# zhanghanyun/backtrace

三网回程路由测试

Repository: https://github.com/zhanghanyun/backtrace
Canonical: https://ross.abutalabs.com/products/backtrace
Language: Go
License: MIT
License Family: permissive
Last push: 2025-06-10T07:57:47+00:00

## Health v2 (maintenance only)
Score: 34/100 (v2, computed 2026-09-02T17:46:02.011165+00:00)
- activity 26, release rhythm 8, longevity 100
- inputs: {"age_days": 1554, "days_push": 449, "days_rel": 449, "gap_med": null, "n_releases_24m": 1}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1552, forks 169 (observed 2026-08-28T04:05:02.328674+00:00)

## What it is
A Go-based command-line tool that tests return (backhaul) routing paths across China's three major ISPs (China Telecom, China Unicom, China Mobile). It traces network routes from a server back to these carrier networks, commonly used to evaluate VPS line quality.

## Use cases
- test return route quality of my VPS to China Telecom Unicom and Mobile
- trace backhaul routing from a server to Chinese carriers
- check if my server uses CN2 or 163 backbone routes
- diagnose network path from overseas server to mainland China
- run three-network route test on a Linux terminal

## When to choose
- you need to evaluate China-facing VPS or server line quality
- you want a quick one-line install terminal tool for return route tracing
- you specifically need coverage of all three major Chinese ISPs

## When to avoid
- you need general-purpose traceroute or mtr for arbitrary destinations
- you need a GUI network diagnostics tool
- your use case has nothing to do with routes toward Chinese carrier networks

## Facets
- artifact type: cli-tool
- maturity: active
- function: networking, developer-tools, cli
- domain: networking, developer-tools
- platform: cli, cross-platform
- tags: route-tracing, mtr, china-isps, vps-testing, network-diagnostics, return-route, command-line, linux

## Member repositories
- zhanghanyun/backtrace (main) score 34

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:05:02.328674+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 2026-08-30T04:30:14.437974+00:00, confidence not recorded.
  - readme: https://github.com/zhanghanyun/backtrace (fetched 2026-08-28T04:05:02.328674+00:00, sha 145a46a83f91)
- Data as of 2026-08-30T08:39:29.467469+00:00.