`tfou.cn`

DNSSEC	⚠️ Not signed
A	2606:4700:3032::6815:54b2^{🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3032::ac43:c374^{🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.84.178^{Cloudflare104.21.80.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.195.116^{🇺🇸 Cloudflare172.67.192.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`brenna.ns.cloudflare.com` ⭐
		A	2606:4700:50::a29f:26b0^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`brenna.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c2b0^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`brenna.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:22b0^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`brenna.ns.cloudflare.com`
		A	108.162.194.176^{🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`brenna.ns.cloudflare.com`
		A	162.159.38.176^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`brenna.ns.cloudflare.com`
		A	172.64.34.176^{🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`brenna.ns.cloudflare.com`
NS	`ken.ns.cloudflare.com`
		A	2606:4700:58::adf5:3b7f^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ken.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c17f^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`ken.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:217f^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`ken.ns.cloudflare.com`
		A	108.162.193.127^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ken.ns.cloudflare.com`
		A	172.64.33.127^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ken.ns.cloudflare.com`
		A	173.245.59.127^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ken.ns.cloudflare.com`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.84.178, 172.67.195.116
		IPv6 hints	2606:4700:3032::6815:54b2, 2606:4700:3032::ac43:c374
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=254, name=cloudflare-ech.com
SOA	`brenna.ns.cloudflare.com`dns@cloudflare.com serial=2400507297

`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=2034778310

Same first word

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tfou.org

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tfou.tv

tfou.fr

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Similar names

tofu.ru

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ftuo.cn

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uotf.de

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uotf.org

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tfuo.com

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tufo.ru

futo.co.jp

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futo.com

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outf.net

tofu.pl

tofu.org

futo.org

tufo.cz

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tofu.media

touf.fr

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uotf.net

tofu.info

utof.net

uoft.info

tofu.ch

fotu.nl

tofu.vision

tofu.farm

tofu.world

DNS History

16 records (6 active, 10 former)

●NSbrenna.ns.cloudflare.com2026-04-14 → 2026-05-11 · 3 obs

○ 2021-03-25 20:23:50
● 2026-04-14 23:58:52
● 2026-05-11 10:29:04

●NSken.ns.cloudflare.com2026-04-14 → 2026-05-11 · 3 obs

○ 2021-03-25 20:23:50
● 2026-04-14 23:58:52
● 2026-05-11 10:29:04

○NSns1.22.cn2016-02-07 → 2016-02-07 · 3 obs

● 2016-02-07 16:35:42
○ 2021-03-25 20:23:50
○ 2026-05-11 10:29:04

○NSns3.dns.com2021-03-25 → 2021-03-25 · 4 obs

○ 2016-02-07 16:35:42
● 2021-03-25 20:23:50
○ 2026-04-14 23:58:52
○ 2026-05-11 10:29:04

○NSns4.dns.com2021-03-25 → 2021-03-25 · 4 obs

○ 2016-02-07 16:35:42
● 2021-03-25 20:23:50
○ 2026-04-14 23:58:52
○ 2026-05-11 10:29:04

●A104.21.84.1782026-04-14 → 2026-05-11 · 6 obs

○ 2021-03-25 20:23:50
● 2026-04-14 23:58:52
● 2026-04-22 22:35:20
○ 2026-04-23 19:51:04
● 2026-04-28 03:57:02
● 2026-05-11 10:29:04

●A172.67.195.1162026-04-14 → 2026-05-11 · 6 obs

○ 2021-03-25 20:23:50
● 2026-04-14 23:58:52
● 2026-04-22 22:35:20
○ 2026-04-23 19:51:04
● 2026-04-28 03:57:02
● 2026-05-11 10:29:04

○A188.114.96.02026-04-23 → 2026-04-23 · 4 obs

○ 2026-04-22 22:35:20
● 2026-04-23 19:51:04
○ 2026-04-28 03:57:02
○ 2026-05-11 10:29:04

○A188.114.97.02026-04-23 → 2026-04-23 · 4 obs

○ 2026-04-22 22:35:20
● 2026-04-23 19:51:04
○ 2026-04-28 03:57:02
○ 2026-05-11 10:29:04

●A2606:4700:3032::6815:54b22026-04-14 → 2026-05-11 · 6 obs

○ 2021-03-25 20:23:50
● 2026-04-14 23:58:52
● 2026-04-22 22:35:20
○ 2026-04-23 19:51:04
● 2026-04-28 03:57:02
● 2026-05-11 10:29:04

●A2606:4700:3032::ac43:c3742026-04-14 → 2026-05-11 · 6 obs

○ 2021-03-25 20:23:50
● 2026-04-14 23:58:52
● 2026-04-22 22:35:20
○ 2026-04-23 19:51:04
● 2026-04-28 03:57:02
● 2026-05-11 10:29:04

○A2a06:98c1:3120::2026-04-23 → 2026-04-23 · 4 obs

○ 2026-04-22 22:35:20
● 2026-04-23 19:51:04
○ 2026-04-28 03:57:02
○ 2026-05-11 10:29:04

○A2a06:98c1:3121::2026-04-23 → 2026-04-23 · 4 obs

○ 2026-04-22 22:35:20
● 2026-04-23 19:51:04
○ 2026-04-28 03:57:02
○ 2026-05-11 10:29:04

○A43.229.108.1302017-02-14 → 2017-02-14 · 3 obs

● 2017-02-14 13:29:58
○ 2021-03-25 20:23:50
○ 2026-05-11 10:29:04

○A45.116.76.1922021-03-25 → 2021-03-25 · 4 obs

○ 2017-02-14 13:29:58
● 2021-03-25 20:23:50
○ 2026-04-14 23:58:52
○ 2026-05-11 10:29:04

○CNAMEdn.taoyongzhe.com2016-02-07 → 2017-02-14 · 4 obs

● 2016-02-07 16:35:42
● 2017-02-14 13:29:58
○ 2021-03-25 20:23:50
○ 2026-05-11 10:29:04

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
cn	a.dns.cn, b.dns.cn, c.dns.cn, d.dns.cn...	-
tfou.cn	ken.ns.cloudflare.com, brenna.ns.cloudflare.com	-

✅ Authoritative Response

Server:162.159.38.176

NS records: ken.ns.cloudflare.com, brenna.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for tfou.cn (unsigned zone)

⏱️ Timing

Total: 866ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.195.116, 104.21.84.178`
AAAA	2	`2606:4700:3032::ac43:c374, 2606:4700:3032::6815:54b2`
NS	2	`brenna.ns.cloudflare.com, ken.ns.cloudflare.com`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`brenna.ns.cloudflare.com dns.cloudflare.`

Analysis

IP Addresses

tfou.cn points to four IP numbers: 2606:4700:3032::6815:54b2, 2606:4700:3032::ac43:c374, 104.21.84.178 and 172.67.195.116.

Other host names, for instance rotec.com.br, www.piboonprachaban.ac.th, weska.jp, alyjan.com and www.xx22ss.com share IP numbers with tfou.cn.

Name Servers

tfou.cn's delegation is to two name servers brenna.ns.cloudflare.com and ken.ns.cloudflare.com.

tfou.cn shares the same name server configuration as other domains, such as fukang120.cn, caifuxx.cn, b1157.cn, c9730.cn and szjieda.net.

tfou.cn at least partially shares its name servers with other domains, for instance alyuminievyeokna.ru, diana-art.com, aiplucca.it, xn--orellfssli-feb.ch and staffbymaff.com.

these name servers are commonly used together with lisa.ns.cloudflare.com, aaden.ns.cloudflare.com, ns1.colocrossing.com and ns2.colocrossing.com.

Host names with six IP numbers:

brenna.ns.cloudflare.com points to: 2606:4700:50::a29f:26b0, 2803:f800:50::6ca2:c2b0, 2a06:98c1:50::ac40:22b0, 108.162.194.176, 162.159.38.176 and 172.64.34.176.

ken.ns.cloudflare.com points to: 2606:4700:58::adf5:3b7f, 2803:f800:50::6ca2:c17f, 2a06:98c1:50::ac40:217f, 108.162.193.127, 172.64.33.127 and 173.245.59.127.

tfou.cn - robtex.com

tfou.cn

cn

Same first word

Similar names

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

Analysis

IP Addresses

Name Servers

`tfou.cn`

`cn`