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GitHub Contribution Chart Generator vs Warnely

Same instrument, two spec sheets — measured, not claimed.

APIGitHub Contribution Chart GeneratorHEALTHY68WarnelyDYING89
Uptime · 30d
Uptime · 90d79.4%90.2%
Uptime · 30d85.0%83.3%
P50 · ms4374334
P95 · ms49921375
Authnonenone
CORSnono
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverified (derived from public GitHub profile data)Unverified
Free tierFree — no keyFree — limits not published
Rate limitUnpublished100 req/window · 99 remaining · resets 60
In directory since2026-07-052026-07-05
operationalpartialdownno data

GitHub Contribution Chart Generator vs Warnely: common questions

Which is more reliable, GitHub Contribution Chart Generator or Warnely?

On our scheduled checks, Warnely leads on measured uptime — GitHub Contribution Chart Generator at 79.4% versus Warnely at 90.2% over 90 days. These are our own probe results, not provider claims; the uptime bars above show the day-by-day record for both.

Which is faster, GitHub Contribution Chart Generator or Warnely?

Warnely has the lower median latency in our checks — GitHub Contribution Chart Generator responds in 4374 ms versus Warnely at 334 ms (P50). Tail latency (P95) is in the table above; for most workloads the median is the number that shapes how the API feels.

Do GitHub Contribution Chart Generator and Warnely need an API key?

Neither needs a paid key — GitHub Contribution Chart Generator is callable with no signup, and Warnely is callable with no signup. Both are quick to prototype with; rate limits still apply.

Can I call GitHub Contribution Chart Generator and Warnely from the browser?

Neither sends browser-friendly CORS headers reliably, so call GitHub Contribution Chart Generator and Warnely from a server or proxy rather than client-side. The CORS and HTTPS rows above show exactly what we detected for each.

Are GitHub Contribution Chart Generator and Warnely free for commercial use?

GitHub Contribution Chart Generator has unclear commercial terms, and Warnely has unclear commercial terms. We track service terms and the data license as separate fields — see the Commercial use and Data license rows above, and confirm both before shipping either in a paid product.