# pirsch-analytics/pirsch

Pirsch is a drop-in, server-side, no-cookie, and privacy-focused analytics solution for Go.

Repository: https://github.com/pirsch-analytics/pirsch
Canonical: https://ross.abutalabs.com/products/pirsch
Homepage: https://pirsch.io
Language: Go
License: AGPL-3.0
License Family: copyleft
Topics: tracking, analytics, traffic, go, golang
Last push: 2026-08-20T11:09:00+00:00

## Health v2 (maintenance only)
Score: 97/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 98, release rhythm 94, longevity 100
- inputs: {"age_days": 2265, "days_push": 13, "days_rel": 42, "gap_med": 11.0, "n_releases_24m": 45}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1028, forks 51 (observed 2026-08-28T04:03:17.384331+00:00)

## What it is
Pirsch is the open-source core of a privacy-focused, server-side web analytics solution written in Go. It tracks website traffic without cookies or personal data by hashing visitor fingerprints, storing results in ClickHouse, and is GDPR/CCPA/PECR compliant.

## Use cases
- track website traffic server-side without cookies
- add privacy-friendly analytics to a Go application
- count page views even for visitors using ad blockers
- build a custom analytics dashboard for my site
- replace Google Analytics with a GDPR-compliant alternative
- track custom events and conversion goals
- self-host web analytics in the EU

## When to choose
- you want cookie-free, privacy-compliant analytics integrated directly into a Go backend
- you need server-side tracking that bypasses ad blockers
- you want full data ownership and self-hosting with ClickHouse
- you need an open-source analytics core you can extend with your own dashboard

## When to avoid
- you want a ready-made hosted dashboard without building anything (use the commercial Pirsch SaaS instead)
- your stack is not Go and you prefer a client-side script-based analytics tool
- you need client-side-only tracking with zero backend integration
- you require a permissive license - the core is AGPL-3.0

## Facets
- artifact type: library
- maturity: active
- function: analytics, http-server, middleware, web-framework
- domain: analytics, web-development, privacy, self-hosted
- platform: go, self-hosted
- tags: web-analytics, server-side-tracking, cookie-free, gdpr-compliance, clickhouse, google-analytics-alternative, visitor-fingerprinting, linux, docker, web-server

## Member repositories
- pirsch-analytics/pirsch (main) score 97

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:03:17.384331+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T07:07:48.762076+00:00, confidence not recorded.
  - readme: https://github.com/pirsch-analytics/pirsch (fetched 2026-08-28T04:03:17.384331+00:00, sha 7bc338a50ed6)
  - homepage: https://pirsch.io (fetched 2026-08-29T13:07:55.570345+00:00, sha 469505eb1960)
  - site_page: https://pirsch.io/features (fetched 2026-08-29T13:07:55.579600+00:00, sha 58b6c6014af9)
  - site_page: https://docs.pirsch.io/ (fetched 2026-08-29T13:07:55.581633+00:00, sha 76633ae00120)
  - site_page: https://docs.pirsch.io/changelog (fetched 2026-08-29T13:07:55.585497+00:00, sha 6cd4d934b2c9)
  - site_page: https://pirsch.io/about-us (fetched 2026-08-29T13:07:55.589459+00:00, sha 9437a9872502)
  - site_page: https://pirsch.io/pricing (fetched 2026-08-29T13:07:55.583685+00:00, sha e6e59913e101)
- Data as of 2026-08-30T08:39:29.467469+00:00.