sk3721.com - robtex.com

sk3721.com

DNSSEC⚠️ Not signed
A2606:4700:3037::6815:5ca5🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3037::ac43:c40b🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.92.165Cloudflare104.21.80.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.196.11🇺🇸 Cloudflare172.67.192.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSjill.ns.cloudflare.com ⭐
A2606:4700:50::adf5:3a7a🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRjill.ns.cloudflare.com
A2803:f800:50::6ca2:c07a🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRjill.ns.cloudflare.com
A2a06:98c1:50::ac40:207a🇺🇸 Cloudflare2a06:98c1:50::/45
PTRjill.ns.cloudflare.com
A108.162.192.122🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRjill.ns.cloudflare.com
A172.64.32.122🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRjill.ns.cloudflare.com
A173.245.58.122🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRjill.ns.cloudflare.com
NSroman.ns.cloudflare.com
A2606:4700:58::a29f:2c67🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRroman.ns.cloudflare.com
A2803:f800:50::6ca2:c367🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRroman.ns.cloudflare.com
A2a06:98c1:50::ac40:2367🇺🇸 Cloudflare2a06:98c1:50::/45
PTRroman.ns.cloudflare.com
A108.162.195.103🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRroman.ns.cloudflare.com
A162.159.44.103Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRroman.ns.cloudflare.com
A172.64.35.103🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRroman.ns.cloudflare.com
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.92.165, 172.67.196.11
IPv6 hints2606:4700:3037::6815:5ca5, 2606:4700:3037::ac43:c40b
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=100, name=cloudflare-ech.com
SOAjill.ns.cloudflare.comdns@cloudflare.com serial=2401958435

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=1777012751
⚠️ On DNS blocklist: tif

Same first word

sk3721.com

Similar names

ks3721.cn
ks3721.com

DNS History

10 records (6 active, 4 former)

NSjill.ns.cloudflare.comroman.ns.cloudflare.comA104.21.92.165172.67.196.112606:4700:3037::6815:5ca52606:4700:3037::ac43:c40b188.114.96.0188.114.97.02a06:98c1:3120::2a06:98c1:3121::
●NSjill.ns.cloudflare.com2026-04-18 → 2026-04-24 · 2 obs
● 2026-04-18 19:06:10
● 2026-04-24 06:53:58
●NSroman.ns.cloudflare.com2026-04-18 → 2026-04-24 · 2 obs
● 2026-04-18 19:06:10
● 2026-04-24 06:53:58
●A104.21.92.1652026-04-18 → 2026-04-24 · 2 obs
● 2026-04-18 19:06:10
● 2026-04-24 06:53:58
●A172.67.196.112026-04-18 → 2026-04-24 · 2 obs
● 2026-04-18 19:06:10
● 2026-04-24 06:53:58
○A188.114.96.02026-04-18 → 2026-04-24 · 2 obs
○ 2026-04-18 19:06:10
○ 2026-04-24 06:53:58
○A188.114.97.02026-04-18 → 2026-04-24 · 2 obs
○ 2026-04-18 19:06:10
○ 2026-04-24 06:53:58
●A2606:4700:3037::6815:5ca52026-04-18 → 2026-04-24 · 2 obs
● 2026-04-18 19:06:10
● 2026-04-24 06:53:58
●A2606:4700:3037::ac43:c40b2026-04-18 → 2026-04-24 · 2 obs
● 2026-04-18 19:06:10
● 2026-04-24 06:53:58
○A2a06:98c1:3120::2026-04-18 → 2026-04-24 · 2 obs
○ 2026-04-18 19:06:10
○ 2026-04-24 06:53:58
○A2a06:98c1:3121::2026-04-18 → 2026-04-24 · 2 obs
○ 2026-04-18 19:06:10
○ 2026-04-24 06:53:58

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
comj.gtld-servers.net, d.gtld-servers.net, a.gtld-servers.net, l.gtld-servers.net...-
sk3721.comjill.ns.cloudflare.com, roman.ns.cloudflare.com12 records

✅ Authoritative Response

Server:108.162.195.103

NS records: jill.ns.cloudflare.com, roman.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for sk3721.com (unsigned zone)

⏱️ Timing

Total: 142ms | Queries: -

📄 Records

TypeCountSample Data
A2172.67.196.11, 104.21.92.165
AAAA22606:4700:3037::ac43:c40b, 2606:4700:3037::6815:5ca5
NS2jill.ns.cloudflare.com, roman.ns.cloudflare.com
HTTPS1{"priority":1,"target":".","alpn":["h3",
SOA1jill.ns.cloudflare.com dns.cloudflare.co

📌 Glue Records Collected

Total: 12

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

Analysis

IP Addresses

Four IP numbers are pointed to by sk3721.com: 2606:4700:3037::6815:5ca5, 2606:4700:3037::ac43:c40b, 104.21.92.165 and 172.67.196.11.

other host names including worksocial.works, www.hkitec.net, cyjpk.com, irshadgul.com and paydayloansintheusa.com share IP numbers with sk3721.com.

Name Servers

sk3721.com is delegated to two name servers jill.ns.cloudflare.com and roman.ns.cloudflare.com.

sk3721.com shares the same name server setup as other domains, for instance saibo5.com, 918rbb.com, c551003.cc, 86ylhm.com and 030168.vip.

sk3721.com at least partially shares name servers with other domains, for instance stat-plus.com, smilegram.com, sbo-top.com.se, spark-hub.net and alltransua.com.

These name servers are commonly used alongside dayana.ns.cloudflare.com and molly.ns.cloudflare.com.

Host names with six IP numbers:

Host name jill.ns.cloudflare.com points to: 2606:4700:50::adf5:3a7a, 2803:f800:50::6ca2:c07a, 2a06:98c1:50::ac40:207a, 108.162.192.122, 172.64.32.122 and 173.245.58.122.

Host name roman.ns.cloudflare.com points to: 2606:4700:58::a29f:2c67, 2803:f800:50::6ca2:c367, 2a06:98c1:50::ac40:2367, 108.162.195.103, 162.159.44.103 and 172.64.35.103.