`duoduo99.com`

CNAME	`cdn.duoduo99.com`
CNAME	`ukraine.ua`
DNSSEC	⚠️ Not signed
A	2606:4700::6812:610^{🇺🇸 Cloudflare2606:4700::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700::6812:710^{🇺🇸 Cloudflare2606:4700::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.18.6.16^{Cloudflare104.18.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.18.7.16^{Cloudflare104.18.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`crystal.ns.cloudflare.com` ⭐
		A	2606:4700:50::a29f:26ca^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`crystal.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c2ca^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`crystal.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:22ca^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`crystal.ns.cloudflare.com`
		A	108.162.194.202^{🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`crystal.ns.cloudflare.com`
		A	162.159.38.202^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`crystal.ns.cloudflare.com`
		A	172.64.34.202^{🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`crystal.ns.cloudflare.com`
NS	`sam.ns.cloudflare.com`
		A	2606:4700:58::adf5:3b8d^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`sam.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c18d^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`sam.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:218d^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`sam.ns.cloudflare.com`
		A	108.162.193.141^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`sam.ns.cloudflare.com`
		A	172.64.33.141^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`sam.ns.cloudflare.com`
		A	173.245.59.141^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`sam.ns.cloudflare.com`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4	104.18.6.16, 104.18.7.16
		IPv6	2606:4700::6812:610, 2606:4700::6812:710
SOA	`crystal.ns.cloudflare.com`dns@cloudflare.com serial=2394747359

`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

Similar names

99doudou.com

doudou99.com

99doudou.cn

DNS History

6 records (3 active, 3 former)

●NSdirector.dnspod.net2026-02-28 → 2026-02-28 · 3 obs

○ 2019-12-30 11:08:28
● 2026-02-28 15:19:28
● 2026-02-28 15:19:30

○NSdns10.hichina.com2015-07-04 → 2017-01-20 · 4 obs

● 2015-07-04 06:36:44
● 2017-01-20 23:10:12
○ 2019-12-30 11:08:28
○ 2026-02-28 15:19:30

○NSdns9.hichina.com2015-07-04 → 2017-01-20 · 4 obs

● 2015-07-04 06:36:44
● 2017-01-20 23:10:12
○ 2019-12-30 11:08:28
○ 2026-02-28 15:19:30

●NSsnowfall.dnspod.net2026-02-28 → 2026-02-28 · 3 obs

○ 2019-12-30 11:08:28
● 2026-02-28 15:19:28
● 2026-02-28 15:19:30

○A47.89.58.322017-01-20 → 2017-01-20 · 3 obs

● 2017-01-20 23:10:12
○ 2019-12-30 11:08:28
○ 2026-02-28 15:19:30

●CNAMEcdn.duoduo99.com2026-02-28 → 2026-02-28 · 2 obs

● 2026-02-28 15:19:28
● 2026-02-28 15:19:30

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	l.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net...	-
duoduo99.com	snowfall.dnspod.net, director.dnspod.net	-

✅ Authoritative Response

Server: 101.227.168.35

NS records: snowfall.dnspod.net, director.dnspod.net

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for duoduo99.com (unsigned zone)

⏱️ Timing

Total: 648ms | Queries: -

📄 Records

Type	Count	Sample Data
NS	2	`snowfall.dnspod.net, director.dnspod.net`
CNAME	1	`cdn.duoduo99.com`
SOA	1	`snowfall.dnspod.net freednsadmin.dnspod.`

Analysis

IP Addresses

duoduo99.com points to four IP numbers: 2606:4700::6812:610, 2606:4700::6812:710, 104.18.6.16 and 104.18.7.16.

Other host names, for instance oasisreporting.com, tunnel-oscar.gonzalez.bcds.net, napsterinteractiveradio.com, k8stest.lbrdev.com and api.leju.com.tw.cdn.cloudflare.net share IP numbers with duoduo99.com.

Name Servers

duoduo99.com's delegation is to two name servers crystal.ns.cloudflare.com and sam.ns.cloudflare.com.

duoduo99.com shares the same name server configuration as other domains, such as dml.ir, tell.ly, mediacenter.org.ua, ukraine.ua and sjostamp.eu.com.

duoduo99.com at least partially shares its name servers with other domains, for instance begravelsesguiden.dk, 66930111.com, wzsxwjh.com, dudujiqiren.com and allarguments.ru.

These name servers are commonly used alongside thaddeus.ns.cloudflare.com and apollo.ns.cloudflare.com.

Host names with six IP numbers:

crystal.ns.cloudflare.com points to: 2606:4700:50::a29f:26ca, 2803:f800:50::6ca2:c2ca, 2a06:98c1:50::ac40:22ca, 108.162.194.202, 162.159.38.202 and 172.64.34.202.

sam.ns.cloudflare.com points to: 2606:4700:58::adf5:3b8d, 2803:f800:50::6ca2:c18d, 2a06:98c1:50::ac40:218d, 108.162.193.141, 172.64.33.141 and 173.245.59.141.

duoduo99.com - robtex.com

duoduo99.com

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