4u.org.cn - robtex.com

4u.org.cn

DNSSEC⚠️ Not signed
A2606:4700:3033::6815:1ead🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3034::ac43:ad79🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.30.173Cloudflare104.21.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.173.121🇺🇸 Cloudflare172.67.160.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSfiona.ns.cloudflare.com ⭐
A2606:4700:50::adf5:3a9d🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRfiona.ns.cloudflare.com
A2803:f800:50::6ca2:c09d🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRfiona.ns.cloudflare.com
A2a06:98c1:50::ac40:209d🇺🇸 Cloudflare2a06:98c1:50::/45
PTRfiona.ns.cloudflare.com
A108.162.192.157🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRfiona.ns.cloudflare.com
A172.64.32.157🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRfiona.ns.cloudflare.com
A173.245.58.157🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRfiona.ns.cloudflare.com
NShassan.ns.cloudflare.com
A2606:4700:58::a29f:2c95🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRhassan.ns.cloudflare.com
A2803:f800:50::6ca2:c395🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRhassan.ns.cloudflare.com
A2a06:98c1:50::ac40:2395🇺🇸 Cloudflare2a06:98c1:50::/45
PTRhassan.ns.cloudflare.com
A108.162.195.149🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRhassan.ns.cloudflare.com
A162.159.44.149Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRhassan.ns.cloudflare.com
A172.64.35.149🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRhassan.ns.cloudflare.com
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.30.173, 172.67.173.121
IPv6 hints2606:4700:3033::6815:1ead, 2606:4700:3034::ac43:ad79
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=148, name=cloudflare-ech.com
SOAfiona.ns.cloudflare.comdns@cloudflare.com serial=2409150247

org.cn

DNSSEC⚠️ Not signed
NSa.dns.cn ⭐ ⚠️ Not in parent delegation
NSb.dns.cn ⚠️ Not in parent delegation
NSc.dns.cn ⚠️ Not in parent delegation
NScns.cernet.net ⚠️ Not in parent delegation
NSd.dns.cn ⚠️ Not in parent delegation
NSe.dns.cn ⚠️ Not in parent delegation
SOAa.dns.cnroot@cnnic.cn serial=2027877688
WOT: SAFE (27/100)

Same first word

4u.md
4u.ai
4u.parts
4u.sr
4u.su
4u.ie
4u.cn
4u.am
4u.fyi
4u.cl
4u.hk
4u.tel
4u.net
4u.game
4u.biz
4u.sk
4u.nl
4u.co
4u.uk
4u.org.cn
4u.co.za
4u.com.br
4u.vc
4u.sy
4u.plus
4u.org
4u.house
4u.to
4u.vg
4u.zone
4u.fi
4u.ee
4u.uz
4u.business
4u.pl
4u.cm
4u.net.tw
4u.de
4u.neustar
4u.la
4u.hu
4u.mt
4u.cz
4u.network
4u.be
4u.sg
4u.pt
4u.ru
4u.lt
4u.gr
4u.eu
4u.edu.pl
4u.cc
4u.com.vn
4u.com
4u.no
4u.ms
4u.pw
4u.co.kr
4u.tv
4u.cx

Similar names

u4.org.ph
u4.fr
u4.cn
u4.no
u4.org
u4.co.uk
u4.tv
u4.pl
u4.cz
u4.com
u4.lt
u4.at
u4.hu
u4.net
u4.ru
u4.biz
u4.eu
u4.be
u4.su
u4.ink
u4.co.nz
u4.nl
u4.de
u4.gmbh
u4.ca

DNS History

8 records (6 active, 2 former)

NSfiona.ns.cloudflare.comhassan.ns.cloudflare.comns1.nowcndns.comns2.nowcndns.comA104.21.30.173172.67.173.1212606:4700:3033::6815:1ead2606:4700:3034::ac43:ad79
●NSfiona.ns.cloudflare.com2026-07-13 → 2026-07-13 · 2 obs
○ 2026-05-29 04:40:22
● 2026-07-13 12:38:34
●NShassan.ns.cloudflare.com2026-07-13 → 2026-07-13 · 2 obs
○ 2026-05-29 04:40:22
● 2026-07-13 12:38:34
○NSns1.nowcndns.com2026-05-24 → 2026-05-29 · 3 obs
● 2026-05-24 11:25:20
● 2026-05-29 04:40:22
○ 2026-07-13 12:38:34
○NSns2.nowcndns.com2026-05-24 → 2026-05-29 · 3 obs
● 2026-05-24 11:25:20
● 2026-05-29 04:40:22
○ 2026-07-13 12:38:34
●A104.21.30.1732026-07-13 → 2026-07-13 · 1 obs
● 2026-07-13 12:38:34
●A172.67.173.1212026-07-13 → 2026-07-13 · 1 obs
● 2026-07-13 12:38:34
●A2606:4700:3033::6815:1ead2026-07-13 → 2026-07-13 · 1 obs
● 2026-07-13 12:38:34
●A2606:4700:3034::ac43:ad792026-07-13 → 2026-07-13 · 1 obs
● 2026-07-13 12:38:34

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
cnd.dns.cn, a.dns.cn, b.dns.cn, c.dns.cn...-
4u.org.cnfiona.ns.cloudflare.com, hassan.ns.cloudflare.com-

✅ Authoritative Response

Server:172.64.35.149

NS records: fiona.ns.cloudflare.com, hassan.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for 4u.org.cn (unsigned zone)

⏱️ Timing

Total: 892ms | Queries: -

📄 Records

TypeCountSample Data
A2104.21.30.173, 172.67.173.121
AAAA22606:4700:3033::6815:1ead, 2606:4700:3034::ac43:ad79
NS2fiona.ns.cloudflare.com, hassan.ns.cloudflare.com
HTTPS1{"priority":1,"target":".","alpn":["h3",
SOA1fiona.ns.cloudflare.com dns.cloudflare.c

Analysis

IP Addresses

4u.org.cn directs to four IP numbers, which are 104.21.30.173, 172.67.173.121, 2606:4700:3033::6815:1ead and 2606:4700:3034::ac43:ad79.

Two other host names, along with saniderm.com, basvanlierschrijft.nl and www.oneupsti.com.br, also share IP numbers with 4u.org.cn.

Name Servers

DNS delegation for 4u.org.cn points to two name servers: fiona.ns.cloudflare.com and hassan.ns.cloudflare.com.

4u.org.cn shares its NS records with other domains, for example ddwl.org.cn, kldg.com.cn, waston.com.cn and two others.

There is at least partial name server overlap between 4u.org.cn and other domains — wd211.cn, happycomputers.com, tg77722.com and two more among them.

DNS names with 6 IP addresses:

fiona.ns.cloudflare.com has IP addresses 108.162.192.157, 172.64.32.157 and 173.245.58.157, plus 3 other.

hassan.ns.cloudflare.com has IP addresses 108.162.195.149, 162.159.44.149 and 172.64.35.149, plus 3 other.