`21dh.com`

DNSSEC	⚠️ Not signed
A	156.251.4.78^{🇺🇸 TCLOUDNET156.251.4.0/24 Tcloudnet, Inc}
NS	`a3.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	`b3.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=1764403441

`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=1771291435

Same first word

21dh.com

21dh.cn

Similar names

hd21.club

hd12.fr

d2h1.com

dh21.com

21hd.com

dh21.cn

h1d2.com

hd21.com

21hd.cn

12hd.cn

dh21.de

h2d1.com

hd21.net

hd12.com

h1d2.com.cn

12hd.com

d1h2.de

hd12.net

dh21.ru

hd21.cn

dh12.ru

dh12.com

hd21.de

2hd1.com

12dh.com

2h1d.com

21hd.net

DNS History

8 records (5 active, 3 former)

●NSa.share-dns.com2026-03-02 → 2026-03-02 · 2 obs

○ 2018-08-14 23:43:24
● 2026-03-02 22:04:32

●NSa3.share-dns.com2026-03-02 → 2026-03-02 · 2 obs

○ 2018-08-14 23:43:24
● 2026-03-02 22:04:32

●NSb.share-dns.net2026-03-02 → 2026-03-02 · 2 obs

○ 2018-08-14 23:43:24
● 2026-03-02 22:04:32

●NSb3.share-dns.net2026-03-02 → 2026-03-02 · 2 obs

○ 2018-08-14 23:43:24
● 2026-03-02 22:04:32

○NSns19.xincache.com2015-07-21 → 2018-08-14 · 3 obs

● 2015-07-21 01:52:16
● 2018-08-14 23:43:24
○ 2026-03-02 22:04:32

○NSns20.xincache.com2015-07-21 → 2018-08-14 · 3 obs

● 2015-07-21 01:52:16
● 2018-08-14 23:43:24
○ 2026-03-02 22:04:32

○MXmail.21dh.com2015-07-21 → 2018-08-14 · 3 obs

● 2015-07-21 01:52:16
● 2018-08-14 23:43:24
○ 2026-03-02 22:04:32

●A156.251.4.782026-03-02 → 2026-03-02 · 1 obs

● 2026-03-02 22:04:32

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
21dh.com	b3.share-dns.net, a3.share-dns.com	1 record

✅ Authoritative Response

Server: 172.64.53.25

NS records: b3.share-dns.net, a3.share-dns.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for 21dh.com (unsigned zone)

⏱️ Timing

Total: 341ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`156.251.4.78`
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 (a3.share-dns.com)

Analysis

IP Addresses

21dh.com points to IP number 156.251.4.78.

Other host names, for example www.gwjnpx.com and gwjnpx.com, share IPs with 21dh.com.

Name Servers

21dh.com is delegated to four name servers: a3.share-dns.com, a.share-dns.com, b3.share-dns.net and b.share-dns.net.

21dh.com shares name servers with other domains at least partially, for example qihuifw.com, hnpj3.com, jllingri.com, cs15.cn and crccfamily.com.