`duoduotang.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3034::6815:5310^{🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3037::ac43:a6f8^{🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.83.16^{Cloudflare104.21.80.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.166.248^{🇺🇸 Cloudflare172.67.160.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`donna.ns.cloudflare.com` ⭐
		A	2606:4700:50::adf5:3a97^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`donna.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c097^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`donna.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2097^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`donna.ns.cloudflare.com`
		A	108.162.192.151^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`donna.ns.cloudflare.com`
		A	172.64.32.151^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`donna.ns.cloudflare.com`
		A	173.245.58.151^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`donna.ns.cloudflare.com`
NS	`nash.ns.cloudflare.com`
		A	2606:4700:58::adf5:3bd1^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`nash.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c1d1^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`nash.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:21d1^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`nash.ns.cloudflare.com`
		A	108.162.193.209^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`nash.ns.cloudflare.com`
		A	172.64.33.209^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`nash.ns.cloudflare.com`
		A	173.245.59.209^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`nash.ns.cloudflare.com`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.83.16, 172.67.166.248
		IPv6 hints	2606:4700:3034::6815:5310, 2606:4700:3037::ac43:a6f8
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=226, name=cloudflare-ech.com
SOA	`donna.ns.cloudflare.com`dns@cloudflare.com serial=2400950267

`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=1776148612

Same first word

duoduotang.com

DNS History

20 records (6 active, 14 former)

○NSa.share-dns.com2026-04-14 → 2026-04-14 · 1 obs

○ 2026-04-14 07:05:36

○NSb.share-dns.net2026-04-14 → 2026-04-14 · 1 obs

○ 2026-04-14 07:05:36

○NSdns3.hichina.com2020-03-05 → 2020-03-05 · 3 obs

○ 2016-12-09 03:58:34
● 2020-03-05 02:01:38
○ 2026-04-14 07:05:36

○NSdns4.hichina.com2020-03-05 → 2020-03-05 · 3 obs

○ 2016-12-09 03:58:34
● 2020-03-05 02:01:38
○ 2026-04-14 07:05:36

●NSdonna.ns.cloudflare.com2026-04-14 → 2026-04-14 · 2 obs

○ 2020-03-05 02:01:38
● 2026-04-14 07:05:36

●NSnash.ns.cloudflare.com2026-04-14 → 2026-04-14 · 2 obs

○ 2020-03-05 02:01:38
● 2026-04-14 07:05:36

○NSns10.cdncenter.com2015-05-27 → 2016-12-09 · 4 obs

● 2015-05-27 09:54:02
● 2016-12-09 03:58:34
○ 2020-03-05 02:01:38
○ 2026-04-14 07:05:36

○NSns11.cdncenter.com2015-05-27 → 2016-12-09 · 4 obs

● 2015-05-27 09:54:02
● 2016-12-09 03:58:34
○ 2020-03-05 02:01:38
○ 2026-04-14 07:05:36

○NSns12.cdncenter.com2015-05-27 → 2016-12-09 · 4 obs

● 2015-05-27 09:54:02
● 2016-12-09 03:58:34
○ 2020-03-05 02:01:38
○ 2026-04-14 07:05:36

○NSns7.cdncenter.com2015-05-27 → 2016-12-09 · 4 obs

● 2015-05-27 09:54:02
● 2016-12-09 03:58:34
○ 2020-03-05 02:01:38
○ 2026-04-14 07:05:36

○NSns8.cdncenter.com2015-05-27 → 2016-12-09 · 4 obs

● 2015-05-27 09:54:02
● 2016-12-09 03:58:34
○ 2020-03-05 02:01:38
○ 2026-04-14 07:05:36

○NSns9.cdncenter.com2015-05-27 → 2016-12-09 · 4 obs

● 2015-05-27 09:54:02
● 2016-12-09 03:58:34
○ 2020-03-05 02:01:38
○ 2026-04-14 07:05:36

●A104.21.83.162026-04-14 → 2026-04-14 · 2 obs

○ 2020-03-05 02:01:38
● 2026-04-14 07:05:36

○A122.228.204.852016-01-14 → 2016-12-09 · 5 obs

○ 2015-05-27 09:54:02
● 2016-01-14 04:35:14
● 2016-12-09 03:58:34
○ 2020-03-05 02:01:38
○ 2026-04-14 07:05:36

●A172.67.166.2482026-04-14 → 2026-04-14 · 2 obs

○ 2020-03-05 02:01:38
● 2026-04-14 07:05:36

●A2606:4700:3034::6815:53102026-04-14 → 2026-04-14 · 2 obs

○ 2020-03-05 02:01:38
● 2026-04-14 07:05:36

●A2606:4700:3037::ac43:a6f82026-04-14 → 2026-04-14 · 2 obs

○ 2020-03-05 02:01:38
● 2026-04-14 07:05:36

○A38.174.140.732026-04-14 → 2026-04-14 · 1 obs

○ 2026-04-14 07:05:36

○A61.164.141.1792015-05-27 → 2015-05-27 · 3 obs

● 2015-05-27 09:54:02
○ 2016-01-14 04:35:14
○ 2026-04-14 07:05:36

○CNAMEoverdue.aliyun.com2020-03-05 → 2020-03-05 · 2 obs

● 2020-03-05 02:01:38
○ 2026-04-14 07:05:36

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	l.gtld-servers.net, e.gtld-servers.net, m.gtld-servers.net, d.gtld-servers.net...	-
duoduotang.com	donna.ns.cloudflare.com, nash.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.192.151

NS records: donna.ns.cloudflare.com, nash.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for duoduotang.com (unsigned zone)

⏱️ Timing

Total: 231ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.166.248, 104.21.83.16`
AAAA	2	`2606:4700:3034::6815:5310, 2606:4700:3037::ac43:a6f8`
NS	2	`donna.ns.cloudflare.com, nash.ns.cloudflare.com`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`donna.ns.cloudflare.com dns.cloudflare.c`

📌 Glue Records Collected

Total: 12

Out-of-bailiwick: 12 (donna.ns.cloudflare.com, donna.ns.cloudflare.com, donna.ns.cloudflare.com...)

Analysis

IP Addresses

duoduotang.com maps to four IP numbers: 2606:4700:3034::6815:5310, 2606:4700:3037::ac43:a6f8, 104.21.83.16 and 172.67.166.248.

other host names include www.jzbxjz.com, crazytech.us, computeravenue.ca, gobam.org.br and allegrolokalnie.pl-kategorie15689214675126.shop; they share IP numbers with duoduotang.com.

Name Servers

Two name servers donna.ns.cloudflare.com and nash.ns.cloudflare.com handle the delegation for duoduotang.com.

duoduotang.com shares the same name server setup as other domains, for instance thomaskinkadeonline.com, dayincn.com, njtstdl.com, directorytraveling.net and law0755.com.

duoduotang.com at least partially shares name servers with other domains, for instance hablordfilm.ru, hondatouchuppaint.com, leedal.com.au, huaxiangrubber.com and exbf.com.

These name servers are commonly used with pablo.ns.cloudflare.com, aspen.ns.cloudflare.com, moura.ns.cloudflare.com, augustus.ns.cloudflare.com and frank.ns.cloudflare.com.

Six IP addresses per host:

donna.ns.cloudflare.com points to 2606:4700:50::adf5:3a97, 2803:f800:50::6ca2:c097, 2a06:98c1:50::ac40:2097, 108.162.192.151, 172.64.32.151 and 173.245.58.151; nash.ns.cloudflare.com points to 2606:4700:58::adf5:3bd1, 2803:f800:50::6ca2:c1d1, 2a06:98c1:50::ac40:21d1, 108.162.193.209, 172.64.33.209 and 173.245.59.209

duoduotang.com - robtex.com

duoduotang.com

com

Same first word

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

📌 Glue Records Collected

Analysis

IP Addresses

Name Servers

`duoduotang.com`

`com`