nextstack.org - dns.ninja

🛡️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	64.233.180.27^{🇺🇸 Google64.233.180.0/24}
			PTR	`on-in-f27.1e100.net`
			PTR	`pe-in-f27.1e100.net`
MX	`alt1.aspmx.l.google.com`⁽⁵⁾
		A	2800:3f0:4003:c14::1a^{🇨🇱 Google2800:3f0:4003::/48}
		A	192.178.234.27^{🇺🇸 Google192.178.0.0/15}
			PTR	`ncsclj-in-f27.1e100.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	172.253.116.27^{🇺🇸 Google172.253.116.0/24}
			PTR	`dj-in-f27.1e100.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::1b^{🇧🇪 Google2a00:1450:400c::/48}
			PTR	`yubrupd-in-f27.1e100.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=56, 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=1787297644

Subdomains

www.nextstack.org

Same first word

nextstack.dev

nextstack.io

nextstack.ltd

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 → 2026-08-21 · 2 obs

● 2020-02-08 17:10:56
● 2026-08-21 08:25:56

●NStheo.ns.cloudflare.com2020-02-08 → 2026-08-21 · 2 obs

● 2020-02-08 17:10:56
● 2026-08-21 08:25:56

●MXalt1.aspmx.l.google.com2026-08-20 → 2026-08-21 · 3 obs

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

●MXalt2.aspmx.l.google.com2026-08-20 → 2026-08-21 · 3 obs

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

●MXalt3.aspmx.l.google.com2026-08-20 → 2026-08-21 · 3 obs

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

●MXalt4.aspmx.l.google.com2026-08-20 → 2026-08-21 · 3 obs

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

●MXaspmx.l.google.com2026-08-20 → 2026-08-21 · 3 obs

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

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

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

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

○ 2026-08-20 23:34:54
● 2026-08-21 08:25:52
● 2026-08-21 08:25:56

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

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

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

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

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

○ 2026-08-20 23:34:54
● 2026-08-21 08:25:52
● 2026-08-21 08:25:56

○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
○ 2026-08-21 08:25:56

○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
○ 2026-08-21 08:25:56

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

○ 2026-08-20 23:34:54
● 2026-08-21 08:25:52
● 2026-08-21 08:25:56

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

○ 2026-08-20 23:34:54
● 2026-08-21 08:25:52
● 2026-08-21 08:25:56

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

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

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

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

○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
○ 2026-08-21 08:25:56

○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
○ 2026-08-21 08:25:56

🔍 DNS Trace

📋 Delegation Chain

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

✅ Authoritative Response

Server:173.245.59.144

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for nextstack.org (unsigned zone)

⏱️ Timing

Total: 748ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.132.132, 104.21.4.216`
AAAA	2	`2606:4700:3031::ac43:8484, 2606:4700:3034::6815:4d8`
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

nextstack.org serves as the parent of www.nextstack.org.

IP Addresses

nextstack.org resolves to four IP addresses: 104.21.4.216, 172.67.132.132, 2606:4700:3031::ac43:8484 and 2606:4700:3034::6815:4d8.

Among the host names that share IP numbers with nextstack.org are iplm.shop, www.(0x736578)forum.gr, martinezbjj.com and two others.

Name Servers

DNS delegation for nextstack.org points to two name servers: iris.ns.cloudflare.com and theo.ns.cloudflare.com.

nextstack.org has the same name server delegation as a number of other domains, such as mrjamesryan.com, darrenlighting.com, mangga2betgacor2026.site and two more.

nextstack.org has at least partial name server overlap with other domains, such as dag.house, emersonrealestategroup.com, jagoco.com and two others.

These name servers tend to appear together with the name servers gwen.ns.cloudflare.com, galilea.ns.cloudflare.com and pablo.ns.cloudflare.com.

Host names resolving to 6 IP numbers:

iris.ns.cloudflare.com has IP addresses 108.162.192.118, 172.64.32.118 and 173.245.58.118, plus 3 other.

theo.ns.cloudflare.com has IP addresses 108.162.193.144, 172.64.33.144 and 173.245.59.144, plus 3 other.

Mail Servers

nextstack.org is handled by five mail servers: aspmx.l.google.com, alt1.aspmx.l.google.com, alt2.aspmx.l.google.com and two others.

nextstack.org shares at least some of its mail servers with other domains — for example culturegift.co.kr, gethcorp.com, lascallejeras.com and two more.

These mail servers tend to be used in conjunction with alt3.aspmx.l.google.com, alt4.aspmx.l.google.com, aspmx2.googlemail.com and two additional mail servers.

Hosts with two IP numbers each:

aspmx.l.google.com has two IP addresses: 64.233.180.27 and 2607:f8b0:4004:c23::1a.

alt1.aspmx.l.google.com has two IP addresses: 192.178.234.27 and 2800:3f0:4003:c14::1a.

alt2.aspmx.l.google.com has two IP addresses: 172.253.116.27 and 2a00:1450:400b:c02::1b.

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

alt4.aspmx.l.google.com has two IP addresses: 172.253.157.27 and 2a00:1450:400c:c23::1b.