---
title: "Blog — cross-posting, platform limits and how it works | Ravenpost"
description: "Reference tables and design notes from Ravenpost: what each network's API allows, and the decisions behind the product."
url: https://ravenpo.st/blog/
---

Blog

# Notes from building a scheduler

Two kinds of post: reference tables the product generates from its own registry, so they cannot go stale, and write-ups of decisions we had to think about.

-   [
    
    1 August 20264 min readReferenceCross-posting
    
    ## Every network’s caption limit, in one table
    
    What each platform actually allows in a caption, how many images or videos it takes, and which limit wins when you post to several at once.
    
    Read](https://ravenpo.st/blog/caption-limits-by-platform/)
-   [
    
    1 August 20265 min readAnalyticsProduct
    
    ## What a “best time to post” can honestly tell you
    
    Most tools answer it with a heatmap of other people’s accounts. Here is what we measure instead, and why ours says “not yet” more often than you would expect.
    
    Read](https://ravenpo.st/blog/best-time-to-post/)

[RSS](https://ravenpo.st/blog/rss.xml) — or see [what shipped recently](https://ravenpo.st/changelog/).