nightly.link (GitHub Actions artifact -> anonymous URL wrapper)

Free allowance: No quota of its own — it is a public-read proxy over GitHub Actions artifacts, which are themselves uncounted for public repos but capped at 90-day retention.
Verdict: caveatusable, with a named limit or an unprobed read path
Cost: free tier
Identity: institution?placeholder, not evidence; card unknown, phone unknown
Binding limit: noneno named constraint binds
Evidence: reported3 sources; a third party said so
Freshness: stale on 2026-11-05checked 2026-10-21 (inherited); stale on 2026-11-05

Free tier	No quota of its own — it is a public-read proxy over GitHub Actions artifacts, which are themselves uncounted for public repos but capped at 90-day retention. Service is 'provided totally free of charge'. unit unlimited; metered on unstated
Price	none stated
Identity	institution (inferred, not read) not published
Egress	Free. Redirects to productionresultssa*.blob.core.windows.net (Azure Blob, GitHub's artifact store) with a signed URL, so downloads never touch GitHub's HTML front end.
Per-object cap	not stated
Retention	No quota of its own — it is a public-read proxy over GitHub Actions artifacts, which are themselves uncounted for public repos but capped at 90-day retention (90 days)
Interface	rest rest
Tooling	oprypin/nightly.link, 1011 stars, AGPL, self-hostable (Go). URL grammar is deterministic: https://nightly.link/<owner>/<repo>/workflows/<workflow>/<branch>/<artifact>.zip
Composes with	This is the multiplier that makes GitHub Actions artifacts usable at all: it converts 'artifact behind a login' into 'plain CDN URL'. Combined with unlimited public repos and the 90-day max retention it becomes a rolling 90-day hot tier of unlimited size, refreshed by scheduled workflows.
Reliability	Single-maintainer free service — a single point of failure if you depend on the hosted instance. Self-host it for production use. Rate limiting is the real bite, not storage.
Parsed numbers	has-free-tier 1

Evidence 3

date	source	what it proved
2026-10-21	nightly.link/	'Any public repository is accessible by default and visitors don't need to log in'; 'don't share the global API rate limit ... throttling will likely become very bad over time'
2026-10-21	nightly.link/crystal-lang/crystal/workflows/win/master/cryst	probe: curl -L -> 200, 56909948 bytes downloaded anonymously, redirecting to productionresultssa1.blob.core.windows.net
2026-10-21	github.com/oprypin/nightly.link	part of the text of Tooling, above

Unknown values 3

per object cap notes: the field may be stated in a source that was not read
per object cap stated: the field may be stated in a source that was not read
retention notes: the field may be stated in a source that was not read