techinterviewprep.com - dns.ninja

🛡️Domain Reputation CheckBlocklist, phishing & malware status→

`techinterviewprep.com`

DNSSEC	⚠️ Not signed
NS	`ulla.ns.cloudflare.com` ⭐
		A	2606:4700:50::adf5:3ae9^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ulla.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c0e9^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`ulla.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:20e9^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`ulla.ns.cloudflare.com`
		A	108.162.192.233^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ulla.ns.cloudflare.com`
		A	172.64.32.233^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ulla.ns.cloudflare.com`
		A	173.245.58.233^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ulla.ns.cloudflare.com`
NS	`zac.ns.cloudflare.com`
		A	2606:4700:58::a29f:2cb2^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`zac.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c3b2^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`zac.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:23b2^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`zac.ns.cloudflare.com`
		A	108.162.195.178^{🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`zac.ns.cloudflare.com`
		A	162.159.44.178^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`zac.ns.cloudflare.com`
		A	172.64.35.178^{🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`zac.ns.cloudflare.com`
SOA	`ulla.ns.cloudflare.com`dns@cloudflare.com serial=2415281329

`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=1790341109

Previously MX for

techinterviewprep.com

Same first word

techinterviewprep.org

techinterviewprep.online

techinterviewprep.com

techinterviewprep.support

Previous names

Next names

DNS History

9 records (2 active, 7 former)

○NSns1.dknx.com2015-05-23 → 2016-03-27 · 4 obs

● 2015-05-23 12:30:56
● 2016-03-27 08:27:48
○ 2016-09-10 02:50:10
○ 2026-09-25 13:00:32

○NSns2.dknx.com2015-05-23 → 2016-03-27 · 4 obs

● 2015-05-23 12:30:56
● 2016-03-27 08:27:48
○ 2016-09-10 02:50:10
○ 2026-09-25 13:00:32

○NSparking1.mdnsservice.com2016-09-10 → 2017-04-01 · 5 obs

○ 2016-03-27 08:27:48
● 2016-09-10 02:50:10
● 2017-04-01 20:24:44
○ 2026-09-17 10:41:18
○ 2026-09-25 13:00:32

○NSparking2.mdnsservice.com2016-09-10 → 2017-04-01 · 5 obs

○ 2016-03-27 08:27:48
● 2016-09-10 02:50:10
● 2017-04-01 20:24:44
○ 2026-09-17 10:41:18
○ 2026-09-25 13:00:32

●NSulla.ns.cloudflare.com2026-09-17 → 2026-09-25 · 3 obs

○ 2017-04-01 20:24:44
● 2026-09-17 10:41:18
● 2026-09-25 13:00:32

●NSzac.ns.cloudflare.com2026-09-17 → 2026-09-25 · 3 obs

○ 2017-04-01 20:24:44
● 2026-09-17 10:41:18
● 2026-09-25 13:00:32

○MXtechinterviewprep.com2015-05-23 → 2016-03-27 · 4 obs

● 2015-05-23 12:30:56
● 2016-03-27 08:27:48
○ 2016-09-10 02:50:10
○ 2026-09-25 13:00:32

○A208.91.197.1602016-09-10 → 2017-04-01 · 5 obs

○ 2016-03-27 08:27:48
● 2016-09-10 02:50:10
● 2017-04-01 20:24:44
○ 2026-09-17 10:41:18
○ 2026-09-25 13:00:32

○A209.59.137.932015-05-23 → 2016-03-27 · 4 obs

● 2015-05-23 12:30:56
● 2016-03-27 08:27:48
○ 2016-09-10 02:50:10
○ 2026-09-25 13:00:32

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
techinterviewprep.com	ulla.ns.cloudflare.com, zac.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.192.233

NS records: ulla.ns.cloudflare.com, zac.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for techinterviewprep.com (unsigned zone)

⏱️ Timing

Total: 144ms | Queries: -

📄 Records

Type	Count	Sample Data
NS	2	`ulla.ns.cloudflare.com, zac.ns.cloudflare.com`
SOA	1	`ulla.ns.cloudflare.com dns.cloudflare.co`

📌 Glue Records Collected

Total: 12

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

Analysis

Name Servers

DNS delegation for techinterviewprep.com points to two name servers: ulla.ns.cloudflare.com and zac.ns.cloudflare.com.

techinterviewprep.com uses the same name servers as several other domains — among them scholargalaxy.us, comfortsofhomemarion.com, cryptanova.de and two more.

There is at least partial name server overlap between techinterviewprep.com and other domains — wealthboost.help, texomaheartburnandreflux.com, clah.com.au and two more among them.

These name servers are routinely deployed together with the name servers clay.ns.cloudflare.com.

Hostnames that resolve to 6 IP addresses:

ulla.ns.cloudflare.com has IP addresses 108.162.192.233, 172.64.32.233 and 173.245.58.233, plus 3 other.

zac.ns.cloudflare.com has IP addresses 108.162.195.178, 162.159.44.178 and 172.64.35.178, plus 3 other.