The fastest way to learn custom trackers is to copy what Blitapp’s built-in trackers do. Each one is just a selector plus a JavaScript expression – both small enough to test in your browser before you ever save the tracker. This walkthrough takes you from the simplest built-in tracker (Page Title) to the most involved (Google Search Rank, which uses <input> to thread a target URL through the selector and value expression), with the DevTools steps to validate every example.

If you haven’t created a custom tracker before, the Create Your Own Custom Trackers post covers the form fields. This one is hands-on.

You can now define your own trackers in Blitapp and use them in any capture – no support request needed. Custom trackers are shared with everyone on your team automatically.

We’re upgrading the engine behind Blitapp. Over the coming weeks, we’ll be migrating our screenshot backend from Browshot to ScreenshotCenter – a modern screenshot API built for speed and reliability.

You can now schedule captures to run on the last day of every month – regardless of whether that’s the 28th, 29th, 30th, or 31st.

You can now use date and time variables directly in your capture URLs. This lets you schedule captures of pages where the URL changes every day, hour, or minute – without creating a new capture each time.