`yooudao.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3030::6815:2c68^{🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3033::ac43:c6b9^{🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.44.104^{Cloudflare104.21.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.198.185^{🇺🇸 Cloudflare172.67.192.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`hayes.ns.cloudflare.com` ⭐
		A	2606:4700:58::a29f:2cf5^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`hayes.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c3f5^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`hayes.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:23f5^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`hayes.ns.cloudflare.com`
		A	108.162.195.245^{🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`hayes.ns.cloudflare.com`
		A	162.159.44.245^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`hayes.ns.cloudflare.com`
		A	172.64.35.245^{🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`hayes.ns.cloudflare.com`
NS	`keyla.ns.cloudflare.com`
		A	2606:4700:50::a29f:26aa^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`keyla.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c2aa^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`keyla.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:22aa^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`keyla.ns.cloudflare.com`
		A	108.162.194.170^{🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`keyla.ns.cloudflare.com`
		A	162.159.38.170^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`keyla.ns.cloudflare.com`
		A	172.64.34.170^{🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`keyla.ns.cloudflare.com`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4	104.21.44.104, 172.67.198.185
		IPv6	2606:4700:3030::6815:2c68, 2606:4700:3033::ac43:c6b9
SOA	`hayes.ns.cloudflare.com`dns@cloudflare.com serial=2399142408

`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

yooudao.com

Similar names

youodao.com

youdaoo.com

DNS History

26 records (6 active, 20 former)

○NSdns1.iidns.com2015-07-07 → 2017-03-19 · 4 obs

● 2015-07-07 01:25:32
● 2017-03-19 11:22:38
○ 2020-03-07 12:00:06
○ 2026-03-18 14:01:26

○NSdns2.iidns.com2015-07-07 → 2015-07-07 · 3 obs

● 2015-07-07 01:25:32
○ 2017-03-19 11:22:38
○ 2026-03-18 14:01:26

○NSdns3.iidns.com2015-07-07 → 2015-07-07 · 3 obs

● 2015-07-07 01:25:32
○ 2017-03-19 11:22:38
○ 2026-03-18 14:01:26

○NSdns4.iidns.com2015-07-07 → 2015-07-07 · 3 obs

● 2015-07-07 01:25:32
○ 2017-03-19 11:22:38
○ 2026-03-18 14:01:26

○NSdns5.iidns.com2015-07-07 → 2015-07-07 · 3 obs

● 2015-07-07 01:25:32
○ 2017-03-19 11:22:38
○ 2026-03-18 14:01:26

○NSdns6.iidns.com2015-07-07 → 2016-07-10 · 4 obs

● 2015-07-07 01:25:32
● 2016-07-10 06:07:34
○ 2017-03-19 11:22:38
○ 2026-03-18 14:01:26

○NSf1g1ns1.dnspod.net2020-03-07 → 2020-03-07 · 4 obs

○ 2017-03-19 11:22:38
● 2020-03-07 12:00:06
○ 2026-02-25 01:13:14
○ 2026-03-18 14:01:26

○NSf1g1ns2.dnspod.net2020-03-07 → 2020-03-07 · 4 obs

○ 2017-03-19 11:22:38
● 2020-03-07 12:00:06
○ 2026-02-25 01:13:14
○ 2026-03-18 14:01:26

●NShayes.ns.cloudflare.com2026-02-25 → 2026-03-18 · 3 obs

○ 2020-03-07 12:00:06
● 2026-02-25 01:13:14
● 2026-03-18 14:01:26

●NSkeyla.ns.cloudflare.com2026-02-25 → 2026-03-18 · 3 obs

○ 2020-03-07 12:00:06
● 2026-02-25 01:13:14
● 2026-03-18 14:01:26

○MXmxbiz1.qq.com2020-03-07 → 2020-03-07 · 3 obs

● 2020-03-07 12:00:06
○ 2026-02-25 01:13:14
○ 2026-03-18 14:01:26

○MXmxbiz2.qq.com2020-03-07 → 2020-03-07 · 3 obs

● 2020-03-07 12:00:06
○ 2026-02-25 01:13:14
○ 2026-03-18 14:01:26

○A103.215.214.182020-03-07 → 2020-03-07 · 4 obs

○ 2017-03-19 11:22:38
● 2020-03-07 12:00:06
○ 2026-02-25 01:13:14
○ 2026-03-18 14:01:26

○A103.241.230.1352017-03-19 → 2017-03-19 · 4 obs

○ 2016-07-10 06:07:34
● 2017-03-19 11:22:38
○ 2020-03-07 12:00:06
○ 2026-03-18 14:01:26

○A103.241.230.1372017-03-19 → 2017-03-19 · 4 obs

○ 2016-07-10 06:07:34
● 2017-03-19 11:22:38
○ 2020-03-07 12:00:06
○ 2026-03-18 14:01:26

○A103.241.230.1382017-03-19 → 2017-03-19 · 4 obs

○ 2016-07-10 06:07:34
● 2017-03-19 11:22:38
○ 2020-03-07 12:00:06
○ 2026-03-18 14:01:26

○A103.241.230.1392017-03-19 → 2017-03-19 · 4 obs

○ 2016-07-10 06:07:34
● 2017-03-19 11:22:38
○ 2020-03-07 12:00:06
○ 2026-03-18 14:01:26

●A104.21.44.1042026-02-25 → 2026-03-18 · 3 obs

○ 2020-03-07 12:00:06
● 2026-02-25 01:13:14
● 2026-03-18 14:01:26

○A107.167.19.742016-07-10 → 2016-07-10 · 4 obs

○ 2015-07-07 01:25:32
● 2016-07-10 06:07:34
○ 2017-03-19 11:22:38
○ 2026-03-18 14:01:26

○A107.167.19.752016-07-10 → 2016-07-10 · 4 obs

○ 2015-07-07 01:25:32
● 2016-07-10 06:07:34
○ 2017-03-19 11:22:38
○ 2026-03-18 14:01:26

●A172.67.198.1852026-02-25 → 2026-03-18 · 3 obs

○ 2020-03-07 12:00:06
● 2026-02-25 01:13:14
● 2026-03-18 14:01:26

○A198.148.92.872015-07-07 → 2015-07-07 · 3 obs

● 2015-07-07 01:25:32
○ 2026-02-25 01:13:14
○ 2026-03-18 14:01:26

○A198.148.92.882015-07-07 → 2015-07-07 · 3 obs

● 2015-07-07 01:25:32
○ 2026-02-25 01:13:14
○ 2026-03-18 14:01:26

●A2606:4700:3030::6815:2c682026-02-25 → 2026-03-18 · 3 obs

○ 2020-03-07 12:00:06
● 2026-02-25 01:13:14
● 2026-03-18 14:01:26

●A2606:4700:3033::ac43:c6b92026-02-25 → 2026-03-18 · 3 obs

○ 2020-03-07 12:00:06
● 2026-02-25 01:13:14
● 2026-03-18 14:01:26

○CNAMEcs.ename.net2015-07-07 → 2017-03-19 · 4 obs

● 2015-07-07 01:25:32
● 2017-03-19 11:22:38
○ 2020-03-07 12:00:06
○ 2026-03-18 14:01:26

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	c.gtld-servers.net, e.gtld-servers.net, m.gtld-servers.net, i.gtld-servers.net...	-
yooudao.com	keyla.ns.cloudflare.com, hayes.ns.cloudflare.com	12 records

✅ Authoritative Response

Server: 108.162.194.170

NS records: keyla.ns.cloudflare.com, hayes.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for yooudao.com (unsigned zone)

⏱️ Timing

Total: 352ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.44.104, 172.67.198.185`
AAAA	2	`2606:4700:3033::ac43:c6b9, 2606:4700:3030::6815:2c68`
NS	2	`hayes.ns.cloudflare.com, keyla.ns.cloudflare.com`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`hayes.ns.cloudflare.com dns.cloudflare.c`

📌 Glue Records Collected

Total: 12

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

Analysis

IP Addresses

yooudao.com points to four IP numbers: 2606:4700:3030::6815:2c68, 2606:4700:3033::ac43:c6b9, 104.21.44.104 and 172.67.198.185.

Other host names including mail.funeralboardroom.com, zghuixin.com, sip.vn, 678ba.com and earthaidsupply.com share IP numbers with yooudao.com.

Name Servers

yooudao.com's delegation uses two name servers, hayes.ns.cloudflare.com and keyla.ns.cloudflare.com.

yooudao.com shares the same name server setup as other domains, for example daguangtravels.com, whjiyunfa.com, o17y.com, chinafuya.com and thegreendoorchs.com.

yooudao.com at least partially shares name servers with other domains, including e0a5cbbb0d.com, tecnicos.pt, xxmh470.com, chinaeverbrightbank.com and 1red.net.

These name servers are commonly used with nola.ns.cloudflare.com and nero.ns.cloudflare.com.

Host names with six IP numbers:

hayes.ns.cloudflare.com points to: 2606:4700:58::a29f:2cf5, 2803:f800:50::6ca2:c3f5, 2a06:98c1:50::ac40:23f5, 108.162.195.245, 162.159.44.245 and 172.64.35.245.

keyla.ns.cloudflare.com points to: 2606:4700:50::a29f:26aa, 2803:f800:50::6ca2:c2aa, 2a06:98c1:50::ac40:22aa, 108.162.194.170, 162.159.38.170 and 172.64.34.170.

yooudao.com - robtex.com

yooudao.com

com

Same first word

Similar names

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

📌 Glue Records Collected

Analysis

IP Addresses

Name Servers

`yooudao.com`

`com`