#79
B
Rank #165
PostHog
A full product-analytics suite (events, session replay, feature flags, A/B testing) positioned as an open-source alternative to Mixpanel/Amplitude. Standout trait is bundling analytics, flags, and experimentation into one self-hostable platform.
64.5
/ 100
⚙ Full Stack
Django/Python backend, ClickHouse for event analytics storage, Kafka for event ingestion pipelines, Postgres for app metadata, and Redis for caching/queues — a heavy multi-service stack with a React frontend.
📈 Scaling Analysis
ClickHouse and Kafka give it genuine internet-scale ingestion potential once properly clustered, but the self-hosted single-node deployment path is notoriously complex and fragile — the 'good engineering, hard ops' gap is the defining characteristic versus lighter analytics tools.
🚀 Running on Nexlayer
Requires a large pod set: web, plugin-server, ClickHouse, Kafka, postgres.pod:5432, and redis.pod:6379, all wired via <podName>.pod:<port>; ClickHouse's cluster-mode migrations are known to be finicky on single-node setups and need careful config.