stackup.engineer - dns.ninja

🛡️Domain Reputation CheckBlocklist, phishing & malware status→

`stackup.engineer`

DNSSEC	⚠️ Not signed
A	217.21.90.71^{🇮🇳 IIHOS001217.21.80.0/20 HOSTINGER IN}
NS	`amy.ns.cloudflare.com` ⭐
		A	2606:4700:50::adf5:3a65^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`amy.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c065^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`amy.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2065^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`amy.ns.cloudflare.com`
		A	108.162.192.101^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`amy.ns.cloudflare.com`
		A	172.64.32.101^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`amy.ns.cloudflare.com`
		A	173.245.58.101^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`amy.ns.cloudflare.com`
NS	`phil.ns.cloudflare.com`
		A	2606:4700:58::adf5:3b89^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`phil.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c189^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`phil.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2189^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`phil.ns.cloudflare.com`
		A	108.162.193.137^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`phil.ns.cloudflare.com`
		A	172.64.33.137^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`phil.ns.cloudflare.com`
		A	173.245.59.137^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`phil.ns.cloudflare.com`
MX	`in1-smtp.messagingengine.com` ⭐
		A	103.168.172.216^{🇺🇸 TELX-AS151847103.168.172.0/24 Fastmail Pty Ltd Level 2, 114 William Street}
			PTR	`phl-mx-01.messagingengine.com`
		A	103.168.172.217^{🇺🇸 TELX-AS151847103.168.172.0/24 Fastmail Pty Ltd Level 2, 114 William Street}
			PTR	`phl-mx-02.messagingengine.com`
		A	103.168.172.218^{🇺🇸 TELX-AS151847103.168.172.0/24 Fastmail Pty Ltd Level 2, 114 William Street}
			PTR	`phl-mx-03.messagingengine.com`
		A	103.168.172.219^{🇺🇸 TELX-AS151847103.168.172.0/24 Fastmail Pty Ltd Level 2, 114 William Street}
			PTR	`phl-mx-04.messagingengine.com`
		A	103.168.172.220^{🇺🇸 TELX-AS151847103.168.172.0/24 Fastmail Pty Ltd Level 2, 114 William Street}
			PTR	`phl-mx-05.messagingengine.com`
		A	103.168.172.221^{🇺🇸 TELX-AS151847103.168.172.0/24 Fastmail Pty Ltd Level 2, 114 William Street}
			PTR	`phl-mx-06.messagingengine.com`
		A	103.168.172.222^{🇺🇸 TELX-AS151847103.168.172.0/24 Fastmail Pty Ltd Level 2, 114 William Street}
			PTR	`phl-mx-07.messagingengine.com`
		A	103.168.172.223^{🇺🇸 TELX-AS151847103.168.172.0/24 Fastmail Pty Ltd Level 2, 114 William Street}
			PTR	`phl-mx-08.messagingengine.com`
MX	`in2-smtp.messagingengine.com`⁽²⁰⁾
		A	202.12.124.216^{TELX-AS151847202.12.124.0/24 Fastmail Pty Ltd Level 2, 114 William Street}
			PTR	`stl-mx-01.messagingengine.com`
		A	202.12.124.217^{TELX-AS151847202.12.124.0/24 Fastmail Pty Ltd Level 2, 114 William Street}
			PTR	`stl-mx-02.messagingengine.com`
		A	202.12.124.218^{TELX-AS151847202.12.124.0/24 Fastmail Pty Ltd Level 2, 114 William Street}
			PTR	`stl-mx-03.messagingengine.com`
		A	202.12.124.219^{TELX-AS151847202.12.124.0/24 Fastmail Pty Ltd Level 2, 114 William Street}
			PTR	`stl-mx-04.messagingengine.com`
TXT	`mailerlite-domain-verification=645951b5400fb1ed3c5ed606ed1fb0471ea8e2e4`
TXT	`v=spf1 include:spf.messagingengine.com a mx include:_spf.mlsend.com ~all`
SOA	`amy.ns.cloudflare.com`dns@cloudflare.com serial=2412435947

`engineer`

	DNSSEC	🔒 Signed (DS record present)
	NS	`v0n0.nic.engineer` ⭐
	NS	`v0n1.nic.engineer`
	NS	`v0n2.nic.engineer`
	NS	`v0n3.nic.engineer`
	NS	`v2n0.nic.engineer`
	NS	`v2n1.nic.engineer`
	SOA	`v0n0.nic.engineer`hostmaster@donuts.email serial=1787307659

⚠️ On DNS blocklist: spam-tlds

Same first word

stackup.workers.dev

stackup.design

stackup.com

stackup.io

stackup.dev

stackup.co

stackup.co.uk

stackup.fi

stackup.digital

stackup.sh

stackup.expert

stackup.com.au

stackup.cn

stackup.it

stackup.tech

stackup.eu

stackup.ca

stackup.ai

stackup.me

stackup.guru

stackup.jp

stackup.net

stackup.education

stackup.co.jp

stackup.engineer

stackup.org

stackup.casino

stackup.finance

Similar names

upstack.agency

tupacks.com

cuptask.com

skatcup.info

upstack.co

skatcup.com

upstack.com

kutaspc.com

upstack.io

utpacks.com

taskcup.com

skatcup.eu

upstack.net

skatcup.de

upstack.my.id

pustack.com

Previous names

Next names

DNS History

5 records (5 active, 0 former)

●NSamy.ns.cloudflare.com2026-08-20 → 2026-08-21 · 2 obs

● 2026-08-20 20:23:16
● 2026-08-21 10:29:16

●NSphil.ns.cloudflare.com2026-08-20 → 2026-08-21 · 2 obs

● 2026-08-20 20:23:16
● 2026-08-21 10:29:16

●MXin1-smtp.messagingengine.com2026-08-20 → 2026-08-21 · 2 obs

● 2026-08-20 20:23:16
● 2026-08-21 10:29:16

●MXin2-smtp.messagingengine.com2026-08-20 → 2026-08-21 · 2 obs

● 2026-08-20 20:23:16
● 2026-08-21 10:29:16

●A217.21.90.712026-08-20 → 2026-08-21 · 2 obs

● 2026-08-20 20:23:16
● 2026-08-21 10:29:16

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
engineer	v0n0.nic.engineer, v0n1.nic.engineer, v0n2.nic.engineer, v0n3.nic.engineer...	12 records
stackup.engineer	amy.ns.cloudflare.com, phil.ns.cloudflare.com	-

✅ Authoritative Response

Server:108.162.192.101

NS records: amy.ns.cloudflare.com, phil.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for stackup.engineer (unsigned zone)

⏱️ Timing

Total: 764ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`217.21.90.71`
NS	2	`amy.ns.cloudflare.com, phil.ns.cloudflare.com`
MX	2	`in1-smtp.messagingengine.com (pri: 10), in2-smtp.messagingengine.com (pri: 20)`
TXT	2	`mailerlite-domain-verification=645951b54, v=spf1 include:spf.messagingengine.com a`
SOA	1	`amy.ns.cloudflare.com dns.cloudflare.com`

📌 Glue Records Collected

Total: 12

In-bailiwick: 12 (v0n0.nic.engineer, v0n0.nic.engineer, v0n1.nic.engineer...)

Analysis

IP Addresses

stackup.engineer has exactly one IP address — 217.21.90.71.

The host names delhiskinhospital.com, cruns.com, staxxasolar.com and sugisri.com all share IP numbers with stackup.engineer.

Name Servers

DNS delegation for stackup.engineer points to two name servers: amy.ns.cloudflare.com and phil.ns.cloudflare.com.

The name server configuration of stackup.engineer is shared with other domains, for instance seeyourimpact.org, brocode.live, sageapa.tips and two others.

There is at least partial name server overlap between stackup.engineer and other domains — 1bloger.cz, zhuk.xyz, freepop3.info and two more among them.

These name servers frequently co-occur with the name servers nolan.ns.cloudflare.com and byron.ns.cloudflare.com.

Hosts with 6 IP addresses each:

amy.ns.cloudflare.com has IP addresses 108.162.192.101, 172.64.32.101 and 173.245.58.101, plus 3 other.

phil.ns.cloudflare.com has IP addresses 108.162.193.137, 172.64.33.137 and 173.245.59.137, plus 3 other.

Mail Servers

stackup.engineer uses two mail servers, in1-smtp.messagingengine.com and in2-smtp.messagingengine.com.

The mail server setup of stackup.engineer matches that of other domains such as rallymotoshop.com, atlantictm.xyz, johnfriedmanflowers.com and two others.

Hosts with 8 IP addresses each:

in1-smtp.messagingengine.com has IP addresses 103.168.172.216, 103.168.172.217 and 103.168.172.218, plus 5 other.

Host names with four IP addresses:

in2-smtp.messagingengine.com resolves to four IP addresses — 202.12.124.216, 202.12.124.217, 202.12.124.218 and 202.12.124.219.