Presto DB - Distributed SQL Query Engine for Big Data (by Facebook)
StatCounter - StatCounter is a simple but powerful real-time web analytics service that helps you track, analyse and understand your visitors so you can make good decisions to become more successful online.
Apache Spark - Apache Spark is an engine for big data processing, with built-in modules for streaming, SQL, machine learning and graph processing.
Histats - Start tracking your visitors in 1 minute!
Google BigQuery - A fully managed data warehouse for large-scale data analytics.
Matomo - Matomo is an open-source web analytics platform