USE CASE:
Newsletter detection for Twitch streamers, start to finish
Here is how newsletter detection for Twitch streamers actually gets done, what it costs each way, and where each way stops working. The tools we name are Mamba Labs Apify actors, priced per row, and Link in Bio Newsletter Checker is the one pointed at Twitch streamers.
Last updated October 6, 2026
Where this starts
Twitch streamers frustrate newsletter detection, for a reason specific to them. Twitch streamers earn from live viewers, subscriptions and donations, so concurrent viewers matter more than followers, and newsletter detection inherits that. One thing newsletter detection on Twitch streamers rarely accounts for: a follower count accumulated over years says little about who turns up to a live stream today. Link in Bio Newsletter Checker carries 1 ready made setup for newsletter detection on Twitch streamers.
Traditional Search Tools
- TwitchTracker, for Twitch streamers. Free history of average viewers and hours streamed, which is the real audience.
- 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.