stack.co.com - dns.ninja

🛡️Domain Reputation CheckBlocklist, phishing & malware status→

`stack.co.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3032::6815:4b6d^{🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3037::ac43:ddc8^{🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.75.109^{Cloudflare104.21.64.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.221.200^{🇺🇸 Cloudflare172.67.208.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`becky.ns.cloudflare.com` ⭐
		A	2606:4700:50::adf5:3a49^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`becky.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c049^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`becky.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2049^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`becky.ns.cloudflare.com`
		A	108.162.192.73^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`becky.ns.cloudflare.com`
		A	172.64.32.73^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`becky.ns.cloudflare.com`
		A	173.245.58.73^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`becky.ns.cloudflare.com`
NS	`buck.ns.cloudflare.com`
		A	2606:4700:58::adf5:3b4e^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`buck.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c14e^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`buck.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:214e^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`buck.ns.cloudflare.com`
		A	108.162.193.78^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`buck.ns.cloudflare.com`
		A	172.64.33.78^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`buck.ns.cloudflare.com`
		A	173.245.59.78^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`buck.ns.cloudflare.com`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.75.109, 172.67.221.200
		IPv6 hints	2606:4700:3032::6815:4b6d, 2606:4700:3037::ac43:ddc8
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=255, name=cloudflare-ech.com
SOA	`becky.ns.cloudflare.com`dns@cloudflare.com serial=2417613301

`co.com`

	DNSSEC	⚠️ Not signed
	A	169.60.151.232^{🇺🇸 SOFTLAYER169.60.128.0/18 -dal13}
	NS	`ns0.nic.co.com` ⭐
	NS	`ns1.nic.co.com`
	NS	`ns2.nic.co.com`
	NS	`ns3.nic.co.com`
	NS	`ns4.nic.co.com`
	MX	`mx.spamexperts.com` ⭐
	MX	`fallbackmx.spamexperts.eu`⁽²⁰⁾
	MX	`lastmx.spamexperts.net`⁽³⁰⁾
	TXT	`google-site-verification=7OcubotXUUSYYCSil8JjPJ_2uxorUHKIpmbUGsV_caA`
	TXT	`v=spf1 mx ip4:169.60.151.232 ip4:184.172.61.109 ip4:169.60.163.139 ip4:169.60...`
	SOA	`ns0.nic.co.com`hostmaster@co.com serial=2014428058

rank #586 globally
rank #344 in the tld

co.com

Co.com is a domain platform that offers.comdomain owners with second-level names ending in "co" the ability to promote a shorter branded web address, and it is also known as a premium/generic domain marketed for businesses seeking a short, brandable ".co"-style name while keeping the trusted.comTLD.

Key facts

Owner / operator: Neustar (historically); domain has changed hands among registry/marketing operators over time — current operator unknown with certainty
TLD:.com— gTLD
Primary purpose: branded short-domain / business identity marketing (positioned as an alternative to.coccTLD names)
Status: active

Related domains

.co— the Colombian ccTLD that is marketed globally as a generic "company/corporation" alias, conceptually related to the co.com branding proposition

⚠️ On DNS blocklist: spam-tlds
📈 Tranco rank: #2,488

Same first word

stack.bm

stack.cl

stack.ng

stack.engineer

stack.autos

stack.money

stack.online

stack.com

stack.ninja

stack.gripe

stack.net.ng

stack.net.br

stack.delivery

stack.compare

stack.blog

stack.digital

stack.trade

stack.tm

stack.vision

stack.win

stack.enterprises

stack.ad

stack.hu

stack.services

stack.onl

stack.ac.cn

stack.com.cn

stack.world

stack.pics

stack.net.au

stack.vet

stack.markets

stack.cam

stack.za.com

stack.webhop.me

stack.consulting

stack.pizza

stack.homes

stack.ca

stack.nyc

stack.rich

stack.nu

stack.pt

stack.ro

stack.restaurant

stack.com.ph

stack.faith

stack.box

stack.cc

stack.finance

stack.synology.me

stack.com.tw

stack.systems

stack.host

stack.guru

stack.com.do

stack.fast

stack.co.com

stack.casino

stack.kim

stack.fo

stack.bio

stack.cafe

stack.re

stack.xyz

stack.science

stack.fan

stack.co.nz

stack.ind.in

stack.ar

stack.et

stack.trading

stack.health

stack.glass

stack.bond

stack.space

stack.careers

stack.guide

stack.io

stack.aero

stack.monster

stack.codes

stack.report

stack.training

stack.build

stack.kiwi

stack.exchange

stack.bet

stack.rentals

stack.tools

stack.creditcard

stack.net.ph

stack.network

stack.financial

stack.ai

stack.you

stack.sx

stack.holdings

stack.tec.br

stack.pink

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stack.design

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Previous names

Next names

DNS History

6 records (6 active, 0 former)

●NSbecky.ns.cloudflare.com2026-10-13 → 2026-10-16 · 2 obs

● 2026-10-13 13:13:22
● 2026-10-16 09:11:08

●NSbuck.ns.cloudflare.com2026-10-13 → 2026-10-16 · 2 obs

● 2026-10-13 13:13:22
● 2026-10-16 09:11:08

●A104.21.75.1092026-10-16 → 2026-10-16 · 2 obs

● 2026-10-16 09:11:06
● 2026-10-16 09:11:08

●A172.67.221.2002026-10-16 → 2026-10-16 · 2 obs

● 2026-10-16 09:11:06
● 2026-10-16 09:11:08

●A2606:4700:3032::6815:4b6d2026-10-16 → 2026-10-16 · 2 obs

● 2026-10-16 09:11:06
● 2026-10-16 09:11:08

●A2606:4700:3037::ac43:ddc82026-10-16 → 2026-10-16 · 2 obs

● 2026-10-16 09:11:06
● 2026-10-16 09:11:08

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	l.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net...	-
co.com	ns1.nic.co.com, ns2.nic.co.com, ns3.nic.co.com, ns4.nic.co.com	8 records
stack.co.com	becky.ns.cloudflare.com, buck.ns.cloudflare.com	-

✅ Authoritative Response

Server:173.245.59.78

NS records: becky.ns.cloudflare.com, buck.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for stack.co.com (unsigned zone)

⏱️ Timing

Total: 1744ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.221.200, 104.21.75.109`
AAAA	2	`2606:4700:3037::ac43:ddc8, 2606:4700:3032::6815:4b6d`
NS	2	`becky.ns.cloudflare.com, buck.ns.cloudflare.com`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`becky.ns.cloudflare.com dns.cloudflare.c`

📌 Glue Records Collected

Total: 8

In-bailiwick: 8 (ns1.nic.co.com, ns1.nic.co.com, ns2.nic.co.com...)

Analysis

IP Addresses

stack.co.com has four IP addresses: 104.21.75.109, 172.67.221.200, 2606:4700:3032::6815:4b6d and 2606:4700:3037::ac43:ddc8.

hjgpl.com, gelora88.vip, rosario-12.com.ar plus two other host names have IP numbers in common with stack.co.com.

Name Servers

stack.co.com has two authoritative name servers — becky.ns.cloudflare.com and buck.ns.cloudflare.com.

The name server configuration of stack.co.com is shared with other domains, for instance cars.za.com, thetimes.co.com, unirack.com.vn and two others.

stack.co.com partially shares its NS delegation with several other domains, including ctsesolutions.com, fiva.top, gk611.net and two others.

The name servers conrad.ns.cloudflare.com, trace.ns.cloudflare.com, moura.ns.cloudflare.com and dale.ns.cloudflare.com are often found in use alongside these name servers.

Hosts with 6 IP addresses each:

becky.ns.cloudflare.com points to 108.162.192.73, 172.64.32.73, 173.245.58.73 and 3 other IP addresses.

buck.ns.cloudflare.com points to 108.162.193.78, 172.64.33.78, 173.245.59.78 and 3 other IP addresses.