🛡️Domain Reputation CheckBlocklist, phishing & malware status→

`interviewstack.io`

DNSSEC	⚠️ Not signed
A	216.198.79.1^{🇺🇸 Amazon216.198.79.0/24 EC2 Prefix}
NS	`curitiba.ns.porkbun.com` ⭐
		A	2400:cb00:2049:1::adf5:3a25^{🇺🇸 Cloudflare2400:cb00:2049::/48 , Inc. 101 Townsend Street}
		A	173.245.58.37^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
NS	`fortaleza.ns.porkbun.com`
		A	2400:cb00:2049:1::a29f:88c^{🇺🇸 Cloudflare2400:cb00:2049::/48 , Inc. 101 Townsend Street}
		A	162.159.8.140^{Cloudflare162.159.8.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
NS	`maceio.ns.porkbun.com`
		A	2400:cb00:2049:1::a29f:bb4^{🇺🇸 Cloudflare2400:cb00:2049::/48 , Inc. 101 Townsend Street}
		A	162.159.11.180^{Cloudflare162.159.11.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
NS	`salvador.ns.porkbun.com`
		A	2400:cb00:2049:1::a29f:a96^{🇺🇸 Cloudflare2400:cb00:2049::/48 , Inc. 101 Townsend Street}
		A	162.159.10.150^{Cloudflare162.159.10.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
MX	`inbound-smtp.us-east-1.amazonaws.com` ⭐
		A	3.211.210.226^{🇺🇸 Amazon3.208.0.0/12 EC2 IAD prefix}
			PTR	`ec2-3-211-210-226.compute-1.amazonaws.com`
		A	44.206.9.87^{🇺🇸 Amazon44.192.0.0/11 EC2 IAD prefix}
			PTR	`ec2-44-206-9-87.compute-1.amazonaws.com`
		A	44.210.166.32^{🇺🇸 Amazon44.192.0.0/11 EC2 IAD prefix}
			PTR	`ec2-44-210-166-32.compute-1.amazonaws.com`
		A	54.164.173.191^{🇺🇸 Amazon54.164.0.0/15 EC2 IAD prefix}
			PTR	`ec2-54-164-173-191.compute-1.amazonaws.com`
		A	54.197.5.236^{🇺🇸 Amazon54.196.0.0/15 EC2 IAD 54.196.0.0/15}
			PTR	`ec2-54-197-5-236.compute-1.amazonaws.com`
TXT	`google-site-verification=33aU287YMn_cHNknWr_F2vn1I-4MYLpEVkX7okBxHTI`
SOA	`curitiba.ns.porkbun.com`dns@cloudflare.com serial=2397279060

`io`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a0.nic.io` ⭐
	NS	`a2.nic.io`
	NS	`b0.nic.io`
	NS	`c0.nic.io`
	SOA	`a0.nic.io`hostmaster@donuts.email serial=1788082222

Same first word

interviewstack.ai

interviewstack.one

interviewstack.com

interviewstack.io

Similar names

stackinterview.com

Previous names

Next names

DNS History

6 records (6 active, 0 former)

●NScuritiba.ns.porkbun.com2026-07-07 → 2026-08-30 · 2 obs

● 2026-07-07 10:11:28
● 2026-08-30 10:05:24

●NSfortaleza.ns.porkbun.com2026-07-07 → 2026-08-30 · 2 obs

● 2026-07-07 10:11:28
● 2026-08-30 10:05:24

●NSmaceio.ns.porkbun.com2026-07-07 → 2026-08-30 · 2 obs

● 2026-07-07 10:11:28
● 2026-08-30 10:05:24

●NSsalvador.ns.porkbun.com2026-07-07 → 2026-08-30 · 2 obs

● 2026-07-07 10:11:28
● 2026-08-30 10:05:24

●MXinbound-smtp.us-east-1.amazonaws.com2026-07-07 → 2026-08-30 · 2 obs

● 2026-07-07 10:11:28
● 2026-08-30 10:05:24

●A216.198.79.12026-07-07 → 2026-08-30 · 2 obs

● 2026-07-07 10:11:28
● 2026-08-30 10:05:24

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
io	a0.nic.io, a2.nic.io, b0.nic.io, c0.nic.io	8 records
interviewstack.io	maceio.ns.porkbun.com, fortaleza.ns.porkbun.com, salvador.ns.porkbun.com, curitiba.ns.porkbun.com	-

✅ Authoritative Response

Server:162.159.11.180

NS records: maceio.ns.porkbun.com, fortaleza.ns.porkbun.com, salvador.ns.porkbun.com, curitiba.ns.porkbun.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for interviewstack.io (unsigned zone)

⏱️ Timing

Total: 266ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`216.198.79.1`
NS	4	`curitiba.ns.porkbun.com, fortaleza.ns.porkbun.com...`
MX	1	`inbound-smtp.us-east-1.amazonaws.com (pr`
TXT	1	`google-site-verification=33aU287YMn_cHNk`
SOA	1	`curitiba.ns.porkbun.com dns.cloudflare.c`

📌 Glue Records Collected

Total: 8

In-bailiwick: 8 (a0.nic.io, a2.nic.io, b0.nic.io...)

Analysis

IP Addresses

interviewstack.io has exactly one IP address — 216.198.79.1.

beemoneyed.in, submit-this-form.com, blintecprotecaoveicular.com.br plus two other host names have IP numbers in common with interviewstack.io.

Name Servers

Four name servers handle the delegation for interviewstack.io: curitiba.ns.porkbun.com, fortaleza.ns.porkbun.com, maceio.ns.porkbun.com and salvador.ns.porkbun.com.

interviewstack.io has at least partial name server overlap with other domains, such as smalloak.net, necessaryhope.net, gaboriaud.xyz and two others.

curitiba.ns.porkbun.com, fortaleza.ns.porkbun.com, maceio.ns.porkbun.com and salvador.ns.porkbun.com all point to exactly two IP numbers each: curitiba.ns.porkbun.com → 173.245.58.37 and 2400:cb00:2049:1::adf5:3a25; fortaleza.ns.porkbun.com → 162.159.8.140 and 2400:cb00:2049:1::a29f:88c; maceio.ns.porkbun.com → 162.159.11.180 and 2400:cb00:2049:1::a29f:bb4; salvador.ns.porkbun.com → 162.159.10.150 and 2400:cb00:2049:1::a29f:a96.

Mail Servers

interviewstack.io uses one mail server — inbound-smtp.us-east-1.amazonaws.com.

The mail server setup of interviewstack.io matches that of other domains such as matec-tecnologia.es, suxrobgm.net, noumi0k.slack.com and two others.

At least some of the mail servers used by interviewstack.io are shared with other domains: netline.atlassian.net, vigoasia.com, trangnguyen.atlassian.net and two others among them.

These mail servers tend to be used in conjunction with the mail servers inbound-smtp.us-west-2.amazonaws.com.

inbound-smtp.us-east-1.amazonaws.com has five IP addresses: 3.211.210.226, 44.206.9.87, 44.210.166.32 plus two others.

interviewstack.io - robtex.com