`master@share-dns.com serial=1747667938

`cn`

	DNSSEC	⚠️ Not signed
	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.cn`root@cnnic.cn serial=2034546407

Subdomains

course.uprogrammer.cn

Same first word

uprogrammer.cn

Similar names

programmeur.ch

DNS History

8 records (5 active, 3 former)

●NSa.share-dns.com2026-02-24 → 2026-03-24 · 3 obs

○ 2017-06-08 22:28:36
● 2026-02-24 18:32:06
● 2026-03-24 09:01:24

●NSa11.share-dns.com2026-02-24 → 2026-03-24 · 3 obs

○ 2017-06-08 22:28:36
● 2026-02-24 18:32:06
● 2026-03-24 09:01:24

●NSb.share-dns.net2026-02-24 → 2026-03-24 · 3 obs

○ 2017-06-08 22:28:36
● 2026-02-24 18:32:06
● 2026-03-24 09:01:24

●NSb11.share-dns.net2026-02-24 → 2026-03-24 · 3 obs

○ 2017-06-08 22:28:36
● 2026-02-24 18:32:06
● 2026-03-24 09:01:24

○NSdns10.hichina.com2017-06-08 → 2017-06-08 · 3 obs

● 2017-06-08 22:28:36
○ 2026-02-24 18:32:06
○ 2026-03-24 09:01:24

○NSdns9.hichina.com2017-06-08 → 2017-06-08 · 3 obs

● 2017-06-08 22:28:36
○ 2026-02-24 18:32:06
○ 2026-03-24 09:01:24

●A38.239.40.1472026-02-24 → 2026-03-24 · 2 obs

● 2026-02-24 18:32:06
● 2026-03-24 09:01:24

○CNAMEuprogrammer.coding.me2017-06-08 → 2017-06-08 · 3 obs

● 2017-06-08 22:28:36
○ 2026-02-24 18:32:06
○ 2026-03-24 09:01:24

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
cn	a.dns.cn, b.dns.cn, c.dns.cn, d.dns.cn...	-
uprogrammer.cn	a11.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: 912ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`38.239.40.147`
NS	2	`a.share-dns.com, b.share-dns.net`
SOA	1	`a.share-dns.com master.share-dns.com`

Analysis

Hierarchy

uprogrammer.cn is a parent of course.uprogrammer.cn.

IP Addresses

uprogrammer.cn points to a single IP address: 38.239.40.147.

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

Name Servers

uprogrammer.cn is delegated to four name servers: a11.share-dns.com, a.share-dns.com, b11.share-dns.net and b.share-dns.net.

At least part of the name servers for uprogrammer.cn are shared with other domains, for instance wfbjbpw.cn, zjxflys.com, hldlsd(0x787878).com, jinyanjs.com and shengqian666.com.