html.profile.substack.com - robtex.com

html.profile.substack.com

DNSSEC⚠️ Not signed
A2606:4700:4400::ac40:9638🇺🇸 Cloudflare2606:4700:4400::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:440b::6812:25c8🇺🇸 Cloudflare2606:4700:440b::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.18.37.200Cloudflare104.18.37.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.64.150.56🇺🇸 Cloudflare172.64.150.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4104.18.37.200, 172.64.150.56
IPv62606:4700:4400::ac40:9638, 2606:4700:440b::6812:25c8

profile.substack.com

DNSSEC⚠️ Not signed
A2606:4700:4400::ac40:9638🇺🇸 Cloudflare2606:4700:4400::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:440b::6812:25c8🇺🇸 Cloudflare2606:4700:440b::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.18.37.200Cloudflare104.18.37.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.64.150.56🇺🇸 Cloudflare172.64.150.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4104.18.37.200, 172.64.150.56
IPv62606:4700:4400::ac40:9638, 2606:4700:440b::6812:25c8

Subdomains

466753995.html.profile.substack.com

Same first word

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DNS History

4 records (4 active, 0 former)

A104.18.37.200172.64.150.562606:4700:4400::ac40:96382606:4700:440b::6812:25c8
●A104.18.37.2002026-02-25 → 2026-03-29 · 2 obs
● 2026-02-25 04:40:28
● 2026-03-29 21:26:08
●A172.64.150.562026-02-25 → 2026-03-29 · 2 obs
● 2026-02-25 04:40:28
● 2026-03-29 21:26:08
●A2606:4700:4400::ac40:96382026-02-25 → 2026-03-29 · 2 obs
● 2026-02-25 04:40:28
● 2026-03-29 21:26:08
●A2606:4700:440b::6812:25c82026-02-25 → 2026-03-29 · 2 obs
● 2026-02-25 04:40:28
● 2026-03-29 21:26:08

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
comb.gtld-servers.net, a.gtld-servers.net, k.gtld-servers.net, h.gtld-servers.net...-
substack.comlee.ns.cloudflare.com, ali.ns.cloudflare.com12 records

✅ Authoritative Response

Server:108.162.193.129

NS records: lee.ns.cloudflare.com, ali.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for substack.com (unsigned zone)

⏱️ Timing

Total: 321ms | Queries: -

📄 Records

TypeCountSample Data
A2104.18.37.200, 172.64.150.56
AAAA22606:4700:4400::ac40:9638, 2606:4700:440b::6812:25c8
HTTPS1{"priority":1,"target":".","alpn":["h3",

📌 Glue Records Collected

Total: 12

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

Analysis

Hierarchy

The parent of 466753995.html.profile.substack.com is html.profile.substack.com.

IP Addresses

html.profile.substack.com maps to four IP numbers: 2606:4700:4400::ac40:9638, 2606:4700:440b::6812:25c8, 104.18.37.200 and 172.64.150.56.

Other host names, for instance insighter050.substack.com, ehstelemetry.lbl.gov.cdn.cloudflare.net, cpufun.substack.com, anecdoche.substack.com and exportimportin.substack.com share IP numbers with html.profile.substack.com.