`duduedu.com`

DNSSEC	⚠️ Not signed
A	38.173.48.7^{🇺🇸 AS39847838.173.0.0/18 PEG TECH INC}
NS	`a2.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	`b2.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=1766488224

`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=1774646002

Same first word

duduedu.com

DNS History

11 records (5 active, 6 former)

●NSa.share-dns.com2026-03-27 → 2026-03-27 · 2 obs

○ 2018-07-20 20:38:44
● 2026-03-27 21:38:00

●NSa2.share-dns.com2026-03-27 → 2026-03-27 · 2 obs

○ 2018-07-20 20:38:44
● 2026-03-27 21:38:00

●NSb.share-dns.net2026-03-27 → 2026-03-27 · 2 obs

○ 2018-07-20 20:38:44
● 2026-03-27 21:38:00

●NSb2.share-dns.net2026-03-27 → 2026-03-27 · 2 obs

○ 2018-07-20 20:38:44
● 2026-03-27 21:38:00

○NSdns10.hichina.com2016-05-01 → 2018-07-20 · 3 obs

● 2016-05-01 19:08:14
● 2018-07-20 20:38:44
○ 2026-03-27 21:38:00

○NSdns9.hichina.com2016-05-01 → 2018-07-20 · 3 obs

● 2016-05-01 19:08:14
● 2018-07-20 20:38:44
○ 2026-03-27 21:38:00

○MXmxn.mxhichina.com2016-05-01 → 2018-07-20 · 3 obs

● 2016-05-01 19:08:14
● 2018-07-20 20:38:44
○ 2026-03-27 21:38:00

○MXmxw.mxhichina.com2016-05-01 → 2018-07-20 · 3 obs

● 2016-05-01 19:08:14
● 2018-07-20 20:38:44
○ 2026-03-27 21:38:00

○A139.129.187.1152016-05-01 → 2016-05-01 · 3 obs

● 2016-05-01 19:08:14
○ 2017-01-16 10:35:48
○ 2026-03-27 21:38:00

○A139.129.191.672017-01-16 → 2018-07-20 · 4 obs

○ 2016-05-01 19:08:14
● 2017-01-16 10:35:48
● 2018-07-20 20:38:44
○ 2026-03-27 21:38:00

●A38.173.48.72026-03-27 → 2026-03-27 · 2 obs

○ 2018-07-20 20:38:44
● 2026-03-27 21:38:00

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	g.gtld-servers.net, a.gtld-servers.net, h.gtld-servers.net, b.gtld-servers.net...	-
duduedu.com	b2.share-dns.net, a2.share-dns.com	1 record

✅ Authoritative Response

Server:172.64.53.25

NS records: b2.share-dns.net, a2.share-dns.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for duduedu.com (unsigned zone)

⏱️ Timing

Total: 473ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`38.173.48.7`
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 (a2.share-dns.com)

Analysis

IP Addresses

duduedu.com points to a single IP: 38.173.48.7.

Name Servers

duduedu.com's delegation is handled by four name servers: a2.share-dns.com, a.share-dns.com, b2.share-dns.net and b.share-dns.net.

duduedu.com partially shares name servers with other domains; examples include 84811.xyz, truanet.com, cbbv.org, t0jza3ui.com and 168ddd168.com.