ns1.isiuser.com - robtex.com

ns1.isiuser.com

DNSSEC⚠️ Not signed
A2606:4700:3032::ac43:bc37🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3035::6815:40f8🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.64.248Cloudflare104.21.64.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.188.55🇺🇸 Cloudflare172.67.176.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.64.248, 172.67.188.55
IPv6 hints2606:4700:3032::ac43:bc37, 2606:4700:3035::6815:40f8

isiuser.com

DNSSEC⚠️ Not signed
A2606:4700:3032::ac43:bc37🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3035::6815:40f8🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.64.248Cloudflare104.21.64.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.188.55🇺🇸 Cloudflare172.67.176.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSbeau.ns.cloudflare.com ⭐
NSerin.ns.cloudflare.com
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.64.248, 172.67.188.55
IPv6 hints2606:4700:3032::ac43:bc37, 2606:4700:3035::6815:40f8
SOAbeau.ns.cloudflare.comdns@cloudflare.com serial=2402180333
WOT: SAFE (60/100)

Previously NS for

isiuser.com

Same first word

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ns1.in-berlin.de
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ns1.es-1.axarnet.cloud
ns1.mk
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ns1.jls-sto1.elastx.net
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ns1.idf.il
ns1.com.br
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ns1.pl
ns1.kapsi.fi
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DNS History

5 records (4 active, 1 former)

20162017201820192020202120222023202420252026A104.21.64.248172.67.188.552606:4700:3032::ac43:bc372606:4700:3035::6815:40f8122.147.148.150
●A104.21.64.2482026-04-09 → 2026-04-24 · 3 obs
○ 2016-05-09 03:09:12
● 2026-04-09 02:34:02
● 2026-04-24 01:13:38
○A122.147.148.1502015-06-05 → 2016-05-09 · 4 obs
● 2015-06-05 19:23:52
● 2016-05-09 03:09:12
○ 2026-04-09 02:34:02
○ 2026-04-24 01:13:38
●A172.67.188.552026-04-09 → 2026-04-24 · 3 obs
○ 2016-05-09 03:09:12
● 2026-04-09 02:34:02
● 2026-04-24 01:13:38
●A2606:4700:3032::ac43:bc372026-04-09 → 2026-04-24 · 3 obs
○ 2016-05-09 03:09:12
● 2026-04-09 02:34:02
● 2026-04-24 01:13:38
●A2606:4700:3035::6815:40f82026-04-09 → 2026-04-24 · 3 obs
○ 2016-05-09 03:09:12
● 2026-04-09 02:34:02
● 2026-04-24 01:13:38

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
comc.gtld-servers.net, b.gtld-servers.net, j.gtld-servers.net, l.gtld-servers.net...-
isiuser.comerin.ns.cloudflare.com, beau.ns.cloudflare.com12 records

✅ Authoritative Response

Server:108.162.192.113

NS records: erin.ns.cloudflare.com, beau.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for isiuser.com (unsigned zone)

⏱️ Timing

Total: 98ms | Queries: -

📄 Records

TypeCountSample Data
A2104.21.64.248, 172.67.188.55
AAAA22606:4700:3032::ac43:bc37, 2606:4700:3035::6815:40f8
HTTPS1{"priority":1,"target":".","alpn":["h3",

📌 Glue Records Collected

Total: 12

Out-of-bailiwick: 12 (erin.ns.cloudflare.com, erin.ns.cloudflare.com, erin.ns.cloudflare.com...)

Analysis

IP Addresses

ns1.isiuser.com resolves to four IPs: 2606:4700:3032::ac43:bc37, 2606:4700:3035::6815:40f8, 104.21.64.248 and 172.67.188.55.

Other host names, for instance xbjpd.com.cdn.cloudflare.net, q-mail.com, mapsrussian.ru, freedomofspeech.ru and manowalter.com.br share IP numbers with ns1.isiuser.com.