ct-sys.com - robtex.com

ct-sys.com

DNSSEC⚠️ Not signed
A2606:4700:3030::ac43:bd66🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3031::6815:414f🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.65.79Cloudflare104.21.64.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.189.102🇺🇸 Cloudflare172.67.176.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSdell.ns.cloudflare.com ⭐
A2606:4700:50::adf5:3a5e🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRdell.ns.cloudflare.com
A2803:f800:50::6ca2:c05e🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRdell.ns.cloudflare.com
A2a06:98c1:50::ac40:205e🇺🇸 Cloudflare2a06:98c1:50::/45
PTRdell.ns.cloudflare.com
A108.162.192.94🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRdell.ns.cloudflare.com
A172.64.32.94🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRdell.ns.cloudflare.com
A173.245.58.94🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRdell.ns.cloudflare.com
NSnoel.ns.cloudflare.com
A2606:4700:58::adf5:3bd8🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRnoel.ns.cloudflare.com
A2803:f800:50::6ca2:c1d8🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRnoel.ns.cloudflare.com
A2a06:98c1:50::ac40:21d8🇺🇸 Cloudflare2a06:98c1:50::/45
PTRnoel.ns.cloudflare.com
A108.162.193.216🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRnoel.ns.cloudflare.com
A172.64.33.216🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRnoel.ns.cloudflare.com
A173.245.59.216🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRnoel.ns.cloudflare.com
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.65.79, 172.67.189.102
IPv6 hints2606:4700:3030::ac43:bd66, 2606:4700:3031::6815:414f
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=147, name=cloudflare-ech.com
SOAdell.ns.cloudflare.comdns@cloudflare.com serial=2410479995

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=1785080362

Previously MX for

www.ct-sys.com
ct-sys.com

Subdomains

www.ct-sys.com

Same first word

ct-sys.net
ct-sys.com
ct-sys.eu

Similar names

tsc-sy.com
sys-tc.com
sys-ct.com
tsc-sy.net
sct-ys.com
c-syst.com

DNS History

12 records (6 active, 6 former)

20162017201820192020202120222023202420252026NSdell.ns.cloudflare.comnoel.ns.cloudflare.commaster.dns.ne.jpns1.dns.ne.jpns2.dns.ne.jpMXct-sys.comA104.21.65.79172.67.189.1022606:4700:3030::ac43:bd662606:4700:3031::6815:414f2606:4700:3037::6815:414f59.106.27.196
●NSdell.ns.cloudflare.com2026-05-11 → 2026-07-26 · 3 obs
○ 2016-12-26 13:52:28
● 2026-05-11 15:26:08
● 2026-07-26 15:51:58
○NSmaster.dns.ne.jp2015-08-15 → 2016-12-26 · 4 obs
● 2015-08-15 14:08:00
● 2016-12-26 13:52:28
○ 2026-05-11 15:26:08
○ 2026-07-26 15:51:58
●NSnoel.ns.cloudflare.com2026-05-11 → 2026-07-26 · 3 obs
○ 2016-12-26 13:52:28
● 2026-05-11 15:26:08
● 2026-07-26 15:51:58
○NSns1.dns.ne.jp2015-08-15 → 2016-12-26 · 4 obs
● 2015-08-15 14:08:00
● 2016-12-26 13:52:28
○ 2026-05-11 15:26:08
○ 2026-07-26 15:51:58
○NSns2.dns.ne.jp2015-08-15 → 2016-12-26 · 4 obs
● 2015-08-15 14:08:00
● 2016-12-26 13:52:28
○ 2026-05-11 15:26:08
○ 2026-07-26 15:51:58
○MXct-sys.com2015-08-15 → 2016-12-26 · 4 obs
● 2015-08-15 14:08:00
● 2016-12-26 13:52:28
○ 2026-05-11 15:26:08
○ 2026-07-26 15:51:58
●A104.21.65.792026-05-11 → 2026-07-26 · 3 obs
○ 2016-12-26 13:52:28
● 2026-05-11 15:26:08
● 2026-07-26 15:51:58
●A172.67.189.1022026-05-11 → 2026-07-26 · 3 obs
○ 2016-12-26 13:52:28
● 2026-05-11 15:26:08
● 2026-07-26 15:51:58
●A2606:4700:3030::ac43:bd662026-05-11 → 2026-07-26 · 3 obs
○ 2016-12-26 13:52:28
● 2026-05-11 15:26:08
● 2026-07-26 15:51:58
●A2606:4700:3031::6815:414f2026-06-30 → 2026-07-26 · 3 obs
○ 2026-06-13 12:51:04
● 2026-06-30 20:50:08
● 2026-07-26 15:51:58
○A2606:4700:3037::6815:414f2026-05-11 → 2026-06-13 · 5 obs
○ 2016-12-26 13:52:28
● 2026-05-11 15:26:08
● 2026-06-13 12:51:04
○ 2026-06-30 20:50:08
○ 2026-07-26 15:51:58
○A59.106.27.1962015-08-15 → 2016-12-26 · 4 obs
● 2015-08-15 14:08:00
● 2016-12-26 13:52:28
○ 2026-05-11 15:26:08
○ 2026-07-26 15:51:58

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
comb.gtld-servers.net, e.gtld-servers.net, k.gtld-servers.net, g.gtld-servers.net...-
ct-sys.comdell.ns.cloudflare.com, noel.ns.cloudflare.com12 records

✅ Authoritative Response

Server:108.162.192.94

NS records: dell.ns.cloudflare.com, noel.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for ct-sys.com (unsigned zone)

⏱️ Timing

Total: 397ms | Queries: -

📄 Records

TypeCountSample Data
A2172.67.189.102, 104.21.65.79
AAAA22606:4700:3030::ac43:bd66, 2606:4700:3031::6815:414f
NS2dell.ns.cloudflare.com, noel.ns.cloudflare.com
HTTPS1{"priority":1,"target":".","alpn":["h3",
SOA1dell.ns.cloudflare.com dns.cloudflare.co

📌 Glue Records Collected

Total: 12

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

Analysis

Hierarchy

ct-sys.com is the parent zone for www.ct-sys.com.

IP Addresses

ct-sys.com has four IP addresses: 104.21.65.79, 172.67.189.102, 2606:4700:3030::ac43:bd66 and 2606:4700:3031::6815:414f.

kubota-shika.com, javmup.cc, www.dutchroadrunners.nl plus two other host names have IP numbers in common with ct-sys.com.

Name Servers

DNS delegation for ct-sys.com points to two name servers: dell.ns.cloudflare.com and noel.ns.cloudflare.com.

The name server configuration of ct-sys.com is shared with other domains, for instance fishopark.com, worldsmarathons.com, shhyyk.com and two others.

ct-sys.com partially shares its NS delegation with several other domains, including politicsincommand.info, orangemoti.rest, beefsnout.com and two others.

These name servers regularly co-occur with the name servers dane.ns.cloudflare.com, peyton.ns.cloudflare.com and ingrid.ns.cloudflare.com.

Hosts with 6 IP addresses each:

dell.ns.cloudflare.com has IP addresses 108.162.192.94, 172.64.32.94 and 173.245.58.94, plus 3 other.

noel.ns.cloudflare.com has IP addresses 108.162.193.216, 172.64.33.216 and 173.245.59.216, plus 3 other.