lychee.toml

# Lychee link checker configuration

exclude = [
  # Domains that return 403 / explicitly reject automated access
  "^https://archive\\.topcoder\\.com/",
  "^https://atcoder-companions\\.kakira\\.dev/",
  "^https://atcoder\\.jp/",
  "^https://beet-aizu\\.hatenablog\\.com/",
  "^https://cards-dev\\.twitter\\.com/",
  "^https://chokudai\\.hatenablog\\.com/",
  "^https://chrome\\.google\\.com/",
  "^https://clist\\.by/",
  "^https://codeforces\\.com/",
  "^https://ctftime\\.org/",
  "^https://drken1215\\.hatenablog\\.com/",
  "^https://dreamhack\\.io/",
  "^https://github\\.com/",
  "^https://hackerrank\\.com/",
  "^https://img\\.shields\\.io/github/stars/",
  "^https://info\\.atcoder\\.jp/",
  "^https://kakuyomu\\.jp/",
  "^https://kenkoooo\\.com/atcoder/",
  "^https://kotlinlang\\.org/",
  "^https://leetcode\\.com/",
  "^https://medium\\.com/",
  "^https://note\\.e-seikatsu\\.info/",
  "^https://oeis\\.org/",
  "^https://openai\\.com/",
  "^https://paiza\\.jp/",
  "^https://play\\.picoctf\\.org/",
  "^https://qiita\\.com/",
  "^https://shindannin\\.hatenadiary\\.com/",
  "^https://shindanmaker\\.com/",
  "^https://solved\\.ac/",
  "^https://speakerdeck\\.com/",
  "^https://taksas\\.net/",
  "^https://twitter\\.com/",
  "^https://vjudge\\.net/",
  "^https://www\\.acmicpc\\.net/",
  "^https://www\\.codechef\\.com/",
  "^https://www\\.creativ\\.xyz/",
  "^https://www\\.estie\\.jp/",
  "^https://www\\.kaggle\\.com/",
  "^https://www\\.topcoder\\.com/",
  "^https://x\\.com/",
  # Local development server
  "^http://localhost",
  # Self-hosted site
  "^https://kato-hiro\\.github\\.io/AtCoderClans/",
  # Local file references: paths are written for MkDocs build output,
  # not source tree — CI root and MkDocs root differ
  "^file:",
]

# Exclude archived pages that intentionally contain broken/dead links
exclude_path = [
  "docs/archived/broken_links\\.md",
  "docs/archived/migrate_servers\\.md",
  "docs/archived/no_longer_available\\.md",
  "docs/archived/outdated_information\\.md",
  "monthly_changelog/**/*.md",
]

# Accept 429 (Rate Limited) in addition to default success codes (100–103, 200–299)
# Default: 100..=103,200..=299
accept = ["100..=103", "200..=299", "429"]

max_concurrency = 8
max_retries = 0
retry_wait_time = 3
cache = true