99Ways Academy — PostHog & CRO Guides
Sharing our optimization experiences, won or failed
PostHog Experiments: Default Minimum Detectable Effect (MDE)
One of the useful PostHog experiment updates from May 21, 2026 is the new organization-level default minimum detectable effect, or MDE. For the…
PostHog Pinterest Ads Integration: Conversion Tracking
If you are already using PostHog to track your funnel, you probably have the conversion events Pinterest needs: product views, searches, add-to-cart events,…
Hyros Tracking Maintenance Checklist
This handbook was originally created as a private operating reference for our clients after completing their Hyros implementation. We decided to publish it…
URL Parameters to Set for Your Ads
Use one documented UTM contract across channels, and do not copy platform macros until you have verified them in the exact ad field…
PostHog Session Replay: How to Use It Properly
Use PostHog Session Replay to answer a defined behavior question, not to accumulate recordings. Set capture boundaries before recording, protect sensitive data, sample…
PostHog Session-Based Funnels: Identify Drop-Offs
If you’ve been using PostHog session-based funnels, there’s a small but meaningful update that changes how you investigate drop-offs. I can now click…
PostHog Error Tracking Alerts
I recently tested PostHog’s updated Error Tracking alerting. One improvement stood out immediately: I can now send alerts directly to Slack or Discord…
PostHog TikTok Ads Integration: Conversion Tracking
This guide focuses on integrating PostHog with TikTok Ads so you can send conversion events from PostHog directly into TikTok’s advertising ecosystem. If…
Metric Breakdowns in PostHog Test Results
Metric breakdowns can show whether an experiment’s observed effect differs across event-property values, but a positive subgroup is not automatically the source of…
