# hyperion-cs/dpi-checkers

Checkers to test your internet provider for censorship.

Repository: https://github.com/hyperion-cs/dpi-checkers
Canonical: https://ross.abutalabs.com/products/dpi-checkers
Homepage: https://hyperion-cs.github.io/dpi-checkers/
Language: Go
License: Apache-2.0
License Family: permissive
Topics: censor, checker, dpi, tcp16-20, censorship, cidr, prefix, subnet, whitelist, isp, dpi-ch, dpich, datacenter, network
Last push: 2026-08-23T19:23:43+00:00

## Health v2 (maintenance only)
Score: 85/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 99, release rhythm 99, longevity 30
- inputs: {"age_days": 429, "days_push": 10, "days_rel": 10, "gap_med": 7.5, "n_releases_24m": 13}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1965, forks 90 (observed 2026-08-28T04:05:59.773503+00:00)

## What it is
A collection of checkers (a comprehensive Go-based DPI-CH tool plus browser-based checkers) that detect whether an ISP or datacenter applies deep packet inspection censorship and identify the specific blocking methods used. Focused primarily on Russian censorship techniques like TCP 16-20 blocking and whitelisted subnet analysis.

## Use cases
- detect if my ISP uses DPI censorship
- check if my provider blocks websites via TCP 16-20 method
- identify which censorship methods my internet provider uses
- test whether a datacenter server is subject to DPI restrictions
- find which IPv4 subnets are whitelisted by the censor
- analyze ISP blocking parameters for research

## When to choose
- you need to diagnose censorship or DPI on a Russian ISP or hosting provider
- you want a flexible, configurable general-purpose DPI analysis tool
- you want a browser-based check that runs without installing anything

## When to avoid
- you need to bypass censorship rather than detect it
- you need censorship analysis outside Russia-focused methods
- you require a polished end-user product rather than a research tool

## Facets
- artifact type: cli-tool
- maturity: active
- function: security, networking, developer-tools
- domain: censorship-circumvention, networking, security
- platform: windows, browser, go
- tags: dpi, censorship-detection, isp-analysis, deep-packet-inspection, russia, network-diagnostics, privacy, linux, macos, android

## Member repositories
- hyperion-cs/dpi-checkers (main) score 85

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:05:59.773503+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 2026-08-30T03:05:28.665049+00:00, confidence not recorded.
  - readme: https://github.com/hyperion-cs/dpi-checkers (fetched 2026-08-28T04:05:59.773503+00:00, sha b90ea0f3dd9c)
  - homepage: https://hyperion-cs.github.io/dpi-checkers/ (fetched 2026-08-29T10:45:05.670514+00:00, sha 18c720cbf982)
- Data as of 2026-08-30T08:39:29.467469+00:00.