lubc.cn - robtex.com

lubc.cn

DNSSEC⚠️ Not signed
A2606:4700:3030::6815:2807🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3036::ac43:ad76🇺🇸 Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.40.7Cloudflare104.21.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.173.118🇺🇸 Cloudflare172.67.160.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSelsa.ns.cloudflare.com ⭐
A2606:4700:50::adf5:3a6f🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRelsa.ns.cloudflare.com
A2803:f800:50::6ca2:c06f🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRelsa.ns.cloudflare.com
A2a06:98c1:50::ac40:206f🇺🇸 Cloudflare2a06:98c1:50::/45
PTRelsa.ns.cloudflare.com
A108.162.192.111🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRelsa.ns.cloudflare.com
A172.64.32.111🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRelsa.ns.cloudflare.com
A173.245.58.111🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRelsa.ns.cloudflare.com
NSridge.ns.cloudflare.com
A2606:4700:58::a29f:2c8b🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRridge.ns.cloudflare.com
A2803:f800:50::6ca2:c38b🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRridge.ns.cloudflare.com
A2a06:98c1:50::ac40:238b🇺🇸 Cloudflare2a06:98c1:50::/45
PTRridge.ns.cloudflare.com
A108.162.195.139🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRridge.ns.cloudflare.com
A162.159.44.139Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRridge.ns.cloudflare.com
A172.64.35.139🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRridge.ns.cloudflare.com
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.40.7, 172.67.173.118
IPv6 hints2606:4700:3030::6815:2807, 2606:4700:3036::ac43:ad76
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=211, name=cloudflare-ech.com
SOAelsa.ns.cloudflare.comdns@cloudflare.com serial=2402714843

cn

DNSSEC🔒 Signed (DS record present)
NSa.dns.cn ⭐
NSb.dns.cn
NSc.dns.cn
NSd.dns.cn
NSe.dns.cn
NSns.cernet.net ⚠️ Not in parent delegation
SOAa.dns.cnroot@cnnic.cn serial=2034715392

Same first word

lubc.cn
lubc.com
lubc.ca
lubc.shop

Similar names

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club.s3.amazonaws.com
ulcb.edu.pe
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club.plus
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culb.ru
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culb.com

DNS History

13 records (6 active, 7 former)

2017201820192020202120222023202420252026NSelsa.ns.cloudflare.comridge.ns.cloudflare.comdns10.hichina.comdns9.hichina.comns1.nowcndns.comns2.nowcndns.comA104.21.40.7172.67.173.1182606:4700:3030::6815:28072606:4700:3036::ac43:ad76222.167.192.11247.90.61.75CNAMEi.mgj.wang
○NSdns10.hichina.com2016-11-20 → 2016-11-20 · 3 obs
● 2016-11-20 06:09:50
○ 2026-03-10 07:27:28
○ 2026-04-26 20:10:30
○NSdns9.hichina.com2016-11-20 → 2016-11-20 · 3 obs
● 2016-11-20 06:09:50
○ 2026-03-10 07:27:28
○ 2026-04-26 20:10:30
●NSelsa.ns.cloudflare.com2026-04-23 → 2026-04-26 · 3 obs
○ 2026-04-13 07:59:44
● 2026-04-23 04:22:40
● 2026-04-26 20:10:30
○NSns1.nowcndns.com2026-03-10 → 2026-04-13 · 5 obs
○ 2016-11-20 06:09:50
● 2026-03-10 07:27:28
● 2026-04-13 07:59:44
○ 2026-04-23 04:22:40
○ 2026-04-26 20:10:30
○NSns2.nowcndns.com2026-03-10 → 2026-04-13 · 5 obs
○ 2016-11-20 06:09:50
● 2026-03-10 07:27:28
● 2026-04-13 07:59:44
○ 2026-04-23 04:22:40
○ 2026-04-26 20:10:30
●NSridge.ns.cloudflare.com2026-04-23 → 2026-04-26 · 3 obs
○ 2026-04-13 07:59:44
● 2026-04-23 04:22:40
● 2026-04-26 20:10:30
●A104.21.40.72026-04-23 → 2026-04-26 · 3 obs
○ 2026-04-12 21:51:36
● 2026-04-23 04:22:40
● 2026-04-26 20:10:30
●A172.67.173.1182026-04-23 → 2026-04-26 · 3 obs
○ 2026-04-12 21:51:36
● 2026-04-23 04:22:40
● 2026-04-26 20:10:30
○A222.167.192.1122026-03-10 → 2026-04-06 · 5 obs
○ 2016-11-20 06:09:50
● 2026-03-10 07:27:28
● 2026-04-06 12:34:34
○ 2026-04-12 21:51:36
○ 2026-04-26 20:10:30
●A2606:4700:3030::6815:28072026-04-23 → 2026-04-26 · 3 obs
○ 2026-04-12 21:51:36
● 2026-04-23 04:22:40
● 2026-04-26 20:10:30
●A2606:4700:3036::ac43:ad762026-04-23 → 2026-04-26 · 3 obs
○ 2026-04-12 21:51:36
● 2026-04-23 04:22:40
● 2026-04-26 20:10:30
○A47.90.61.752016-11-20 → 2016-11-20 · 3 obs
● 2016-11-20 06:09:50
○ 2026-03-10 07:27:28
○ 2026-04-26 20:10:30
○CNAMEi.mgj.wang2016-11-20 → 2016-11-20 · 3 obs
● 2016-11-20 06:09:50
○ 2026-03-10 07:27:28
○ 2026-04-26 20:10:30

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
cnd.dns.cn, b.dns.cn, a.dns.cn, c.dns.cn...-
lubc.cnelsa.ns.cloudflare.com, ridge.ns.cloudflare.com-

✅ Authoritative Response

Server:108.162.195.139

NS records: elsa.ns.cloudflare.com, ridge.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for lubc.cn (unsigned zone)

⏱️ Timing

Total: 879ms | Queries: -

📄 Records

TypeCountSample Data
A2104.21.40.7, 172.67.173.118
AAAA22606:4700:3030::6815:2807, 2606:4700:3036::ac43:ad76
NS2elsa.ns.cloudflare.com, ridge.ns.cloudflare.com
HTTPS1{"priority":1,"target":".","alpn":["h3",
SOA1elsa.ns.cloudflare.com dns.cloudflare.co

Analysis

IP Addresses

lubc.cn resolves to four IPs: 2606:4700:3030::6815:2807, 2606:4700:3036::ac43:ad76, 104.21.40.7 and 172.67.173.118.

Other host names such as cpanel.ketosidefit.site, www.cdomdeacons.com, lumiflex.in, 3esk.store and spiritwanderer.com share IP numbers with lubc.cn.

Name Servers

lubc.cn is delegated to two name servers: elsa.ns.cloudflare.com and ridge.ns.cloudflare.com.

lubc.cn uses the same name server setup as other domains, including yhb17.com, wwwg1.cn, clubd2.cn, small-happiness.cn and wmhyw.cn.

At least part of the name servers for lubc.cn are shared with other domains, for instance vngit.com, 698447-coinbase.com, noteecho360.com, spotine.com and scn51.ru.

These name servers are often used together with trace.ns.cloudflare.com, faye.ns.cloudflare.com and mona.ns.cloudflare.com.

Host names with six IP numbers:

elsa.ns.cloudflare.com points to: 2606:4700:50::adf5:3a6f, 2803:f800:50::6ca2:c06f, 2a06:98c1:50::ac40:206f, 108.162.192.111, 172.64.32.111 and 173.245.58.111.

ridge.ns.cloudflare.com points to: 2606:4700:58::a29f:2c8b, 2803:f800:50::6ca2:c38b, 2a06:98c1:50::ac40:238b, 108.162.195.139, 162.159.44.139 and 172.64.35.139.