A live heatmap of when r/webdev's top 100 posts of the past year were submitted. The brightest cells are the windows when this community engages most.
Analyze a different subredditr/webdev has consistent global activity, with the strongest window during US business hours (14:00-22:00 UTC) when the largest cohort of working developers is most active. Tuesday-Thursday posts typically outperform Monday or Friday submissions. Late-evening US posts (after 02:00 UTC) often get a second wind from European morning traffic — this can be a useful angle for posts you want to keep alive longer.
Times above are UTC — the heatmap reflects the trailing 12 months of top posts, so it captures long-term patterns rather than this week's activity. Have questions about how this works? See the main tool page for FAQs.
Knowing when to post is the easy part. ReplyMine surfaces the threads in r/webdev(and the rest of Reddit) where someone is actively asking for what you sell.
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