`crctek.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3031::ac43:d86b^{🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3036::6815:2da0^{🇺🇸 Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.45.160^{Cloudflare104.21.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.216.107^{🇺🇸 Cloudflare172.67.208.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`hans.ns.cloudflare.com` ⭐
		A	2606:4700:58::adf5:3baf^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`hans.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c1af^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`hans.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:21af^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`hans.ns.cloudflare.com`
		A	108.162.193.175^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`hans.ns.cloudflare.com`
		A	172.64.33.175^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`hans.ns.cloudflare.com`
		A	173.245.59.175^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`hans.ns.cloudflare.com`
NS	`venus.ns.cloudflare.com`
		A	2606:4700:50::adf5:3aeb^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`venus.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c0eb^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`venus.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:20eb^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`venus.ns.cloudflare.com`
		A	108.162.192.235^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`venus.ns.cloudflare.com`
		A	172.64.32.235^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`venus.ns.cloudflare.com`
		A	173.245.58.235^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`venus.ns.cloudflare.com`
MX	`crctek-com.mail.protection.outlook.com` ⭐
		A	2a01:111:f403:c902::16^{🇺🇸 Microsoft2a01:111:f000::/36}
			PTR	`mail-byapr04cu00306.inbound.protection.outlook.com`
		A	2a01:111:f403:c92c::3^{🇺🇸 Microsoft2a01:111:f000::/36}
			PTR	`mail-dm5pr04cu00103.inbound.protection.outlook.com`
		A	2a01:111:f403:f802::^{🇺🇸 Microsoft2a01:111:f000::/36}
			PTR	`mail-byapr05cu00400.inbound.protection.outlook.com`
		A	2a01:111:f403:f901::1^{🇺🇸 Microsoft2a01:111:f000::/36}
			PTR	`mail-bl0pr02cu00601.inbound.protection.outlook.com`
		A	52.101.9.2^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-mn2pr02cu00202.inbound.protection.outlook.com`
		A	52.101.9.14^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-bl0pr03cu00206.inbound.protection.outlook.com`
		A	52.101.9.24^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-bl2pr02cu00400.inbound.protection.outlook.com`
		A	52.101.11.9^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-sn1pr02cu00101.inbound.protection.outlook.com`
TXT	`MS=ms48308442`
TXT	`_globalsign-domain-verification=h3matnSVVcp58lW6hprvjXqR7wbAc3pritKnT8l1Os`
TXT	`_globalsign-domain-verification=n6JwTmSciSIW0iGvUnqKwsN4kVbLEbXhq46MGYUQJl`
TXT	`_globalsign-domain-verification=v7feEwP418rcCmV7L_CrnJUJd6pA7msnjKv_L3TSjM`
TXT	`v=spf1 include:spf.protection.outlook.com -all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.45.160, 172.67.216.107
		IPv6 hints	2606:4700:3031::ac43:d86b, 2606:4700:3036::6815:2da0
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=250, name=cloudflare-ech.com
SOA	`hans.ns.cloudflare.com`dns@cloudflare.com serial=2400572057

`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=1776062257

Same first word

crctek.com

Similar names

crcket.com

trekcc.com

crcket.info

kccert.org

ccrtek.com

ckcert.com

ckcert.be

rkctec.info

trekcc.org

krccte.com

rcteck.com

rkctec.com

ckcert.eu

DNS History

11 records (7 active, 4 former)

●NShans.ns.cloudflare.com2026-04-03 → 2026-04-13 · 3 obs

○ 2017-06-01 09:01:26
● 2026-04-03 08:10:48
● 2026-04-13 06:40:56

○NSns1.hover.com2015-07-19 → 2017-06-01 · 4 obs

● 2015-07-19 10:53:20
● 2017-06-01 09:01:26
○ 2026-04-03 08:10:48
○ 2026-04-13 06:40:56

○NSns2.hover.com2015-07-19 → 2017-06-01 · 4 obs

● 2015-07-19 10:53:20
● 2017-06-01 09:01:26
○ 2026-04-03 08:10:48
○ 2026-04-13 06:40:56

●NSvenus.ns.cloudflare.com2026-04-03 → 2026-04-13 · 3 obs

○ 2017-06-01 09:01:26
● 2026-04-03 08:10:48
● 2026-04-13 06:40:56

●MXcrctek-com.mail.protection.outlook.com2015-07-19 → 2026-04-13 · 2 obs

● 2015-07-19 10:53:20
● 2026-04-13 06:40:56

●A104.21.45.1602026-04-03 → 2026-04-13 · 3 obs

○ 2017-06-01 09:01:26
● 2026-04-03 08:10:48
● 2026-04-13 06:40:56

●A172.67.216.1072026-04-03 → 2026-04-13 · 3 obs

○ 2017-06-01 09:01:26
● 2026-04-03 08:10:48
● 2026-04-13 06:40:56

●A2606:4700:3031::ac43:d86b2026-04-03 → 2026-04-13 · 3 obs

○ 2017-06-01 09:01:26
● 2026-04-03 08:10:48
● 2026-04-13 06:40:56

●A2606:4700:3036::6815:2da02026-04-03 → 2026-04-13 · 3 obs

○ 2017-06-01 09:01:26
● 2026-04-03 08:10:48
● 2026-04-13 06:40:56

○A64.98.145.302016-08-13 → 2017-06-01 · 5 obs

○ 2016-03-17 21:52:52
● 2016-08-13 23:09:10
● 2017-06-01 09:01:26
○ 2026-04-03 08:10:48
○ 2026-04-13 06:40:56

○A64.99.80.302015-07-19 → 2016-03-17 · 4 obs

● 2015-07-19 10:53:20
● 2016-03-17 21:52:52
○ 2016-08-13 23:09:10
○ 2026-04-13 06:40:56

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
crctek.com	hans.ns.cloudflare.com, venus.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.193.175

NS records: hans.ns.cloudflare.com, venus.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for crctek.com (unsigned zone)

⏱️ Timing

Total: 131ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.45.160, 172.67.216.107`
AAAA	2	`2606:4700:3036::6815:2da0, 2606:4700:3031::ac43:d86b`
NS	2	`hans.ns.cloudflare.com, venus.ns.cloudflare.com`
MX	1	`crctek-com.mail.protection.outlook.com (`
TXT	5	`MS=ms48308442, _globalsign-domain-verification=h3matnSV...`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`hans.ns.cloudflare.com dns.cloudflare.co`

📌 Glue Records Collected

Total: 12

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

Analysis

IP Addresses

crctek.com points to four IP numbers: 2606:4700:3031::ac43:d86b, 2606:4700:3036::6815:2da0, 104.21.45.160 and 172.67.216.107.

Other host names including stfweb.lv, kholmscschola1.ru, www.tirocenter.com.br, www.kgff.com and gosurf.no share IP numbers with crctek.com.

Name Servers

crctek.com's delegation uses two name servers, hans.ns.cloudflare.com and venus.ns.cloudflare.com.

crctek.com shares the same name server setup as other domains, for example jgke.fi, thekingcompany.com, thestonesurfaces.com, kraftmarktplus.com and circuloblanco.com.mx.

crctek.com at least partially shares name servers with other domains, including edp-dentaire.fr, addsomespice.com.au, killineytravel.ie, phillyexpress.com and nrjvtbnx.bar.

these name servers are commonly used with brenda.ns.cloudflare.com, dante.ns.cloudflare.com, elle.ns.cloudflare.com, memphis.ns.cloudflare.com and leah.ns.cloudflare.com.

Host names with six IP numbers:

hans.ns.cloudflare.com points to: 2606:4700:58::adf5:3baf, 2803:f800:50::6ca2:c1af, 2a06:98c1:50::ac40:21af, 108.162.193.175, 172.64.33.175 and 173.245.59.175.

venus.ns.cloudflare.com points to: 2606:4700:50::adf5:3aeb, 2803:f800:50::6ca2:c0eb, 2a06:98c1:50::ac40:20eb, 108.162.192.235, 172.64.32.235 and 173.245.58.235.

Mail Servers

crctek.com is handled by a single mail server, crctek-com.mail.protection.outlook.com.

Hostname crctek-com.mail.protection.outlook.com points to eight IP numbers: 2a01:111:f403:c902::16, 2a01:111:f403:c92c::3, 2a01:111:f403:f802::, 2a01:111:f403:f901::1, 52.101.9.2, 52.101.9.14, 52.101.9.24 and 52.101.11.9.

crctek.com - robtex.com

crctek.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

Mail Servers

`crctek.com`

`com`