`ctsei.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3032::ac43:d096^{🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3035::6815:3d5f^{🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.61.95^{Cloudflare104.21.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.208.150^{🇺🇸 Cloudflare172.67.208.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`leah.ns.cloudflare.com` ⭐
		A	2606:4700:50::adf5:3a81^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`leah.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c081^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`leah.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2081^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`leah.ns.cloudflare.com`
		A	108.162.192.129^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`leah.ns.cloudflare.com`
		A	172.64.32.129^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`leah.ns.cloudflare.com`
		A	173.245.58.129^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`leah.ns.cloudflare.com`
NS	`mike.ns.cloudflare.com`
		A	2606:4700:58::a29f:2c3f^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`mike.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c33f^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`mike.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:233f^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`mike.ns.cloudflare.com`
		A	108.162.195.63^{🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`mike.ns.cloudflare.com`
		A	162.159.44.63^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`mike.ns.cloudflare.com`
		A	172.64.35.63^{🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`mike.ns.cloudflare.com`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.61.95, 172.67.208.150
		IPv6 hints	2606:4700:3032::ac43:d096, 2606:4700:3035::6815:3d5f
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=53, name=cloudflare-ech.com
SOA	`leah.ns.cloudflare.com`dns@cloudflare.com serial=2400131097

`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=1776001472

Subdomains

www.ctsei.com

Same first word

ctsei.com

Similar names

csiet.org

ciste.cn

csite.jp

escit.com.au

cetsi.com

tseci.cn

iestc.org

sitec.cl

etics.us

cseit.net

ecsit.eu

secti.es.gov.br

setic.eu

setic.com.ar

itsec.md

itsec.lt

itsec.gov.cn

etics.com.cn

sitec.ru

itsec.media

sceti.com

icest.mx

cites.org.cn

etics.cloud

cetis.nl

itsce.net

itsec.com.cy

isetc.com

cseit.de

istec.com.au

secit.ch

ectis.ru

cites.ca

istec.net.ua

scite.com.ar

itsec.zone

itecs.de

icest.org

tecis.tel

cites.info.pl

iscte.pt

ecsti.com

ciset.net

sitec.com.ar

cetis.se

itsec.com

etics.in

secit.se

itecs.ru

cetis.co.uk

csite.eu

cites.tv

cetis.cloud

itecs.co.jp

cetis.hr

iscte.org

cetis.de

cseti.ru

secti.fr

cetsi.eu

itsec.io

cseti.de

cseit.com

tseci.com

istec.nl

esitc.cn

itsec.dk

sitec.net

itsec.ca

secit.eu

tisec.ca

cstei.com

csite.com.mx

tiecs.ie

etisc.com

tecis.de

itsec.cl

ciste.net

sitec.no

sitec.com

cetis.ch

itesc.org.br

escit.mobi

itsec.cash

setic.fr

stcie.com

cites.co.uk

istec.com.uy

tecis.in

sitec.com.ua

cites.org

itsec.academy

sicet.com

siect.fr

itsec.net

ceits.co.uk

secit.de

ecsit.ir

sicte.com

scite.org

DNS History

18 records (6 active, 12 former)

○NSfreedns1.registrar-servers.com2015-12-15 → 2016-03-15 · 4 obs

● 2015-12-15 19:15:02
● 2016-03-15 00:49:16
○ 2017-04-04 20:58:32
○ 2026-04-12 13:48:54

○NSfreedns2.registrar-servers.com2015-12-15 → 2016-03-15 · 4 obs

● 2015-12-15 19:15:02
● 2016-03-15 00:49:16
○ 2017-04-04 20:58:32
○ 2026-04-12 13:48:54

○NSfreedns3.registrar-servers.com2015-12-15 → 2016-03-15 · 4 obs

● 2015-12-15 19:15:02
● 2016-03-15 00:49:16
○ 2017-04-04 20:58:32
○ 2026-04-12 13:48:54

○NSfreedns4.registrar-servers.com2015-12-15 → 2016-03-15 · 4 obs

● 2015-12-15 19:15:02
● 2016-03-15 00:49:16
○ 2017-04-04 20:58:32
○ 2026-04-12 13:48:54

○NSfreedns5.registrar-servers.com2015-12-15 → 2016-03-15 · 4 obs

● 2015-12-15 19:15:02
● 2016-03-15 00:49:16
○ 2017-04-04 20:58:32
○ 2026-04-12 13:48:54

●NSleah.ns.cloudflare.com2026-03-29 → 2026-04-12 · 3 obs

○ 2020-04-01 08:57:44
● 2026-03-29 07:12:00
● 2026-04-12 13:48:54

●NSmike.ns.cloudflare.com2026-03-29 → 2026-04-12 · 3 obs

○ 2020-04-01 08:57:44
● 2026-03-29 07:12:00
● 2026-04-12 13:48:54

○NSns1.bdydns.cn2017-04-04 → 2020-04-01 · 5 obs

○ 2016-03-15 00:49:16
● 2017-04-04 20:58:32
● 2020-04-01 08:57:44
○ 2026-03-29 07:12:00
○ 2026-04-12 13:48:54

○NSns2.bdydns.cn2017-04-04 → 2020-04-01 · 5 obs

○ 2016-03-15 00:49:16
● 2017-04-04 20:58:32
● 2020-04-01 08:57:44
○ 2026-03-29 07:12:00
○ 2026-04-12 13:48:54

○MXmail.skrimple.com2015-08-07 → 2016-08-09 · 6 obs

● 2015-08-07 23:11:56
○ 2015-12-15 19:15:02
○ 2016-03-15 00:49:16
● 2016-08-09 04:21:04
○ 2017-04-04 20:58:32
○ 2026-04-12 13:48:54

○MXmx.ym.163.com2017-04-04 → 2020-04-01 · 5 obs

○ 2016-08-09 04:21:04
● 2017-04-04 20:58:32
● 2020-04-01 08:57:44
○ 2026-03-29 07:12:00
○ 2026-04-12 13:48:54

●A104.21.61.952026-03-29 → 2026-04-12 · 3 obs

○ 2017-04-04 20:58:32
● 2026-03-29 07:12:00
● 2026-04-12 13:48:54

●A172.67.208.1502026-03-29 → 2026-04-12 · 3 obs

○ 2017-04-04 20:58:32
● 2026-03-29 07:12:00
● 2026-04-12 13:48:54

●A2606:4700:3032::ac43:d0962026-03-29 → 2026-04-12 · 3 obs

○ 2017-04-04 20:58:32
● 2026-03-29 07:12:00
● 2026-04-12 13:48:54

●A2606:4700:3035::6815:3d5f2026-03-29 → 2026-04-12 · 3 obs

○ 2017-04-04 20:58:32
● 2026-03-29 07:12:00
● 2026-04-12 13:48:54

○A63.141.244.662015-12-15 → 2016-03-15 · 5 obs

○ 2015-08-07 23:11:56
● 2015-12-15 19:15:02
● 2016-03-15 00:49:16
○ 2016-08-09 04:21:04
○ 2026-04-12 13:48:54

○A65.19.157.2312015-08-07 → 2015-08-07 · 3 obs

● 2015-08-07 23:11:56
○ 2015-12-15 19:15:02
○ 2026-04-12 13:48:54

○A69.46.84.502016-08-09 → 2016-08-09 · 4 obs

○ 2016-03-15 00:49:16
● 2016-08-09 04:21:04
○ 2017-04-04 20:58:32
○ 2026-04-12 13:48:54

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
ctsei.com	leah.ns.cloudflare.com, mike.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.192.129

NS records: leah.ns.cloudflare.com, mike.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for ctsei.com (unsigned zone)

⏱️ Timing

Total: 143ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.61.95, 172.67.208.150`
AAAA	2	`2606:4700:3035::6815:3d5f, 2606:4700:3032::ac43:d096`
NS	2	`leah.ns.cloudflare.com, mike.ns.cloudflare.com`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`leah.ns.cloudflare.com dns.cloudflare.co`

📌 Glue Records Collected

Total: 12

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

Analysis

Hierarchy

The parent of www.ctsei.com is ctsei.com.

IP Addresses

ctsei.com maps to four IP numbers: 2606:4700:3032::ac43:d096, 2606:4700:3035::6815:3d5f, 104.21.61.95 and 172.67.208.150.

other host names include rewind.lol, animesongs.org, 79qbet.net, lumon.am and www.thedanamariner.com; they share IP numbers with ctsei.com.

Name Servers

Two name servers leah.ns.cloudflare.com and mike.ns.cloudflare.com handle the delegation for ctsei.com.

ctsei.com shares the same name server setup as other domains, for instance tgxsw.com, teenfreestuff.com, 7904.com, 21zw.com and gzfengwei.com.

ctsei.com at least partially shares name servers with other domains, for instance oraclecode.com, gstarikov.com, frogrecruitment.co.nz, astryxis.sbs and traceyourvehicle.com.

These name servers are commonly used alongside treasure.ns.cloudflare.com, laura.ns.cloudflare.com and mark.ns.cloudflare.com.

Six IP addresses per host:

leah.ns.cloudflare.com points to 2606:4700:50::adf5:3a81, 2803:f800:50::6ca2:c081, 2a06:98c1:50::ac40:2081, 108.162.192.129, 172.64.32.129 and 173.245.58.129; mike.ns.cloudflare.com points to 2606:4700:58::a29f:2c3f, 2803:f800:50::6ca2:c33f, 2a06:98c1:50::ac40:233f, 108.162.195.63, 162.159.44.63 and 172.64.35.63

ctsei.com - robtex.com

ctsei.com

com

Subdomains

Same first word

Similar names

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

📌 Glue Records Collected

Analysis

Hierarchy

IP Addresses

Name Servers

`ctsei.com`

`com`