www.isuc.net - robtex.com

www.isuc.net

DNSSEC⚠️ Not signed
A2606:4700:3037::6815:e4a🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3037::ac43:9e2d🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.14.74Cloudflare104.21.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.158.45🇺🇸 Cloudflare172.67.144.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.14.74, 172.67.158.45
IPv6 hints2606:4700:3037::6815:e4a, 2606:4700:3037::ac43:9e2d
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=124, name=cloudflare-ech.com

isuc.net

DNSSEC⚠️ Not signed
A2606:4700:3037::6815:e4a🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3037::ac43:9e2d🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.14.74Cloudflare104.21.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.158.45🇺🇸 Cloudflare172.67.144.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NScourtney.ns.cloudflare.com ⭐
NSkellen.ns.cloudflare.com
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.14.74, 172.67.158.45
IPv6 hints2606:4700:3037::6815:e4a, 2606:4700:3037::ac43:9e2d
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=124, name=cloudflare-ech.com
SOAcourtney.ns.cloudflare.comdns@cloudflare.com serial=2398652960
WOT: SAFE (98/100)
WOT: SAFE (98/100)

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DNS History

13 records (4 active, 9 former)

20162017201820192020202120222023202420252026A104.21.14.74172.67.158.452606:4700:3037::6815:e4a2606:4700:3037::ac43:9e2d188.114.96.0188.114.96.4188.114.97.0188.114.97.42a06:98c1:3120::2a06:98c1:3120::42a06:98c1:3121::2a06:98c1:3121::464.111.125.154
●A104.21.14.742026-04-12 → 2026-04-12 · 3 obs
○ 2026-02-19 23:06:38
● 2026-04-12 22:54:06
● 2026-04-12 22:54:08
●A172.67.158.452026-04-12 → 2026-04-12 · 3 obs
○ 2026-02-19 23:06:38
● 2026-04-12 22:54:06
● 2026-04-12 22:54:08
○A188.114.96.02026-02-19 → 2026-02-19 · 5 obs
○ 2026-02-19 20:13:20
● 2026-02-19 21:21:32
● 2026-02-19 23:06:38
○ 2026-04-12 22:54:06
○ 2026-04-12 22:54:08
○A188.114.96.42026-02-19 → 2026-02-19 · 4 obs
○ 2018-08-19 06:29:54
● 2026-02-19 20:13:20
○ 2026-02-19 21:21:32
○ 2026-04-12 22:54:08
○A188.114.97.02026-02-19 → 2026-02-19 · 5 obs
○ 2026-02-19 20:13:20
● 2026-02-19 21:21:32
● 2026-02-19 23:06:38
○ 2026-04-12 22:54:06
○ 2026-04-12 22:54:08
○A188.114.97.42026-02-19 → 2026-02-19 · 4 obs
○ 2018-08-19 06:29:54
● 2026-02-19 20:13:20
○ 2026-02-19 21:21:32
○ 2026-04-12 22:54:08
●A2606:4700:3037::6815:e4a2026-04-12 → 2026-04-12 · 3 obs
○ 2026-02-19 23:06:38
● 2026-04-12 22:54:06
● 2026-04-12 22:54:08
●A2606:4700:3037::ac43:9e2d2026-04-12 → 2026-04-12 · 3 obs
○ 2026-02-19 23:06:38
● 2026-04-12 22:54:06
● 2026-04-12 22:54:08
○A2a06:98c1:3120::2026-02-19 → 2026-02-19 · 4 obs
○ 2026-02-19 21:21:32
● 2026-02-19 23:06:38
○ 2026-04-12 22:54:06
○ 2026-04-12 22:54:08
○A2a06:98c1:3120::42026-02-19 → 2026-02-19 · 5 obs
○ 2018-08-19 06:29:54
● 2026-02-19 20:13:20
● 2026-02-19 21:21:32
○ 2026-02-19 23:06:38
○ 2026-04-12 22:54:08
○A2a06:98c1:3121::2026-02-19 → 2026-02-19 · 4 obs
○ 2026-02-19 21:21:32
● 2026-02-19 23:06:38
○ 2026-04-12 22:54:06
○ 2026-04-12 22:54:08
○A2a06:98c1:3121::42026-02-19 → 2026-02-19 · 5 obs
○ 2018-08-19 06:29:54
● 2026-02-19 20:13:20
● 2026-02-19 21:21:32
○ 2026-02-19 23:06:38
○ 2026-04-12 22:54:08
○A64.111.125.1542015-08-11 → 2018-08-19 · 4 obs
● 2015-08-11 13:53:36
● 2018-08-19 06:29:54
○ 2026-02-19 20:13:20
○ 2026-04-12 22:54:08

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
neth.gtld-servers.net, g.gtld-servers.net, c.gtld-servers.net, k.gtld-servers.net...-
isuc.netcourtney.ns.cloudflare.com, kellen.ns.cloudflare.com-

✅ Authoritative Response

Server:162.159.38.130

NS records: courtney.ns.cloudflare.com, kellen.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for isuc.net (unsigned zone)

⏱️ Timing

Total: 527ms | Queries: -

📄 Records

TypeCountSample Data
A2172.67.158.45, 104.21.14.74
AAAA22606:4700:3037::ac43:9e2d, 2606:4700:3037::6815:e4a
HTTPS1{"priority":1,"target":".","alpn":["h3",

Analysis

IP Addresses

www.isuc.net maps to four IP numbers: 2606:4700:3037::6815:e4a, 2606:4700:3037::ac43:9e2d, 104.21.14.74 and 172.67.158.45.

Other host names such as unpkg.co, oopdx.com.cdn.cloudflare.net, arc-view.com, erhatdoviz.com and starcomsystems.com share IPs with www.isuc.net.