`youdao-app.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3033::ac43:ad9b^{🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3037::6815:603d^{🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.96.61^{Cloudflare104.21.96.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.173.155^{🇺🇸 Cloudflare172.67.160.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`christian.ns.cloudflare.com` ⭐
		A	2606:4700:58::a29f:2cf7^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`christian.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c3f7^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`christian.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:23f7^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`christian.ns.cloudflare.com`
		A	108.162.195.247^{🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`christian.ns.cloudflare.com`
		A	162.159.44.247^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`christian.ns.cloudflare.com`
		A	172.64.35.247^{🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`christian.ns.cloudflare.com`
NS	`reza.ns.cloudflare.com`
		A	2606:4700:50::adf5:3ad9^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`reza.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c0d9^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`reza.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:20d9^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`reza.ns.cloudflare.com`
		A	108.162.192.217^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`reza.ns.cloudflare.com`
		A	172.64.32.217^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`reza.ns.cloudflare.com`
		A	173.245.58.217^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`reza.ns.cloudflare.com`
TXT	`google-site-verification=LRu3UqyZA11rjOJorJQ7DvKnlVgYMU0uvXi2oNP3atw`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.96.61, 172.67.173.155
		IPv6 hints	2606:4700:3033::ac43:ad9b, 2606:4700:3037::6815:603d
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=227, name=cloudflare-ech.com
SOA	`christian.ns.cloudflare.com`dns@cloudflare.com serial=2408844777

`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=1785637462

Same first word

youdao-app.org

youdao-app.com

Similar names

app-youdao.org

DNS History

11 records (6 active, 5 former)

●NSchristian.ns.cloudflare.com2026-04-27 → 2026-08-02 · 2 obs

● 2026-04-27 14:51:06
● 2026-08-02 02:34:54

●NSreza.ns.cloudflare.com2026-04-27 → 2026-08-02 · 2 obs

● 2026-04-27 14:51:06
● 2026-08-02 02:34:54

●A104.21.96.612026-04-27 → 2026-08-02 · 5 obs

● 2026-04-27 14:51:06
● 2026-05-15 21:19:26
○ 2026-05-26 16:02:54
● 2026-07-19 14:47:16
● 2026-08-02 02:34:54

●A172.67.173.1552026-04-27 → 2026-08-02 · 5 obs

● 2026-04-27 14:51:06
● 2026-05-15 21:19:26
○ 2026-05-26 16:02:54
● 2026-07-19 14:47:16
● 2026-08-02 02:34:54

○A188.114.96.02026-05-26 → 2026-05-26 · 4 obs

○ 2026-05-15 21:19:26
● 2026-05-26 16:02:54
○ 2026-07-19 14:47:16
○ 2026-08-02 02:34:54

○A188.114.97.02026-05-26 → 2026-05-26 · 4 obs

○ 2026-05-15 21:19:26
● 2026-05-26 16:02:54
○ 2026-07-19 14:47:16
○ 2026-08-02 02:34:54

●A2606:4700:3033::ac43:ad9b2026-04-27 → 2026-08-02 · 5 obs

● 2026-04-27 14:51:06
● 2026-05-15 21:19:26
○ 2026-05-26 16:02:54
● 2026-07-19 14:47:16
● 2026-08-02 02:34:54

○A2606:4700:3035::6815:603d2026-04-27 → 2026-05-15 · 4 obs

● 2026-04-27 14:51:06
● 2026-05-15 21:19:26
○ 2026-05-26 16:02:54
○ 2026-08-02 02:34:54

●A2606:4700:3037::6815:603d2026-07-19 → 2026-08-02 · 3 obs

○ 2026-05-26 16:02:54
● 2026-07-19 14:47:16
● 2026-08-02 02:34:54

○A2a06:98c1:3120::2026-05-26 → 2026-05-26 · 4 obs

○ 2026-05-15 21:19:26
● 2026-05-26 16:02:54
○ 2026-07-19 14:47:16
○ 2026-08-02 02:34:54

○A2a06:98c1:3121::2026-05-26 → 2026-05-26 · 4 obs

○ 2026-05-15 21:19:26
● 2026-05-26 16:02:54
○ 2026-07-19 14:47:16
○ 2026-08-02 02:34:54

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
youdao-app.com	reza.ns.cloudflare.com, christian.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.192.217

NS records: reza.ns.cloudflare.com, christian.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for youdao-app.com (unsigned zone)

⏱️ Timing

Total: 135ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.173.155, 104.21.96.61`
AAAA	2	`2606:4700:3033::ac43:ad9b, 2606:4700:3037::6815:603d`
NS	2	`christian.ns.cloudflare.com, reza.ns.cloudflare.com`
TXT	1	`google-site-verification=LRu3UqyZA11rjOJ`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`christian.ns.cloudflare.com dns.cloudfla`

📌 Glue Records Collected

Total: 12

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

Analysis

IP Addresses

youdao-app.com points to the four IP addresses 104.21.96.61, 172.67.173.155, 2606:4700:3033::ac43:ad9b and 2606:4700:3037::6815:603d.

accesoriosparacaballos.com, 39686.cc, www.be7.pro and two other host names share IP numbers with youdao-app.com.

Name Servers

The NS records for youdao-app.com delegate to christian.ns.cloudflare.com and reza.ns.cloudflare.com.

youdao-app.com uses the same name servers as several other domains — among them rrbrailwayvacancy.com, postofficegdsmtsrecruitment.com, youdao.im and two more.

There is at least partial name server overlap between youdao-app.com and other domains — handwertig.de, jbhy.com, fixart.pt and two more among them.

These name servers are routinely deployed together with the name servers april.ns.cloudflare.com.

Hostnames that resolve to 6 IP addresses:

christian.ns.cloudflare.com maps to 108.162.195.247, 162.159.44.247, 172.64.35.247 and 3 additional IP addresses.

reza.ns.cloudflare.com maps to 108.162.192.217, 172.64.32.217, 173.245.58.217 and 3 additional IP addresses.

youdao-app.com - robtex.com

youdao-app.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

`youdao-app.com`

`com`