USE CASE:
YouTube creators and the cost of newsletter detection
Read this if you need newsletter detection for YouTube creators and you would rather see the real options than a pitch. Mamba Labs writes Apify actors for work like this, and Link in Bio Newsletter Checker is the one that reads YouTube creators.
Last updated October 6, 2026
The problem
YouTube creators skew newsletter detection, for a reason specific to them. YouTube creators build audiences through search, so a video from three years ago can still bring in viewers every day, and newsletter detection inherits that. On YouTube creators, newsletter detection rarely catches this: subscriber counts are historical while views are current, and deals get priced on the wrong one. There is 1 runnable example of newsletter detection for YouTube creators below.
Traditional Search Tools
- The channel's recent uploads, for YouTube creators. Free, and average views on the last ten videos are the number to price on.
- Substack and beehiiv discovery pages. Each platform lists its own writers by category. Free, and blind to every creator on a different platform or a self hosted list.
- SparkLoop and newsletter ad networks. They know the newsletters in their own network, with audience sizes. The network is the boundary, and most creators are outside it.
- Asking the creator. The answer is accurate and the list size is often generous. It takes a conversation per creator, which is exactly what a list was meant to avoid.
- Click through every link page. Open the link in bio for each creator and look for a signup form or a link to Substack, beehiiv or Kit. Note the platform. Two to four minutes a creator, longer when the link page needs a browser to load.
Mamba Labs Apify Actors
These are the actors we built for this job. If yours is not covered here, search from the bar at the top of the page or contact us here and tell us what you need.
- Link in Bio Newsletter Checker1 preconfigured task on this page's job.
Preconfigured tasks
A task is one of these actors with the inputs already filled in for a specific version of this job. Open one, swap in your own list, and run it without setting anything up from scratch.