`fs4u.net`

DNSSEC	⚠️ Not signed
A	2606:4700:3031::ac43:da29^{🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3033::6815:1862^{🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.24.98^{Cloudflare104.21.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.218.41^{🇺🇸 Cloudflare172.67.208.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`aiden.ns.cloudflare.com` ⭐
		A	2606:4700:58::adf5:3b37^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`aiden.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c137^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`aiden.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2137^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`aiden.ns.cloudflare.com`
		A	108.162.193.55^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`aiden.ns.cloudflare.com`
		A	172.64.33.55^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`aiden.ns.cloudflare.com`
		A	173.245.59.55^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`aiden.ns.cloudflare.com`
NS	`gabriella.ns.cloudflare.com`
		A	2606:4700:50::a29f:2686^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`gabriella.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c286^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`gabriella.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2286^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`gabriella.ns.cloudflare.com`
		A	108.162.194.134^{🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`gabriella.ns.cloudflare.com`
		A	162.159.38.134^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`gabriella.ns.cloudflare.com`
		A	172.64.34.134^{🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`gabriella.ns.cloudflare.com`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4	104.21.24.98, 172.67.218.41
		IPv6	2606:4700:3031::ac43:da29, 2606:4700:3033::6815:1862
SOA	`aiden.ns.cloudflare.com`dns@cloudflare.com serial=2394672605

`net`

	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=1771291465

Same first word

fs4u.de

fs4u.com

fs4u.ch

fs4u.net

Similar names

sfu4.com

ufs4.com

sf4u.net

sf4u.com

4sfu.com

f4us.com

s4fu.com

uf4s.com

usf4.com

DNS History

15 records (6 active, 9 former)

●NSaiden.ns.cloudflare.com2026-03-20 → 2026-03-22 · 3 obs

○ 2017-07-05 01:41:12
● 2026-03-20 07:41:00
● 2026-03-22 18:44:54

●NSgabriella.ns.cloudflare.com2026-03-20 → 2026-03-22 · 3 obs

○ 2017-07-05 01:41:12
● 2026-03-20 07:41:00
● 2026-03-22 18:44:54

○NSns1.commonmx.com2016-04-06 → 2016-04-06 · 4 obs

○ 2016-01-08 09:58:06
● 2016-04-06 12:10:00
○ 2016-09-22 20:19:38
○ 2026-03-22 18:44:54

○NSns2.commonmx.com2016-04-06 → 2016-04-06 · 4 obs

○ 2016-01-08 09:58:06
● 2016-04-06 12:10:00
○ 2016-09-22 20:19:38
○ 2026-03-22 18:44:54

○NSsk.s7.ans1.ns147.klczy.com2015-07-16 → 2017-07-05 · 7 obs

● 2015-07-16 07:24:08
● 2016-01-08 09:58:06
○ 2016-04-06 12:10:00
● 2016-09-22 20:19:38
● 2017-07-05 01:41:12
○ 2026-03-20 07:41:00
○ 2026-03-22 18:44:54

○NSsk.s7.ans2.ns147.klczy.com2015-07-16 → 2017-07-05 · 7 obs

● 2015-07-16 07:24:08
● 2016-01-08 09:58:06
○ 2016-04-06 12:10:00
● 2016-09-22 20:19:38
● 2017-07-05 01:41:12
○ 2026-03-20 07:41:00
○ 2026-03-22 18:44:54

○MXmail.b-io.co2015-07-16 → 2015-07-16 · 3 obs

● 2015-07-16 07:24:08
○ 2015-11-19 16:55:24
○ 2026-03-22 18:44:54

●A104.21.24.982026-03-20 → 2026-03-22 · 3 obs

○ 2017-07-05 01:41:12
● 2026-03-20 07:41:00
● 2026-03-22 18:44:54

○A141.8.225.2262015-07-16 → 2016-09-22 · 6 obs

● 2015-07-16 07:24:08
● 2016-01-08 09:58:06
○ 2016-04-06 12:10:00
● 2016-09-22 20:19:38
○ 2017-07-05 01:41:12
○ 2026-03-22 18:44:54

○A149.56.9.742016-04-06 → 2016-04-06 · 4 obs

○ 2016-01-08 09:58:06
● 2016-04-06 12:10:00
○ 2016-09-22 20:19:38
○ 2026-03-22 18:44:54

●A172.67.218.412026-03-20 → 2026-03-22 · 3 obs

○ 2017-07-05 01:41:12
● 2026-03-20 07:41:00
● 2026-03-22 18:44:54

○A208.91.196.1522017-07-05 → 2017-07-05 · 4 obs

○ 2016-09-22 20:19:38
● 2017-07-05 01:41:12
○ 2026-03-20 07:41:00
○ 2026-03-22 18:44:54

●A2606:4700:3031::ac43:da292026-03-20 → 2026-03-22 · 3 obs

○ 2017-07-05 01:41:12
● 2026-03-20 07:41:00
● 2026-03-22 18:44:54

●A2606:4700:3033::6815:18622026-03-20 → 2026-03-22 · 3 obs

○ 2017-07-05 01:41:12
● 2026-03-20 07:41:00
● 2026-03-22 18:44:54

○PTRsk.s7.ans1.ns147.klczy.com2017-07-05 → 2017-07-05 · 3 obs

● 2017-07-05 01:41:12
○ 2026-03-20 07:41:00
○ 2026-03-22 18:44:54

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
net	l.gtld-servers.net, c.gtld-servers.net, k.gtld-servers.net, g.gtld-servers.net...	-
fs4u.net	aiden.ns.cloudflare.com, gabriella.ns.cloudflare.com	-

✅ Authoritative Response

Server: 108.162.194.134

NS records: aiden.ns.cloudflare.com, gabriella.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for fs4u.net (unsigned zone)

⏱️ Timing

Total: 353ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.218.41, 104.21.24.98`
AAAA	2	`2606:4700:3033::6815:1862, 2606:4700:3031::ac43:da29`
NS	2	`aiden.ns.cloudflare.com, gabriella.ns.cloudflare.com`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`aiden.ns.cloudflare.com dns.cloudflare.c`

Analysis

IP Addresses

fs4u.net maps to four IP numbers: 2606:4700:3031::ac43:da29, 2606:4700:3033::6815:1862, 104.21.24.98 and 172.67.218.41.

other host names include gestkisogna.pro, hyq3.ink, vanmokum.com, www.kingbet.gr and mail.ecoinch.com; they share IP numbers with fs4u.net.

Name Servers

Two name servers aiden.ns.cloudflare.com and gabriella.ns.cloudflare.com handle the delegation for fs4u.net.

fs4u.net shares the same name server setup as other domains, for instance asymn.com, thebrandsmithco.com, zanove.com, domedemblem.com and gaerwen.com.

fs4u.net at least partially shares name servers with other domains, for instance adriaticbasket.com, aepu.org.uk, kogolf.co.kr, columbialeader.com and sokujitu-cash.com.

These name servers are commonly used with zoe.ns.cloudflare.com and cloe.ns.cloudflare.com.

Six IP addresses per host:

aiden.ns.cloudflare.com points to 2606:4700:58::adf5:3b37, 2803:f800:50::6ca2:c137, 2a06:98c1:50::ac40:2137, 108.162.193.55, 172.64.33.55 and 173.245.59.55; gabriella.ns.cloudflare.com points to 2606:4700:50::a29f:2686, 2803:f800:50::6ca2:c286, 2a06:98c1:50::ac40:2286, 108.162.194.134, 162.159.38.134 and 172.64.34.134

fs4u.net - robtex.com

fs4u.net

net

Same first word

Similar names

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

Analysis

IP Addresses

Name Servers

`fs4u.net`

`net`