indexo.dev

siliconimist.com

.com crawl

First seen 2026-05-04 · Last seen 2026-05-11 · ok HTTP/1.1 200 5133 ms crawled 2026-05-11

US · 3.231.35.217 · AS14618 Amazon.com, Inc.

Reputation 92/100 no dmarc policy

sector tech type blog

HTML metadata

Title
The Siliconimist | John Cole | Substack
Description
The Siliconimist has candid conversations with semiconductor enthusiasts, about chips, capital, and the geopolitical consequences. We talk to entrepreneurs, investors, technologists and operators that are pushing semiconductors to new heights. Click to read The Siliconimist, by John Cole, a Substack publication. Launched 4 months ago.
Language
en
Canonical
https://www.siliconimist.com/
Feeds

Open Graph

url
https://www.siliconimist.com/
title
The Siliconimist | John Cole | Substack
description
The Siliconimist has candid conversations with semiconductor enthusiasts, about chips, capital, and the geopolitical consequences. We talk to entrepreneurs, investors, technologists and operators that are pushing semiconductors to new heights. Click to read The Siliconimist, by John Cole, a Substack publication. Launched 4 months ago.

Technology

CDN
Cloudflare
CMS
Gatsby
Analytics
  • Cloudflare Insights
Fonts
  • Google Fonts

Third-party hosts loaded (4)

  • substackcdn.com×250
  • fonts.gstatic.com×1
  • js.sentry-cdn.com×1
  • static.cloudflareinsights.com×1

Registration

Registrar
Squarespace Domains LLC
Created
2026-01-15
Expires
2027-01-15 240 days left
Updated
2026-01-15
Name servers
  • ns-cloud-e1.googledomains.com
  • ns-cloud-e2.googledomains.com
  • ns-cloud-e3.googledomains.com
  • ns-cloud-e4.googledomains.com

DNS records live

NS
  • ns-cloud-e1.googledomains.com
  • ns-cloud-e2.googledomains.com
  • ns-cloud-e3.googledomains.com
  • ns-cloud-e4.googledomains.com
MX
  • 1 aspmx.l.google.com
  • 10 alt3.aspmx.l.google.com
  • 10 alt4.aspmx.l.google.com
  • 5 alt1.aspmx.l.google.com
  • 5 alt2.aspmx.l.google.com

Email authentication weak

SPF
not published
DMARC
not published
DKIM
no key found at common selectors

Certificate (current)

E8
from 2026-04-11 to 2026-07-10
Expires in 51 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 65/100 Checked live page: https://www.siliconimist.com/

present
  • strict-transport-security
  • content-security-policy
findings
  • CSP uses wildcard sources
  • missing frame protection
  • missing content type protection
  • missing Referrer Policy
  • missing Permissions Policy
Header values
content-security-policy
frame-ancestors 'self' https://*.substack.com https://substack.com
strict-transport-security
max-age=31536000; includeSubDomains; preload

Links to (2)

Linked from (1)