# spring-attic/sagan

The spring.io site and reference application

Repository: https://github.com/spring-attic/sagan
Canonical: https://ross.abutalabs.com/products/sagan
Homepage: http://spring.io
Language: HTML
License: BSD-3-Clause
License Family: permissive
Archived: true
Last push: 2023-04-19T18:55:33+00:00

## Health v2 (maintenance only)
Score: 10/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 0, release rhythm 35, longevity 100
- inputs: {"age_days": 4865, "days_push": 1232, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_releases, archived
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 3093, forks 1470 (observed 2026-08-28T04:07:42.427789+00:00)

## What it is
Sagan is the Spring team's own web application that powered the spring.io website, including its blog and guides, built with Spring Boot as a real-world reference application. The repository is now archived and no longer used in production, but remains available as a learning resource for seeing how the Spring team built a production app.

## Use cases
- study how the Spring team builds real-world Spring Boot applications
- learn best practices for a production Spring web application
- see how a content-driven site with blog and guides is implemented in Spring
- find example code for Spring MVC, security, and data access patterns
- self-host a Spring-based content website as a starting point

## When to choose
- you want a comprehensive, real-world Spring Boot reference codebase to learn from
- you are building a content-driven website (blog, guides, docs) with Spring
- you want to see idiomatic usage of Spring MVC, Spring Security, and Spring Data together

## When to avoid
- you need a maintained, production-ready CMS or website platform - the project is archived
- you want a minimal starter template - it is a large full application, not a boilerplate
- you need the current spring.io site features - production no longer uses this code

## Facets
- artifact type: application
- maturity: abandoned
- function: web-framework, http-server, templating, ssr
- domain: web-development, backend, developer-tools, documentation
- platform: jvm, self-hosted
- tags: spring-boot, reference-application, content-site, archived, blog, guides, web-server

## Member repositories
- spring-attic/sagan (main) score 10

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:07:42.427789+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 2026-08-30T07:27:19.935373+00:00, confidence not recorded.
  - readme: https://github.com/spring-attic/sagan (fetched 2026-08-28T04:07:42.427789+00:00, sha 6f840a756cc2)
  - homepage: http://spring.io (fetched 2026-08-29T09:42:34.142935+00:00, sha 2b10ed88378d)
  - site_page: https://spring.io/quickstart (fetched 2026-08-29T09:42:34.147334+00:00, sha fc64dd950363)
  - site_page: https://enterprise.spring.io (fetched 2026-08-29T09:42:34.145491+00:00, sha 85ac7d6d5114)
  - site_page: https://enterprise.spring.io/lts-releases (fetched 2026-08-29T09:42:34.149021+00:00, sha 3251cc8760b6)
  - site_page: https://spring.io/microservices (fetched 2026-08-29T09:42:34.150668+00:00, sha 0523a06fe77e)
- Data as of 2026-08-30T08:39:29.467469+00:00.