`ksf4.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3031::ac43:895f^{🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3033::6815:26bc^{🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.38.188^{Cloudflare104.21.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.137.95^{🇺🇸 Cloudflare172.67.128.0/20 , 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	`yahir.ns.cloudflare.com`
		A	2606:4700:58::a29f:2c22^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`yahir.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c322^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`yahir.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2322^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`yahir.ns.cloudflare.com`
		A	108.162.195.34^{🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`yahir.ns.cloudflare.com`
		A	162.159.44.34^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`yahir.ns.cloudflare.com`
		A	172.64.35.34^{🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`yahir.ns.cloudflare.com`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.38.188, 172.67.137.95
		IPv6 hints	2606:4700:3031::ac43:895f, 2606:4700:3033::6815:26bc
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=123, name=cloudflare-ech.com
SOA	`brenna.ns.cloudflare.com`dns@cloudflare.com serial=2408958381

`com`

	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=1785298092

Same first word

ksf4.com

Similar names

fsk4.com

s4kf.org

k4sf.com

k4sf.blogspot.com

sf4k.com

4skf.com

fks4.com

DNS History

18 records (6 active, 12 former)

●NSbrenna.ns.cloudflare.com2026-07-15 → 2026-07-29 · 3 obs

○ 2017-09-15 20:46:30
● 2026-07-15 20:55:58
● 2026-07-29 04:29:02

○NSns1.bodis.com2017-09-15 → 2017-09-15 · 4 obs

○ 2016-12-19 23:54:16
● 2017-09-15 20:46:30
○ 2026-07-15 20:55:58
○ 2026-07-29 04:29:02

○NSns1.hosting.co.kr2016-12-19 → 2016-12-19 · 3 obs

● 2016-12-19 23:54:16
○ 2017-09-15 20:46:30
○ 2026-07-29 04:29:02

○NSns2.bodis.com2017-09-15 → 2017-09-15 · 4 obs

○ 2016-12-19 23:54:16
● 2017-09-15 20:46:30
○ 2026-07-15 20:55:58
○ 2026-07-29 04:29:02

○NSns2.hosting.co.kr2016-12-19 → 2016-12-19 · 3 obs

● 2016-12-19 23:54:16
○ 2017-09-15 20:46:30
○ 2026-07-29 04:29:02

●NSyahir.ns.cloudflare.com2026-07-15 → 2026-07-29 · 3 obs

○ 2017-09-15 20:46:30
● 2026-07-15 20:55:58
● 2026-07-29 04:29:02

○MXmx76.m2bp.com2017-09-15 → 2017-09-15 · 3 obs

● 2017-09-15 20:46:30
○ 2026-07-15 20:55:58
○ 2026-07-29 04:29:02

○MXmx76.mb1p.com2017-09-15 → 2017-09-15 · 3 obs

● 2017-09-15 20:46:30
○ 2026-07-15 20:55:58
○ 2026-07-29 04:29:02

●A104.21.38.1882026-07-15 → 2026-07-29 · 4 obs

○ 2017-09-15 20:46:30
● 2026-07-15 20:55:58
○ 2026-07-20 16:39:00
● 2026-07-29 04:29:02

●A172.67.137.952026-07-15 → 2026-07-29 · 4 obs

○ 2017-09-15 20:46:30
● 2026-07-15 20:55:58
○ 2026-07-20 16:39:00
● 2026-07-29 04:29:02

○A188.114.96.02026-07-20 → 2026-07-20 · 3 obs

○ 2026-07-15 20:55:58
● 2026-07-20 16:39:00
○ 2026-07-29 04:29:02

○A188.114.97.02026-07-20 → 2026-07-20 · 3 obs

○ 2026-07-15 20:55:58
● 2026-07-20 16:39:00
○ 2026-07-29 04:29:02

○A199.59.242.1502017-09-15 → 2017-09-15 · 4 obs

○ 2016-12-19 23:54:16
● 2017-09-15 20:46:30
○ 2026-07-15 20:55:58
○ 2026-07-29 04:29:02

○A211.234.63.2322016-12-19 → 2016-12-19 · 3 obs

● 2016-12-19 23:54:16
○ 2017-09-15 20:46:30
○ 2026-07-29 04:29:02

●A2606:4700:3031::ac43:895f2026-07-15 → 2026-07-29 · 4 obs

○ 2017-09-15 20:46:30
● 2026-07-15 20:55:58
○ 2026-07-20 16:39:00
● 2026-07-29 04:29:02

●A2606:4700:3033::6815:26bc2026-07-15 → 2026-07-29 · 4 obs

○ 2017-09-15 20:46:30
● 2026-07-15 20:55:58
○ 2026-07-20 16:39:00
● 2026-07-29 04:29:02

○A2a06:98c1:3120::2026-07-20 → 2026-07-20 · 3 obs

○ 2026-07-15 20:55:58
● 2026-07-20 16:39:00
○ 2026-07-29 04:29:02

○A2a06:98c1:3121::2026-07-20 → 2026-07-20 · 3 obs

○ 2026-07-15 20:55:58
● 2026-07-20 16:39:00
○ 2026-07-29 04:29:02

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	j.gtld-servers.net, a.gtld-servers.net, g.gtld-servers.net, f.gtld-servers.net...	-
ksf4.com	brenna.ns.cloudflare.com, yahir.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.195.34

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for ksf4.com (unsigned zone)

⏱️ Timing

Total: 166ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.137.95, 104.21.38.188`
AAAA	2	`2606:4700:3033::6815:26bc, 2606:4700:3031::ac43:895f`
NS	2	`brenna.ns.cloudflare.com, yahir.ns.cloudflare.com`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`brenna.ns.cloudflare.com dns.cloudflare.`

📌 Glue Records Collected

Total: 12

Out-of-bailiwick: 12 (brenna.ns.cloudflare.com, brenna.ns.cloudflare.com, brenna.ns.cloudflare.com...)

Analysis

IP Addresses

ksf4.com resolves to four IP addresses: 104.21.38.188, 172.67.137.95, 2606:4700:3031::ac43:895f and 2606:4700:3033::6815:26bc.

xoles.com, offce-wps.com, ejbcy.com and two other host names share IP numbers with ksf4.com.

Name Servers

ksf4.com has two authoritative name servers — brenna.ns.cloudflare.com and yahir.ns.cloudflare.com.

ksf4.com uses the same name servers as several other domains — among them henanbaoheng.com, liba9.com, yisongting.com and two more.

ksf4.com shares at least some of its name servers with other domains, including teleforvaltning.no, nekopoi.ws, 885957.com and two others.

These name servers are frequently paired with the name servers aaden.ns.cloudflare.com, alexia.ns.cloudflare.com and eve.ns.cloudflare.com.

Hostnames that resolve to 6 IP addresses:

brenna.ns.cloudflare.com points to 108.162.194.176, 162.159.38.176, 172.64.34.176 and 3 other IP addresses.

yahir.ns.cloudflare.com points to 108.162.195.34, 162.159.44.34, 172.64.35.34 and 3 other IP addresses.

ksf4.com - robtex.com

ksf4.com

com

Same first word

Similar names

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

📌 Glue Records Collected

Analysis

IP Addresses

Name Servers

`ksf4.com`

`com`