`fbuc.cn`

DNSSEC	⚠️ Not signed
A	2606:4700:3031::ac43:b0f1^{🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3036::6815:3346^{🇺🇸 Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.51.70^{Cloudflare104.21.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.176.241^{🇺🇸 Cloudflare172.67.176.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`damian.ns.cloudflare.com` ⭐
		A	2606:4700:58::a29f:2c32^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`damian.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c332^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`damian.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2332^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`damian.ns.cloudflare.com`
		A	108.162.195.50^{🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`damian.ns.cloudflare.com`
		A	162.159.44.50^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`damian.ns.cloudflare.com`
		A	172.64.35.50^{🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`damian.ns.cloudflare.com`
NS	`norah.ns.cloudflare.com`
		A	2606:4700:50::a29f:2646^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`norah.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c246^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`norah.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2246^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`norah.ns.cloudflare.com`
		A	108.162.194.70^{🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`norah.ns.cloudflare.com`
		A	162.159.38.70^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`norah.ns.cloudflare.com`
		A	172.64.34.70^{🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`norah.ns.cloudflare.com`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.51.70, 172.67.176.241
		IPv6 hints	2606:4700:3031::ac43:b0f1, 2606:4700:3036::6815:3346
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=109, name=cloudflare-ech.com
SOA	`damian.ns.cloudflare.com`dns@cloudflare.com serial=2409679496

`cn`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a.dns.cn` ⭐
	NS	`b.dns.cn`
	NS	`c.dns.cn`
	NS	`d.dns.cn`
	NS	`e.dns.cn`
	NS	`ns.cernet.net` ⚠️ Not in parent delegation
	SOA	`a.dns.cn`root@cnnic.cn serial=2035113590

Same first word

fbuc.org

fbuc.de

fbuc.ru

fbuc.com

fbuc.cn

fbuc.co.za

Similar names

ufbc.co.nz

fcbu.org.tw

ubcf.org.uk

ubfc.com

fbcu.com.br

bcfu.cn

bfcu.com

cbuf.com

cfbu.cn

ufbc.live

fcub.info

bufc.cn

ucfb.de

fubc.ru

ucfb.ac.uk

bufc.co.za

fubc.co.nz

ucfb.net

ucfb.info

fcub.org

bufc.org

ubfc.net

ubfc.fr

ucbf.org

bucf.com

cfbu.cz

bcuf.org

bcfu.com

ufcb.net

cubf.cn

ufcb.com

ucfb.com

bfuc.cn

cfub.com

fcub.de

ubcf.com

ubcf.info

bfcu.org

cubf.com

cufb.com

fucb.cn

bufc.net

ucbf.com

bfcu.info

bcuf.com

cfbu.dk

fcub.com

fbcu.com

cbuf.org

fcbu.com

ubcf.ca

bfcu.net

bfuc.org

bufc.com

fubc.net

cbuf.dk

fbcu.org

ufcb.us

cfbu.ca

fcbu.info

cbuf.jp

ubcf.org

cbfu.com

fcub.net

fubc.org

cfbu.com

cubf.xyz

bfuc.com

bufc.co.uk

DNS History

21 records (6 active, 15 former)

●NSdamian.ns.cloudflare.com2026-07-31 → 2026-07-31 · 3 obs

○ 2026-04-30 23:45:28
● 2026-07-31 00:35:36
● 2026-07-31 00:35:40

○NSdns1.iidns.com2016-03-27 → 2016-09-10 · 4 obs

● 2016-03-27 22:04:52
● 2016-09-10 09:50:06
○ 2017-05-12 22:43:28
○ 2026-07-31 00:35:40

○NSdns2.iidns.com2016-03-27 → 2016-09-10 · 4 obs

● 2016-03-27 22:04:52
● 2016-09-10 09:50:06
○ 2017-05-12 22:43:28
○ 2026-07-31 00:35:40

○NSdns3.iidns.com2016-03-27 → 2016-09-10 · 4 obs

● 2016-03-27 22:04:52
● 2016-09-10 09:50:06
○ 2017-05-12 22:43:28
○ 2026-07-31 00:35:40

○NSdns4.iidns.com2016-03-27 → 2016-09-10 · 4 obs

● 2016-03-27 22:04:52
● 2016-09-10 09:50:06
○ 2017-05-12 22:43:28
○ 2026-07-31 00:35:40

○NSdns5.iidns.com2016-03-27 → 2016-09-10 · 4 obs

● 2016-03-27 22:04:52
● 2016-09-10 09:50:06
○ 2017-05-12 22:43:28
○ 2026-07-31 00:35:40

○NSdns6.iidns.com2016-03-27 → 2016-09-10 · 4 obs

● 2016-03-27 22:04:52
● 2016-09-10 09:50:06
○ 2017-05-12 22:43:28
○ 2026-07-31 00:35:40

○NSjaziel.ns.cloudflare.com2026-04-30 → 2026-04-30 · 4 obs

○ 2017-05-12 22:43:28
● 2026-04-30 23:45:28
○ 2026-07-31 00:35:36
○ 2026-07-31 00:35:40

○NSjessica.ns.cloudflare.com2026-04-30 → 2026-04-30 · 4 obs

○ 2017-05-12 22:43:28
● 2026-04-30 23:45:28
○ 2026-07-31 00:35:36
○ 2026-07-31 00:35:40

●NSnorah.ns.cloudflare.com2026-07-31 → 2026-07-31 · 3 obs

○ 2026-04-30 23:45:28
● 2026-07-31 00:35:36
● 2026-07-31 00:35:40

○NSns1.eedns.com2017-05-12 → 2017-05-12 · 4 obs

○ 2016-09-10 09:50:06
● 2017-05-12 22:43:28
○ 2026-04-30 23:45:28
○ 2026-07-31 00:35:40

○NSns2.eedns.com2017-05-12 → 2017-05-12 · 4 obs

○ 2016-09-10 09:50:06
● 2017-05-12 22:43:28
○ 2026-04-30 23:45:28
○ 2026-07-31 00:35:40

○A104.21.46.2212026-04-30 → 2026-07-14 · 6 obs

○ 2017-05-12 22:43:28
● 2026-04-30 23:45:28
○ 2026-06-22 15:50:06
● 2026-07-14 19:00:30
○ 2026-07-15 04:07:08
○ 2026-07-31 00:35:40

●A104.21.51.702026-07-31 → 2026-07-31 · 3 obs

○ 2026-07-15 04:07:08
● 2026-07-31 00:35:36
● 2026-07-31 00:35:40

○A172.247.242.1962017-05-12 → 2017-05-12 · 3 obs

● 2017-05-12 22:43:28
○ 2026-04-30 23:45:28
○ 2026-07-31 00:35:40

○A172.67.142.2262026-04-30 → 2026-07-14 · 6 obs

○ 2017-05-12 22:43:28
● 2026-04-30 23:45:28
○ 2026-06-22 15:50:06
● 2026-07-14 19:00:30
○ 2026-07-15 04:07:08
○ 2026-07-31 00:35:40

●A172.67.176.2412026-07-31 → 2026-07-31 · 3 obs

○ 2026-07-15 04:07:08
● 2026-07-31 00:35:36
● 2026-07-31 00:35:40

●A2606:4700:3031::ac43:b0f12026-07-31 → 2026-07-31 · 3 obs

○ 2026-07-15 04:07:08
● 2026-07-31 00:35:36
● 2026-07-31 00:35:40

○A2606:4700:3033::6815:2edd2026-04-30 → 2026-07-14 · 6 obs

○ 2017-05-12 22:43:28
● 2026-04-30 23:45:28
○ 2026-06-22 15:50:06
● 2026-07-14 19:00:30
○ 2026-07-15 04:07:08
○ 2026-07-31 00:35:40

○A2606:4700:3034::ac43:8ee22026-04-30 → 2026-07-14 · 6 obs

○ 2017-05-12 22:43:28
● 2026-04-30 23:45:28
○ 2026-06-22 15:50:06
● 2026-07-14 19:00:30
○ 2026-07-15 04:07:08
○ 2026-07-31 00:35:40

●A2606:4700:3036::6815:33462026-07-31 → 2026-07-31 · 3 obs

○ 2026-07-15 04:07:08
● 2026-07-31 00:35:36
● 2026-07-31 00:35:40

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
cn	a.dns.cn, c.dns.cn, e.dns.cn, d.dns.cn...	-
fbuc.cn	norah.ns.cloudflare.com, damian.ns.cloudflare.com	-

✅ Authoritative Response

Server:108.162.194.70

NS records: norah.ns.cloudflare.com, damian.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for fbuc.cn (unsigned zone)

⏱️ Timing

Total: 781ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.51.70, 172.67.176.241`
AAAA	2	`2606:4700:3031::ac43:b0f1, 2606:4700:3036::6815:3346`
NS	2	`damian.ns.cloudflare.com, norah.ns.cloudflare.com`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`damian.ns.cloudflare.com dns.cloudflare.`

Analysis

IP Addresses

fbuc.cn points to the four IP addresses 104.21.51.70, 172.67.176.241, 2606:4700:3031::ac43:b0f1 and 2606:4700:3036::6815:3346.

skylandsrealestate.com, icmarket.sk, logology.co.uk and two other host names share IP numbers with fbuc.cn.

Name Servers

fbuc.cn has two authoritative name servers — damian.ns.cloudflare.com and norah.ns.cloudflare.com.

fbuc.cn uses the same name servers as several other domains — among them yishoupuer.com, 50423.cn, jybwbx.com and two more.

At least some of fbuc.cn's name servers are shared with other domains, for example jacotech.com, pinup1909.ru, nedrock.com and two more.

These name servers tend to be used in conjunction with the name servers austin.ns.cloudflare.com.

Hostnames that resolve to 6 IP addresses:

damian.ns.cloudflare.com points to 108.162.195.50, 162.159.44.50, 172.64.35.50 and 3 other IP addresses.

norah.ns.cloudflare.com points to 108.162.194.70, 162.159.38.70, 172.64.34.70 and 3 other IP addresses.

fbuc.cn - robtex.com

fbuc.cn

cn

Same first word

Similar names

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

Analysis

IP Addresses

Name Servers

`fbuc.cn`

`cn`