`justcrackinterview.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3031::6815:473b^{🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3033::ac43:a9fb^{🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.71.59^{Cloudflare104.21.64.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.169.251^{🇺🇸 Cloudflare172.67.160.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`cora.ns.cloudflare.com` ⭐
		A	2606:4700:50::a29f:26c3^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`cora.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c2c3^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`cora.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:22c3^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`cora.ns.cloudflare.com`
		A	108.162.194.195^{🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`cora.ns.cloudflare.com`
		A	162.159.38.195^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`cora.ns.cloudflare.com`
		A	172.64.34.195^{🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`cora.ns.cloudflare.com`
NS	`terry.ns.cloudflare.com`
		A	2606:4700:58::adf5:3bed^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`terry.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c1ed^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`terry.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:21ed^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`terry.ns.cloudflare.com`
		A	108.162.193.237^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`terry.ns.cloudflare.com`
		A	172.64.33.237^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`terry.ns.cloudflare.com`
		A	173.245.59.237^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`terry.ns.cloudflare.com`
MX	`_dc-mx.712111816df7.justcrackinterview.com` ⭐
		A	162.241.122.137^{🇺🇸 EIGI162.241.122.0/24 Google}
			PTR	`162-241-122-137.unifiedlayer.com`
TXT	`v=spf1 +a +mx +ip4:192.185.129.121 +ip4:162.241.122.137 +include:webhostbox.n...`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4	104.21.71.59, 172.67.169.251
		IPv6	2606:4700:3031::6815:473b, 2606:4700:3033::ac43:a9fb
SOA	`cora.ns.cloudflare.com`dns@cloudflare.com serial=2397418459

`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=1771291435

Subdomains

mail.justcrackinterview.com

Same first word

justcrackinterview.com

DNS History

14 records (7 active, 7 former)

●NScora.ns.cloudflare.com2026-03-02 → 2026-03-03 · 3 obs

○ 2017-04-21 06:02:04
● 2026-03-02 22:32:08
● 2026-03-03 05:34:26

○NSns23.domaincontrol.com2015-07-04 → 2017-04-21 · 4 obs

● 2015-07-04 06:14:28
● 2017-04-21 06:02:04
○ 2026-03-02 22:32:08
○ 2026-03-03 05:34:26

○NSns24.domaincontrol.com2015-07-04 → 2017-04-21 · 4 obs

● 2015-07-04 06:14:28
● 2017-04-21 06:02:04
○ 2026-03-02 22:32:08
○ 2026-03-03 05:34:26

●NSterry.ns.cloudflare.com2026-03-02 → 2026-03-03 · 3 obs

○ 2017-04-21 06:02:04
● 2026-03-02 22:32:08
● 2026-03-03 05:34:26

●MX_dc-mx.712111816df7.justcrackinterview.com2026-03-02 → 2026-03-03 · 3 obs

○ 2017-04-21 06:02:04
● 2026-03-02 22:32:08
● 2026-03-03 05:34:26

○MXmailstore1.secureserver.net2015-07-04 → 2017-04-21 · 4 obs

● 2015-07-04 06:14:28
● 2017-04-21 06:02:04
○ 2026-03-02 22:32:08
○ 2026-03-03 05:34:26

○MXsmtp.secureserver.net2015-07-04 → 2017-04-21 · 4 obs

● 2015-07-04 06:14:28
● 2017-04-21 06:02:04
○ 2026-03-02 22:32:08
○ 2026-03-03 05:34:26

●A104.21.71.592026-03-02 → 2026-03-03 · 3 obs

○ 2017-04-21 06:02:04
● 2026-03-02 22:32:08
● 2026-03-03 05:34:26

○A172.64.80.12026-03-02 → 2026-03-03 · 2 obs

○ 2026-03-02 22:32:08
○ 2026-03-03 05:34:26

●A172.67.169.2512026-03-02 → 2026-03-03 · 3 obs

○ 2017-04-21 06:02:04
● 2026-03-02 22:32:08
● 2026-03-03 05:34:26

○A2606:4700:130:436c:6f75:6466:6c61:72652026-03-02 → 2026-03-03 · 2 obs

○ 2026-03-02 22:32:08
○ 2026-03-03 05:34:26

●A2606:4700:3031::6815:473b2026-03-02 → 2026-03-03 · 3 obs

○ 2017-04-21 06:02:04
● 2026-03-02 22:32:08
● 2026-03-03 05:34:26

●A2606:4700:3033::ac43:a9fb2026-03-02 → 2026-03-03 · 3 obs

○ 2017-04-21 06:02:04
● 2026-03-02 22:32:08
● 2026-03-03 05:34:26

○A50.62.160.412015-07-04 → 2017-04-21 · 4 obs

● 2015-07-04 06:14:28
● 2017-04-21 06:02:04
○ 2026-03-02 22:32:08
○ 2026-03-03 05:34:26

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
justcrackinterview.com	terry.ns.cloudflare.com, cora.ns.cloudflare.com	12 records

✅ Authoritative Response

Server: 108.162.194.195

NS records: terry.ns.cloudflare.com, cora.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for justcrackinterview.com (unsigned zone)

⏱️ Timing

Total: 353ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.169.251, 104.21.71.59`
AAAA	2	`2606:4700:3031::6815:473b, 2606:4700:3033::ac43:a9fb`
NS	2	`cora.ns.cloudflare.com, terry.ns.cloudflare.com`
MX	1	`_dc-mx.712111816df7.justcrackinterview.c`
TXT	1	`v=spf1 +a +mx +ip4:192.185.129.121 +ip4:`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`cora.ns.cloudflare.com dns.cloudflare.co`

📌 Glue Records Collected

Total: 12

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

Analysis

Hierarchy

justcrackinterview.com is the parent of mail.justcrackinterview.com.

IP Addresses

Four IP numbers are pointed to by justcrackinterview.com: 2606:4700:3031::6815:473b, 2606:4700:3033::ac43:a9fb, 104.21.71.59 and 172.67.169.251.

other host names including duocphamnhatnhat.com, 69366.cn, hackiee.com, zajac.sk and tamilkolli.com share IP numbers with justcrackinterview.com.

Name Servers

justcrackinterview.com is delegated to two name servers cora.ns.cloudflare.com and terry.ns.cloudflare.com.

justcrackinterview.com shares the same name server setup as other domains, for instance pokerbotai.com, pokerbotdownload.info, 1212001.xyz, xpokerbot.com and cuacuon198.com.

justcrackinterview.com at least partially shares name servers with other domains, for instance go-teca.org, argondigital.com.br, ghostpractice.co.za, gemrealestate.net and premiumize.me.

these name servers are commonly used alongside kyrie.ns.cloudflare.com.

Host names with six IP numbers:

Host name cora.ns.cloudflare.com points to: 2606:4700:50::a29f:26c3, 2803:f800:50::6ca2:c2c3, 2a06:98c1:50::ac40:22c3, 108.162.194.195, 162.159.38.195 and 172.64.34.195.

Host name terry.ns.cloudflare.com points to: 2606:4700:58::adf5:3bed, 2803:f800:50::6ca2:c1ed, 2a06:98c1:50::ac40:21ed, 108.162.193.237, 172.64.33.237 and 173.245.59.237.

Mail Servers

justcrackinterview.com is handled by a single mail server, _dc-mx.712111816df7.justcrackinterview.com.

_dc-mx.712111816df7.justcrackinterview.com resolves to IP 162.241.122.137.

justcrackinterview.com - robtex.com