stack4.io - robtex.com

stack4.io

DNSSEC⚠️ Not signed
A2606:4700:3031::6815:554🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3037::ac43:8536🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.5.84Cloudflare104.21.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.133.54🇺🇸 Cloudflare172.67.128.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSsierra.ns.cloudflare.com ⭐
A2606:4700:50::a29f:26f5🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRsierra.ns.cloudflare.com
A2803:f800:50::6ca2:c2f5🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRsierra.ns.cloudflare.com
A2a06:98c1:50::ac40:22f5🇺🇸 Cloudflare2a06:98c1:50::/45
PTRsierra.ns.cloudflare.com
A108.162.194.245🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRsierra.ns.cloudflare.com
A162.159.38.245Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRsierra.ns.cloudflare.com
A172.64.34.245🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRsierra.ns.cloudflare.com
NStom.ns.cloudflare.com
A2606:4700:58::adf5:3b93🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRtom.ns.cloudflare.com
A2803:f800:50::6ca2:c193🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRtom.ns.cloudflare.com
A2a06:98c1:50::ac40:2193🇺🇸 Cloudflare2a06:98c1:50::/45
PTRtom.ns.cloudflare.com
A108.162.193.147🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRtom.ns.cloudflare.com
A172.64.33.147🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRtom.ns.cloudflare.com
A173.245.59.147🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRtom.ns.cloudflare.com
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.5.84, 172.67.133.54
IPv6 hints2606:4700:3031::6815:554, 2606:4700:3037::ac43:8536
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=2, name=cloudflare-ech.com
SOAsierra.ns.cloudflare.comdns@cloudflare.com serial=2411304976

io

DNSSEC🔒 Signed (DS record present)
NSa0.nic.io ⭐
NSa2.nic.io
NSb0.nic.io
NSc0.nic.io
SOAa0.nic.iohostmaster@donuts.email serial=1786025330

Same first word

stack4.health
stack4.com
stack4.net
stack4.io

Similar names

cast4k.com
4stack.com

DNS History

10 records (6 active, 4 former)

NSsierra.ns.cloudflare.comtom.ns.cloudflare.comA104.21.5.84172.67.133.542606:4700:3031::6815:5542606:4700:3037::ac43:8536188.114.96.0188.114.97.02a06:98c1:3120::2a06:98c1:3121::
●NSsierra.ns.cloudflare.com2026-07-11 → 2026-08-06 · 2 obs
● 2026-07-11 03:57:32
● 2026-08-06 14:19:16
●NStom.ns.cloudflare.com2026-07-11 → 2026-08-06 · 2 obs
● 2026-07-11 03:57:32
● 2026-08-06 14:19:16
●A104.21.5.842026-08-06 → 2026-08-06 · 2 obs
○ 2026-07-11 03:57:32
● 2026-08-06 14:19:16
●A172.67.133.542026-08-06 → 2026-08-06 · 2 obs
○ 2026-07-11 03:57:32
● 2026-08-06 14:19:16
○A188.114.96.02026-07-11 → 2026-07-11 · 2 obs
● 2026-07-11 03:57:32
○ 2026-08-06 14:19:16
○A188.114.97.02026-07-11 → 2026-07-11 · 2 obs
● 2026-07-11 03:57:32
○ 2026-08-06 14:19:16
●A2606:4700:3031::6815:5542026-08-06 → 2026-08-06 · 2 obs
○ 2026-07-11 03:57:32
● 2026-08-06 14:19:16
●A2606:4700:3037::ac43:85362026-08-06 → 2026-08-06 · 2 obs
○ 2026-07-11 03:57:32
● 2026-08-06 14:19:16
○A2a06:98c1:3120::2026-07-11 → 2026-07-11 · 2 obs
● 2026-07-11 03:57:32
○ 2026-08-06 14:19:16
○A2a06:98c1:3121::2026-07-11 → 2026-07-11 · 2 obs
● 2026-07-11 03:57:32
○ 2026-08-06 14:19:16

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
ioa0.nic.io, a2.nic.io, b0.nic.io, c0.nic.io-
stack4.iotom.ns.cloudflare.com, sierra.ns.cloudflare.com-

✅ Authoritative Response

Server:162.159.38.245

NS records: tom.ns.cloudflare.com, sierra.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for stack4.io (unsigned zone)

⏱️ Timing

Total: 462ms | Queries: -

📄 Records

TypeCountSample Data
A2104.21.5.84, 172.67.133.54
AAAA22606:4700:3037::ac43:8536, 2606:4700:3031::6815:554
NS2sierra.ns.cloudflare.com, tom.ns.cloudflare.com
HTTPS1{"priority":1,"target":".","alpn":["h3",
SOA1sierra.ns.cloudflare.com dns.cloudflare.

Analysis

IP Addresses

stack4.io has four IP addresses: 104.21.5.84, 172.67.133.54, 2606:4700:3031::6815:554 and 2606:4700:3037::ac43:8536.

Two other host names, along with factoryxmuaythai.com, 8xbe237.app and aacawny.com, also share IP numbers with stack4.io.

Name Servers

DNS delegation for stack4.io points to two name servers: sierra.ns.cloudflare.com and tom.ns.cloudflare.com.

stack4.io shares its NS records with other domains, for example organizedsolutions.biz, sc88bet.co, bricsonline.net and two others.

stack4.io shares at least some of its name servers with other domains, including 591667.com, nbet.mobile, tropeziapalacecasinofr.com and two others.

These name servers are frequently paired with the name servers kia.ns.cloudflare.com and aiden.ns.cloudflare.com.

DNS names with 6 IP addresses:

sierra.ns.cloudflare.com has IP addresses 108.162.194.245, 162.159.38.245 and 172.64.34.245, plus 3 other.

tom.ns.cloudflare.com has IP addresses 108.162.193.147, 172.64.33.147 and 173.245.59.147, plus 3 other.