`contracko.com`

DNSSEC	⚠️ Not signed
A	2606:4700::6812:49c^{🇺🇸 Cloudflare2606:4700::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700::6812:59c^{🇺🇸 Cloudflare2606:4700::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.18.4.156^{Cloudflare104.18.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.18.5.156^{Cloudflare104.18.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`doug.ns.cloudflare.com` ⭐
		A	2606:4700:58::adf5:3b9f^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`doug.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c19f^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`doug.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:219f^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`doug.ns.cloudflare.com`
		A	108.162.193.159^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`doug.ns.cloudflare.com`
		A	172.64.33.159^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`doug.ns.cloudflare.com`
		A	173.245.59.159^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`doug.ns.cloudflare.com`
NS	`mira.ns.cloudflare.com`
		A	2606:4700:50::adf5:3acc^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`mira.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c0cc^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`mira.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:20cc^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`mira.ns.cloudflare.com`
		A	108.162.192.204^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`mira.ns.cloudflare.com`
		A	172.64.32.204^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`mira.ns.cloudflare.com`
		A	173.245.58.204^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`mira.ns.cloudflare.com`
MX	`aspmx.l.google.com` ⭐
		A	2607:f8b0:4023:c03::1b^{🇺🇸 Google2607:f8b0::/32}
			PTR	`dy-in-f27.1e100.net`
		A	142.251.2.27^{🇺🇸 Google142.251.2.0/24}
			PTR	`dl-in-f27.1e100.net`
MX	`alt1.aspmx.l.google.com`⁽⁵⁾
		A	2800:3f0:4003:c0f::1b^{🇨🇱 Google2800:3f0:4003::/48}
		A	108.177.123.27^{🇺🇸 Google108.177.123.0/24}
			PTR	`lcscld-in-f27.1e100.net`
MX	`alt2.aspmx.l.google.com`⁽⁵⁾
		A	2a00:1450:400b:c02::1a^{🇮🇪 Google2a00:1450:400b::/48}
			PTR	`dj-in-f26.1e100.net`
		A	172.253.116.27^{🇺🇸 Google172.253.116.0/24}
			PTR	`dj-in-f27.1e100.net`
MX	`alt3.aspmx.l.google.com`⁽¹⁰⁾
		A	2a00:1450:4009:c0f::1b^{🇬🇧 Google2a00:1450:4009::/48}
			PTR	`yulhrs-in-f27.1e100.net`
		A	192.178.223.26^{🇺🇸 Google192.178.223.0/24}
			PTR	`yulhrs-in-f26.1e100.net`
MX	`alt4.aspmx.l.google.com`⁽¹⁰⁾
		A	2607:f8b0:4001:c70::1b^{🇺🇸 Google2607:f8b0:4001::/48}
			PTR	`yucbful-in-f27.1e100.net`
		A	192.178.209.27^{🇺🇸 Google192.178.209.0/24}
			PTR	`yucbful-in-f27.1e100.net`
TXT	`google-site-verification=2ypzTlu_5eMv36mnoW6J-lJAQzEJl-H47iFr7wlyWGw`
TXT	`v=spf1 include:_spf.google.com -all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.18.4.156, 104.18.5.156
		IPv6 hints	2606:4700::6812:49c, 2606:4700::6812:59c
SOA	`doug.ns.cloudflare.com`dns@cloudflare.com serial=2403873015

`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=1778500336

Same first word

contracko.com

Similar names

oncotrack.eu

ocontrack.com

nocorktca.com

catonrock.lol

catonrock.com

ocontrack.org

oncotrack.com

DNS History

15 records (11 active, 4 former)

●NSdoug.ns.cloudflare.com2026-04-24 → 2026-05-11 · 2 obs

● 2026-04-24 10:26:10
● 2026-05-11 12:16:14

●NSmira.ns.cloudflare.com2026-04-24 → 2026-05-11 · 2 obs

● 2026-04-24 10:26:10
● 2026-05-11 12:16:14

●MXalt1.aspmx.l.google.com2026-04-24 → 2026-05-11 · 2 obs

● 2026-04-24 10:26:10
● 2026-05-11 12:16:14

●MXalt2.aspmx.l.google.com2026-04-24 → 2026-05-11 · 2 obs

● 2026-04-24 10:26:10
● 2026-05-11 12:16:14

●MXalt3.aspmx.l.google.com2026-04-24 → 2026-05-11 · 2 obs

● 2026-04-24 10:26:10
● 2026-05-11 12:16:14

●MXalt4.aspmx.l.google.com2026-04-24 → 2026-05-11 · 2 obs

● 2026-04-24 10:26:10
● 2026-05-11 12:16:14

●MXaspmx.l.google.com2026-04-24 → 2026-05-11 · 2 obs

● 2026-04-24 10:26:10
● 2026-05-11 12:16:14

●A104.18.4.1562026-05-11 → 2026-05-11 · 3 obs

○ 2026-04-24 10:26:10
● 2026-05-11 12:16:12
● 2026-05-11 12:16:14

●A104.18.5.1562026-05-11 → 2026-05-11 · 3 obs

○ 2026-04-24 10:26:10
● 2026-05-11 12:16:12
● 2026-05-11 12:16:14

○A188.114.96.02026-04-24 → 2026-04-24 · 3 obs

● 2026-04-24 10:26:10
○ 2026-05-11 12:16:12
○ 2026-05-11 12:16:14

○A188.114.97.02026-04-24 → 2026-04-24 · 3 obs

● 2026-04-24 10:26:10
○ 2026-05-11 12:16:12
○ 2026-05-11 12:16:14

●A2606:4700::6812:49c2026-05-11 → 2026-05-11 · 3 obs

○ 2026-04-24 10:26:10
● 2026-05-11 12:16:12
● 2026-05-11 12:16:14

●A2606:4700::6812:59c2026-05-11 → 2026-05-11 · 3 obs

○ 2026-04-24 10:26:10
● 2026-05-11 12:16:12
● 2026-05-11 12:16:14

○A2a06:98c1:3120::2026-04-24 → 2026-04-24 · 3 obs

● 2026-04-24 10:26:10
○ 2026-05-11 12:16:12
○ 2026-05-11 12:16:14

○A2a06:98c1:3121::2026-04-24 → 2026-04-24 · 3 obs

● 2026-04-24 10:26:10
○ 2026-05-11 12:16:12
○ 2026-05-11 12:16:14

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
contracko.com	doug.ns.cloudflare.com, mira.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.193.159

NS records: doug.ns.cloudflare.com, mira.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for contracko.com (unsigned zone)

⏱️ Timing

Total: 423ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.18.5.156, 104.18.4.156`
AAAA	2	`2606:4700::6812:59c, 2606:4700::6812:49c`
NS	2	`doug.ns.cloudflare.com, mira.ns.cloudflare.com`
MX	5	`aspmx.l.google.com (pri: 1), alt3.aspmx.l.google.com (pri: 10)...`
TXT	2	`google-site-verification=2ypzTlu_5eMv36m, v=spf1 include:_spf.google.com -all`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`doug.ns.cloudflare.com dns.cloudflare.co`

📌 Glue Records Collected

Total: 12

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

Analysis

IP Addresses

contracko.com points to four IP numbers: 2606:4700::6812:49c, 2606:4700::6812:59c, 104.18.4.156 and 104.18.5.156.

Other host names, for instance www.888starz.global, digitalhardik.in.net, pkto.moph.go.th.cdn.cloudflare.net, solarbet.com and imbercourtreporters.com share IP numbers with contracko.com.

Name Servers

contracko.com's delegation is to two name servers doug.ns.cloudflare.com and mira.ns.cloudflare.com.

contracko.com shares the same name server configuration as other domains, such as airav.cc, airavtvasiash.work, airavsuper9.net, artfulteachingjoyfullearning.com and bugsnbugs.com.

contracko.com at least partially shares its name servers with other domains, for instance autorent.ee, returnofthecaferacers.com, resorthomemls.com, com-invest-services-broker-alpha.cloud and tikipungahigh.school.nz.

These name servers are commonly used alongside chan.ns.cloudflare.com and candy.ns.cloudflare.com.

Host names with six IP numbers:

doug.ns.cloudflare.com points to: 2606:4700:58::adf5:3b9f, 2803:f800:50::6ca2:c19f, 2a06:98c1:50::ac40:219f, 108.162.193.159, 172.64.33.159 and 173.245.59.159.

mira.ns.cloudflare.com points to: 2606:4700:50::adf5:3acc, 2803:f800:50::6ca2:c0cc, 2a06:98c1:50::ac40:20cc, 108.162.192.204, 172.64.32.204 and 173.245.58.204.

Mail Servers

Five mail servers handle contracko.com: aspmx.l.google.com, alt1.aspmx.l.google.com, alt2.aspmx.l.google.com, alt3.aspmx.l.google.com and alt4.aspmx.l.google.com.

contracko.com shares some mail servers with other domains, including lesflammesawards.com, perchhomes.co, pulperiaquilapan.com, seanpiper.com and ns500698.ns500759.ns500758.ns500698.ns500735.ns500735.ns500736.ns500735.ns500698.ns500576.ns500576.ns500576.ns500576.ns500576.ns500619.ns500619.trackreceptor.com.

These mail servers are commonly used alongside the mail servers aspmx2.googlemail.com and aspmx3.googlemail.com.

Host names with two IP numbers:

aspmx.l.google.com points to 2607:f8b0:4023:c03::1b and 142.251.2.27.

alt1.aspmx.l.google.com points to 2800:3f0:4003:c0f::1b and 108.177.123.27.

alt2.aspmx.l.google.com points to 2a00:1450:400b:c02::1a and 172.253.116.27.

alt3.aspmx.l.google.com points to 2a00:1450:4009:c0f::1b and 192.178.223.26.

alt4.aspmx.l.google.com points to 2607:f8b0:4001:c70::1b and 192.178.209.27.

contracko.com - robtex.com

contracko.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

`contracko.com`

`com`