🛡️Domain Reputation CheckBlocklist, phishing & malware status→

`nextstack.org`

DNSSEC	⚠️ Not signed
A	2606:4700:3031::ac43:8484^{🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3034::6815:4d8^{🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.4.216^{Cloudflare104.21.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.132.132^{🇺🇸 Cloudflare172.67.128.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`iris.ns.cloudflare.com` ⭐
		A	2606:4700:50::adf5:3a76^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`iris.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c076^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`iris.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2076^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`iris.ns.cloudflare.com`
		A	108.162.192.118^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`iris.ns.cloudflare.com`
		A	172.64.32.118^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`iris.ns.cloudflare.com`
		A	173.245.58.118^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`iris.ns.cloudflare.com`
NS	`theo.ns.cloudflare.com`
		A	2606:4700:58::adf5:3b90^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`theo.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c190^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`theo.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2190^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`theo.ns.cloudflare.com`
		A	108.162.193.144^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`theo.ns.cloudflare.com`
		A	172.64.33.144^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`theo.ns.cloudflare.com`
		A	173.245.59.144^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`theo.ns.cloudflare.com`
MX	`aspmx.l.google.com` ⭐
		A	2607:f8b0:4004:c23::1a^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`yuiadrs-in-f26.1e100.net`
		A	142.251.179.27^{🇺🇸 Google142.251.179.0/24}
			PTR	`pd-in-f27.1e100.net`
MX	`alt1.aspmx.l.google.com`⁽⁵⁾
		A	2800:3f0:4003:c14::1b^{🇨🇱 Google2800:3f0:4003::/48}
		A	192.178.234.26^{🇺🇸 Google192.178.0.0/15}
			PTR	`ncsclj-in-f26.1e100.net`
MX	`alt2.aspmx.l.google.com`⁽⁵⁾
		A	2a00:1450:400b:c02::1b^{🇮🇪 Google2a00:1450:400b::/48}
			PTR	`dj-in-f27.1e100.net`
		A	172.253.116.26^{🇺🇸 Google172.253.116.0/24}
			PTR	`dj-in-f26.1e100.net`
MX	`alt3.aspmx.l.google.com`⁽¹⁰⁾
		A	2a00:1450:4009:c0f::1a^{🇬🇧 Google2a00:1450:4009::/48}
			PTR	`yulhrs-in-f26.1e100.net`
		A	192.178.223.26^{🇺🇸 Google192.178.223.0/24}
			PTR	`yulhrs-in-f26.1e100.net`
MX	`alt4.aspmx.l.google.com`⁽¹⁰⁾
		A	2a00:1450:400c:c23::1a^{🇧🇪 Google2a00:1450:400c::/48}
			PTR	`yubrupd-in-f26.1e100.net`
		A	172.253.157.27^{🇺🇸 Google172.253.0.0/16}
			PTR	`yubrupd-in-f27.1e100.net`
TXT	`atlassian-domain-verification=9Vr87FQ6xGzPg/GMqas0DTr7aqH8vM1mA4k4leMDhT2aec2...`
TXT	`facebook-domain-verification=tv3m2jceb7hswnes52dygfz1cnl9fj`
TXT	`google-site-verification=GNrNqn397ZIuz0fNHjO4rA9KyhGxUiBvgCWo-WpsmVA`
TXT	`google-site-verification=Inb--u8Uoe-YXO0HVXFmdI3ABumKl32lr4alazZ5pg8`
TXT	`v=spf1 include:_spf.google.com ~all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.4.216, 172.67.132.132
		IPv6 hints	2606:4700:3031::ac43:8484, 2606:4700:3034::6815:4d8
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=193, name=cloudflare-ech.com
SOA	`iris.ns.cloudflare.com`dns@cloudflare.com serial=2411000531

`org`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a0.org.afilias-nst.info` ⭐ ⚠️ Not in parent delegation
	NS	`a2.org.afilias-nst.info` ⚠️ Not in parent delegation
	NS	`b0.org.afilias-nst.org`
	NS	`b2.org.afilias-nst.org`
	NS	`c0.org.afilias-nst.info` ⚠️ Not in parent delegation
	NS	`d0.org.afilias-nst.org`
	SOA	`a0.org.afilias-nst.info`hostmaster@donuts.email serial=1787626120

Subdomains

www.nextstack.org

Same first word

nextstack.dev

nextstack.io

nextstack.ltd

nextstack.net

nextstack.hk

nextstack.org

nextstack.club

nextstack.netlify.app

nextstack.com.sg

nextstack.com.hk

Similar names

stacknext.in

stacknext.com

Previous names

Next names

DNS History

20 records (11 active, 9 former)

●NSiris.ns.cloudflare.com2020-02-08 → 2026-08-25 · 2 obs

● 2020-02-08 17:10:56
● 2026-08-25 03:08:04

●NStheo.ns.cloudflare.com2020-02-08 → 2026-08-25 · 2 obs

● 2020-02-08 17:10:56
● 2026-08-25 03:08:04

●MXalt1.aspmx.l.google.com2026-08-20 → 2026-08-25 · 3 obs

○ 2020-02-08 17:10:56
● 2026-08-20 23:34:54
● 2026-08-25 03:08:04

●MXalt2.aspmx.l.google.com2026-08-20 → 2026-08-25 · 3 obs

○ 2020-02-08 17:10:56
● 2026-08-20 23:34:54
● 2026-08-25 03:08:04

●MXalt3.aspmx.l.google.com2026-08-20 → 2026-08-25 · 3 obs

○ 2020-02-08 17:10:56
● 2026-08-20 23:34:54
● 2026-08-25 03:08:04

●MXalt4.aspmx.l.google.com2026-08-20 → 2026-08-25 · 3 obs

○ 2020-02-08 17:10:56
● 2026-08-20 23:34:54
● 2026-08-25 03:08:04

●MXaspmx.l.google.com2026-08-20 → 2026-08-25 · 3 obs

○ 2020-02-08 17:10:56
● 2026-08-20 23:34:54
● 2026-08-25 03:08:04

○MXmx.yandex.net2020-02-08 → 2020-02-08 · 3 obs

● 2020-02-08 17:10:56
○ 2026-08-20 23:34:54
○ 2026-08-25 03:08:04

●A104.21.4.2162026-08-21 → 2026-08-25 · 3 obs

○ 2026-08-20 23:34:54
● 2026-08-21 08:25:52
● 2026-08-25 03:08:04

○A104.28.22.722020-02-08 → 2020-02-08 · 3 obs

● 2020-02-08 17:10:56
○ 2026-08-20 23:34:54
○ 2026-08-25 03:08:04

○A104.28.23.722020-02-08 → 2020-02-08 · 3 obs

● 2020-02-08 17:10:56
○ 2026-08-20 23:34:54
○ 2026-08-25 03:08:04

●A172.67.132.1322026-08-21 → 2026-08-25 · 3 obs

○ 2026-08-20 23:34:54
● 2026-08-21 08:25:52
● 2026-08-25 03:08:04

○A188.114.96.02026-08-20 → 2026-08-20 · 4 obs

○ 2020-02-08 17:10:56
● 2026-08-20 23:34:54
○ 2026-08-21 08:25:52
○ 2026-08-25 03:08:04

○A188.114.97.02026-08-20 → 2026-08-20 · 4 obs

○ 2020-02-08 17:10:56
● 2026-08-20 23:34:54
○ 2026-08-21 08:25:52
○ 2026-08-25 03:08:04

●A2606:4700:3031::ac43:84842026-08-21 → 2026-08-25 · 3 obs

○ 2026-08-20 23:34:54
● 2026-08-21 08:25:52
● 2026-08-25 03:08:04

●A2606:4700:3034::6815:4d82026-08-21 → 2026-08-25 · 3 obs

○ 2026-08-20 23:34:54
● 2026-08-21 08:25:52
● 2026-08-25 03:08:04

○A2606:4700:3034::681c:16482020-02-08 → 2020-02-08 · 3 obs

● 2020-02-08 17:10:56
○ 2026-08-20 23:34:54
○ 2026-08-25 03:08:04

○A2606:4700:3035::681c:17482020-02-08 → 2020-02-08 · 3 obs

● 2020-02-08 17:10:56
○ 2026-08-20 23:34:54
○ 2026-08-25 03:08:04

○A2a06:98c1:3120::2026-08-20 → 2026-08-20 · 4 obs

○ 2020-02-08 17:10:56
● 2026-08-20 23:34:54
○ 2026-08-21 08:25:52
○ 2026-08-25 03:08:04

○A2a06:98c1:3121::2026-08-20 → 2026-08-20 · 4 obs

○ 2020-02-08 17:10:56
● 2026-08-20 23:34:54
○ 2026-08-21 08:25:52
○ 2026-08-25 03:08:04

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
org	b2.org.afilias-nst.org, d0.org.afilias-nst.org, b0.org.afilias-nst.org	-
nextstack.org	iris.ns.cloudflare.com, theo.ns.cloudflare.com	-

✅ Authoritative Response

Server:173.245.58.118

NS records: iris.ns.cloudflare.com, theo.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for nextstack.org (unsigned zone)

⏱️ Timing

Total: 1025ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.4.216, 172.67.132.132`
AAAA	2	`2606:4700:3034::6815:4d8, 2606:4700:3031::ac43:8484`
NS	2	`iris.ns.cloudflare.com, theo.ns.cloudflare.com`
MX	5	`aspmx.l.google.com (pri: 1), alt3.aspmx.l.google.com (pri: 10)...`
TXT	5	`atlassian-domain-verification=9Vr87FQ6xG, facebook-domain-verification=tv3m2jceb7h...`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`iris.ns.cloudflare.com dns.cloudflare.co`

Analysis

Hierarchy

www.nextstack.org is delegated beneath nextstack.org.

IP Addresses

nextstack.org directs to four IP numbers, which are 104.21.4.216, 172.67.132.132, 2606:4700:3031::ac43:8484 and 2606:4700:3034::6815:4d8.

Two other host names, along with iplm.shop, www.(0x736578)forum.gr and martinezbjj.com, also share IP numbers with nextstack.org.

Name Servers

nextstack.org is served by two delegated name servers, iris.ns.cloudflare.com and theo.ns.cloudflare.com.

nextstack.org shares its NS records with other domains, for example ruangwd-artisintel.pages.dev, mrjamesryan.com, sportsbettingchat.io and two others.

There is at least partial name server overlap between nextstack.org and other domains — dag.house, emersonrealestategroup.com, ycoffeeneighbor.pages.dev and two more among them.

The name servers gwen.ns.cloudflare.com, pablo.ns.cloudflare.com and galilea.ns.cloudflare.com are often found in combination with these name servers.

DNS names with 6 IP addresses:

iris.ns.cloudflare.com carries IP addresses 108.162.192.118, 172.64.32.118 and 173.245.58.118, with 3 other addresses beyond those.

theo.ns.cloudflare.com carries IP addresses 108.162.193.144, 172.64.33.144 and 173.245.59.144, with 3 other addresses beyond those.

Mail Servers

Five mail servers handle nextstack.org: aspmx.l.google.com, alt1.aspmx.l.google.com, alt2.aspmx.l.google.com and two others.

There is at least a partial MX overlap between nextstack.org and other domains, including culturegift.co.kr, gethcorp.com, lascallejeras.com and two others.

These mail servers frequently co-occur with the mail servers alt3.aspmx.l.google.com, alt4.aspmx.l.google.com, aspmx2.googlemail.com and two others.

Host names that have two IP addresses:

aspmx.l.google.com maps to two IP addresses — 142.251.179.27 and 2607:f8b0:4004:c23::1a.

alt1.aspmx.l.google.com maps to two IP addresses — 192.178.234.26 and 2800:3f0:4003:c14::1b.

alt2.aspmx.l.google.com maps to two IP addresses — 172.253.116.26 and 2a00:1450:400b:c02::1b.

alt3.aspmx.l.google.com maps to two IP addresses — 192.178.223.26 and 2a00:1450:4009:c0f::1a.

alt4.aspmx.l.google.com maps to two IP addresses — 172.253.157.27 and 2a00:1450:400c:c23::1a.

nextstack.org - robtex.com

nextstack.org

org

Subdomains

Same first word

Similar names

Previous names

Next names

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

Analysis

Hierarchy

IP Addresses

Name Servers

Mail Servers

`nextstack.org`

`org`