`youchenedu.com`

DNSSEC	⚠️ Not signed
A	154.212.219.210^{🇭🇰 MYCLOUD-AS-AP154.212.192.0/18 CloudFly Net Inc Pending}
NS	`a12.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}
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}
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}
NS	`b12.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}
SOA	`a.share-dns.com`master@share-dns.com serial=1771918293

`com`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a.gtld-servers.net` ⭐
	NS	`b.gtld-servers.net`
	NS	`c.gtld-servers.net`
	NS	`d.gtld-servers.net`
	NS	`e.gtld-servers.net`
	NS	`f.gtld-servers.net`
	NS	`g.gtld-servers.net`
	NS	`h.gtld-servers.net`
	NS	`i.gtld-servers.net`
	NS	`j.gtld-servers.net`
	NS	`k.gtld-servers.net`
	NS	`l.gtld-servers.net`
	NS	`m.gtld-servers.net`
	SOA	`a.gtld-servers.net`nstld@verisign-grs.com serial=1776975951

Subdomains

mail.youchenedu.com

DNS History

9 records (5 active, 4 former)

●NSa.share-dns.com2026-04-23 → 2026-04-23 · 2 obs

○ 2016-11-24 22:55:58
● 2026-04-23 20:39:26

●NSa12.share-dns.com2026-04-23 → 2026-04-23 · 2 obs

○ 2016-11-24 22:55:58
● 2026-04-23 20:39:26

●NSb.share-dns.net2026-04-23 → 2026-04-23 · 2 obs

○ 2016-11-24 22:55:58
● 2026-04-23 20:39:26

●NSb12.share-dns.net2026-04-23 → 2026-04-23 · 2 obs

○ 2016-11-24 22:55:58
● 2026-04-23 20:39:26

○NSns1.stuffcoupon.us2015-05-23 → 2016-01-04 · 4 obs

● 2015-05-23 08:28:00
● 2016-01-04 09:16:40
○ 2016-11-24 22:55:58
○ 2026-04-23 20:39:26

○NSns2.stuffcoupon.us2015-05-23 → 2016-01-04 · 4 obs

● 2015-05-23 08:28:00
● 2016-01-04 09:16:40
○ 2016-11-24 22:55:58
○ 2026-04-23 20:39:26

○MXmail.youchenedu.com2015-05-23 → 2016-01-04 · 4 obs

● 2015-05-23 08:28:00
● 2016-01-04 09:16:40
○ 2016-11-24 22:55:58
○ 2026-04-23 20:39:26

●A154.212.219.2102026-04-23 → 2026-04-23 · 2 obs

○ 2016-11-24 22:55:58
● 2026-04-23 20:39:26

○A204.62.13.892015-05-23 → 2016-01-04 · 4 obs

● 2015-05-23 08:28:00
● 2016-01-04 09:16:40
○ 2016-11-24 22:55:58
○ 2026-04-23 20:39:26

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
youchenedu.com	b12.share-dns.net, a12.share-dns.com	1 record

✅ Authoritative Response

Server:172.64.52.239

NS records: b12.share-dns.net, a12.share-dns.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for youchenedu.com (unsigned zone)

⏱️ Timing

Total: 278ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`154.212.219.210`
NS	2	`a.share-dns.com, b.share-dns.net`
SOA	1	`a.share-dns.com master.share-dns.com`

📌 Glue Records Collected

Total: 1

Out-of-bailiwick: 1 (a12.share-dns.com)

Analysis

Hierarchy

The parent of mail.youchenedu.com is youchenedu.com.

IP Addresses

youchenedu.com points to a single IP number: 154.212.219.210.

Other host names, for instance sycqsd.com and mail.youchenedu.com, share IP numbers with youchenedu.com.

Name Servers

youchenedu.com is delegated to four name servers: a12.share-dns.com, a.share-dns.com, b12.share-dns.net and b.share-dns.net.

youchenedu.com shares name servers with other domains at least partially, for instance tianxiangjs.com, sh-longling.com, plsenglish.com, ythaian.com and tzjhws.com.