DNS Gurus
favicon
Open Cached · just now
UP

HTTP Status

200

Ping

1 ms

Technologies

4

SSL/TLS Certificate

View Full SSL Report
Issued By

C=US, O=Google Trust Services, CN=WE1

Security Score
79 /100

Network & Hosting

View DNS Records
104.18.36.24 • AS13335 • Cloudflare

Technologies Detected

Google Tag Manager

Analytics

Evidence
  • • Google Tag Manager script/preconnect

Cloudflare

CDN

Evidence
  • • CF-Ray header
  • • IP 104.18.36.24 → ASN 13335

Google Trust Services

Certificate Authority

Evidence
  • • Google SSL certificate

Express

Framework

Evidence
  • • X-Powered-By header

Metadata & SEO

Title
Home | Substack
Description
The app for independent voices
Canonical URL
https://substack.com/home
Language
en
Viewport
width=device-width, initial-scale=1, maximum-scale=1, user-scalable=0, viewport-fit=cover

Social Media Cards

OpenGraph

Type
article
Description
The app for independent voices
Title
Home | Substack
Image
https://substackcdn.com/image/fetch/$s_!Xim-!,w_400,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack.com%2Ficons%2Fsubstack%2Ficon.svg
Url
https://substack.com/home
Image:width
400
Image:height
400

Twitter Cards

Description
The app for independent voices
Title
Home | Substack
Image
https://substackcdn.com/image/fetch/$s_!Xim-!,w_400,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack.com%2Ficons%2Fsubstack%2Ficon.svg
Card
summary

Dependencies

📜 Scripts (100)

🎨 Stylesheets (13)

Resource Hints

preconnect

https://substackcdn.com

preload

https://substackcdn.com/bundle/theme/reader2.01179cc6f5400a932546.css

Type: style

Inspected on November 15, 2025 at 02:42 UTC