# go-acme/lego

> ACME client and library written in Go for obtaining and renewing TLS certificates from Let's Encrypt and other ACME CAs. Supports HTTP-01, DNS-01 and TLS-ALPN-01 challenges, 200+ DNS providers, and works both as a CLI and as a library.

- Magnitude: 0.9 out of 10 — Steady
- Stars: 9,911 total · +0 stars measured 2026-10-08, 10:59–11:57 UTC, ≈ 2 by evening
- Star trust: star growth looks organic
- Category: Security · Language: Go · License: MIT · Created: 2015-06-08 · Last push: 2026-10-07
- GitHub: https://github.com/go-acme/lego · Homepage: https://go-acme.github.io/lego/ · Page: https://gitnova.dev/en/r/go-acme/lego

## Useful for

- Set up automatic Let's Encrypt certificate issuance and renewal for a web server
- Issue a wildcard certificate via DNS-01 challenge with a supported DNS provider
- Embed certificate issuance into a Go application using the lego library

## Why it’s here

- Star-counter measurements on 2026-10-08 (UTC), 10:59–11:57: 9911 → 9911 stars (+0). This is the change over that interval.
- Estimated end-of-day forecast: about +1 stars, using observed gains and the previous day.
- GitHub Trending Go today: #5, +4 stars.

## Star trust

Star growth looks organic.

Star-trust labels are heuristics based on the repository’s behavior, not a check of every stargazer.

## Numbers

- Forks: 1,175
- Issues and pull requests: 3,055
- Watchers: 95
- Average over the last week: 2 per day
- Usual pace: 2 per day
- Stars in the last hour (measured): 0
- Latest release: v5.5.2 (2026-09-23)

## Stars per day, last 30 days (oldest → newest, today is partial)

2026-09-09 … 2026-10-08: 2, 1, 1, 1, 0, 0, 2, 3, 5, 2, 2, 0, 5, 4, 0, 3, 2, 1, 0, 1, 5, 2, 2, 1, 2, 3, 2, 0, 6, 0

## Spotted in now

- GitHub Trending Go today: #5, +4 stars

## Similar by description

1. **caddyserver/caddy** — 3.4 · Peaking · DevOps & infrastructure · Go · +41 stars measured 2026-10-08, 00:02–11:48 UTC, ≈ 78 by evening
   Extensible multi-platform web server written in Go with automatic HTTPS by default, HTTP/1.1, HTTP/2 and HTTP/3 support, and configuration via Caddyfile, JSON or API.
   Full card: https://gitnova.dev/en/r/caddyserver/caddy.md

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Magnitude (0–10) measures how fast and how unusually interest in a repository is growing right now. It is not a quality score.
Days are UTC. “So far today” is a fact; “expected by the end of the day” is a forecast.
Summaries and use cases are written by an LLM (DeepSeek V4.1 Flash) from the README and may be inaccurate: verify specific claims (benchmarks, speed, hardware) in the repository itself.
Data as of 2026-10-08 12:00 UTC, updated every 30 minutes.