How To Do Automation In Substack

symonkings · Sep 4, 2025

I tried building a Python script to post content on Substack. I spent over 9 hours and used multiple AIs, but I’m still facing the same problem.

The issue is that it can’t post — it seems like Substack knows it’s AI automation and gives an error when posting. I also tried Firefox automation and ChromeDriver, but I’m still running into the same issue. I’ve built many social media automations before, but this is the first time I’ve had this problem.

mr Lotus · Sep 4, 2025

Substack may be using multiple bot detection mechanisms (fingerprinting, action speed, behavior analysis), so both scripts and automated browsers get blocked.
You need to keep valid cookies/sessions instead of starting a new one each time.
It may be blocked by Cloudflare or CAPTCHA that require real user interaction.
User-Agent and HTTP headers, as well as action speed, should mimic real human behavior.
Solutions: use stealth mode, randomize actions, keep long-term sessions, analyze network requests when posting manually, and use proxy/residential IPs to avoid being flagged.

zenkie2080 · Sep 4, 2025

Substack seems to have strong bot detection, so automation can be tricky here.

frankyjo · 2026-11-10T17:01:45+0000

not at all

How To Do Automation In Substack

symonkings

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