cfssk.com - dns.ninja

cfssk.com

DNSSEC⚠️ Not signed
A2606:4700:3033::6815:4531🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3033::ac43:ccb0🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.69.49Cloudflare104.21.64.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.204.176🇺🇸 Cloudflare172.67.192.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSetta.ns.cloudflare.com ⭐
A2606:4700:50::adf5:3a9c🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRetta.ns.cloudflare.com
A2803:f800:50::6ca2:c09c🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRetta.ns.cloudflare.com
A2a06:98c1:50::ac40:209c🇺🇸 Cloudflare2a06:98c1:50::/45
PTRetta.ns.cloudflare.com
A108.162.192.156🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRetta.ns.cloudflare.com
A172.64.32.156🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRetta.ns.cloudflare.com
A173.245.58.156🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRetta.ns.cloudflare.com
NSkipp.ns.cloudflare.com
A2606:4700:58::a29f:2cf0🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRkipp.ns.cloudflare.com
A2803:f800:50::6ca2:c3f0🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRkipp.ns.cloudflare.com
A2a06:98c1:50::ac40:23f0🇺🇸 Cloudflare2a06:98c1:50::/45
PTRkipp.ns.cloudflare.com
A108.162.195.240🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRkipp.ns.cloudflare.com
A162.159.44.240Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRkipp.ns.cloudflare.com
A172.64.35.240🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRkipp.ns.cloudflare.com
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.69.49, 172.67.204.176
IPv6 hints2606:4700:3033::6815:4531, 2606:4700:3033::ac43:ccb0
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=241, name=cloudflare-ech.com
SOAetta.ns.cloudflare.comdns@cloudflare.com serial=2411723661

com

DNSSEC🔒 Signed (DS record present)
NSa.gtld-servers.net ⭐
NSb.gtld-servers.net
NSc.gtld-servers.net
NSd.gtld-servers.net
NSe.gtld-servers.net
NSf.gtld-servers.net
NSg.gtld-servers.net
NSh.gtld-servers.net
NSi.gtld-servers.net
NSj.gtld-servers.net
NSk.gtld-servers.net
NSl.gtld-servers.net
NSm.gtld-servers.net
SOAa.gtld-servers.netnstld@verisign-grs.com serial=1786703709

Same first word

cfssk.com

Similar names

sckfs.com
sfskc.com
fssck.com
ssckf.cn
fkscs.com
kcfss.ch
kcsfs.com
scskf.com
ksfsc.com
scfks.com

DNS History

13 records (6 active, 7 former)

20162017201820192020202120222023202420252026NSetta.ns.cloudflare.comkipp.ns.cloudflare.comdns10.hichina.comdns9.hichina.comexpirens3.hichina.comexpirens4.hichina.comA104.21.69.49172.67.204.1762606:4700:3033::6815:45312606:4700:3033::ac43:ccb02606:4700:3031::6815:453147.52.66.2147.89.58.141
○NSdns10.hichina.com2015-11-19 → 2016-04-23 · 4 obs
● 2015-11-19 00:59:54
● 2016-04-23 04:32:04
○ 2016-12-04 19:50:10
○ 2026-08-14 10:44:18
○NSdns9.hichina.com2015-11-19 → 2016-04-23 · 4 obs
● 2015-11-19 00:59:54
● 2016-04-23 04:32:04
○ 2016-12-04 19:50:10
○ 2026-08-14 10:44:18
●NSetta.ns.cloudflare.com2026-03-12 → 2026-08-14 · 3 obs
○ 2016-12-04 19:50:10
● 2026-03-12 01:08:00
● 2026-08-14 10:44:18
○NSexpirens3.hichina.com2016-12-04 → 2016-12-04 · 4 obs
○ 2016-04-23 04:32:04
● 2016-12-04 19:50:10
○ 2026-03-12 01:08:00
○ 2026-08-14 10:44:18
○NSexpirens4.hichina.com2016-12-04 → 2016-12-04 · 4 obs
○ 2016-04-23 04:32:04
● 2016-12-04 19:50:10
○ 2026-03-12 01:08:00
○ 2026-08-14 10:44:18
●NSkipp.ns.cloudflare.com2026-03-12 → 2026-08-14 · 3 obs
○ 2016-12-04 19:50:10
● 2026-03-12 01:08:00
● 2026-08-14 10:44:18
●A104.21.69.492026-03-12 → 2026-08-14 · 3 obs
○ 2017-08-31 04:20:08
● 2026-03-12 01:08:00
● 2026-08-14 10:44:18
●A172.67.204.1762026-03-12 → 2026-08-14 · 3 obs
○ 2017-08-31 04:20:08
● 2026-03-12 01:08:00
● 2026-08-14 10:44:18
○A2606:4700:3031::6815:45312026-03-12 → 2026-06-14 · 5 obs
○ 2017-08-31 04:20:08
● 2026-03-12 01:08:00
● 2026-06-14 23:26:42
○ 2026-07-05 04:38:26
○ 2026-08-14 10:44:18
●A2606:4700:3033::6815:45312026-07-05 → 2026-08-14 · 3 obs
○ 2026-06-14 23:26:42
● 2026-07-05 04:38:26
● 2026-08-14 10:44:18
●A2606:4700:3033::ac43:ccb02026-03-12 → 2026-08-14 · 3 obs
○ 2017-08-31 04:20:08
● 2026-03-12 01:08:00
● 2026-08-14 10:44:18
○A47.52.66.212017-08-31 → 2017-08-31 · 4 obs
○ 2016-12-04 19:50:10
● 2017-08-31 04:20:08
○ 2026-03-12 01:08:00
○ 2026-08-14 10:44:18
○A47.89.58.1412016-12-04 → 2016-12-04 · 3 obs
● 2016-12-04 19:50:10
○ 2017-08-31 04:20:08
○ 2026-08-14 10:44:18

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
comf.gtld-servers.net, b.gtld-servers.net, g.gtld-servers.net, k.gtld-servers.net...-
cfssk.cometta.ns.cloudflare.com, kipp.ns.cloudflare.com12 records

✅ Authoritative Response

Server:108.162.192.156

NS records: etta.ns.cloudflare.com, kipp.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for cfssk.com (unsigned zone)

⏱️ Timing

Total: 177ms | Queries: -

📄 Records

TypeCountSample Data
A2172.67.204.176, 104.21.69.49
AAAA22606:4700:3033::6815:4531, 2606:4700:3033::ac43:ccb0
NS2etta.ns.cloudflare.com, kipp.ns.cloudflare.com
HTTPS1{"priority":1,"target":".","alpn":["h3",
SOA1etta.ns.cloudflare.com dns.cloudflare.co

📌 Glue Records Collected

Total: 12

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

Analysis

IP Addresses

cfssk.com has four IP addresses: 104.21.69.49, 172.67.204.176, 2606:4700:3033::6815:4531 and 2606:4700:3033::ac43:ccb0.

Additional host names — tianlier.com, dc-76d72eb3586f.noobfactorywatches.shop, measurementlabs.ai and two others — share IP numbers with cfssk.com.

Name Servers

DNS delegation for cfssk.com points to two name servers: etta.ns.cloudflare.com and kipp.ns.cloudflare.com.

cfssk.com shares its name server setup with other domains, including 496a.com, wishcs.com, metal-wire.net and two others.

cfssk.com shares at least some of its name servers with other domains, including miresoft.net, meetfine.net, 7755.com and two others.

These name servers are frequently seen alongside the name servers sydney.ns.cloudflare.com, paris.ns.cloudflare.com, elsa.ns.cloudflare.com and renan.ns.cloudflare.com.

Host names with 6 IP numbers:

etta.ns.cloudflare.com has IP addresses 108.162.192.156, 172.64.32.156 and 173.245.58.156, plus 3 other.

kipp.ns.cloudflare.com has IP addresses 108.162.195.240, 162.159.44.240 and 172.64.35.240, plus 3 other.