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RubyGems vs Scrapfly

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

APIRubyGemsHEALTHY94ScrapflyHEALTHY79
Uptime · 30d
Uptime · 90d99.02%99.02%
Uptime · 30d98.3%98.3%
P50 · ms3111015
P95 · ms16394809
AuthnoneapiKey
CORSyesno
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree — limits not publishedFree tier — API key required
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

RubyGems vs Scrapfly: common questions

Which is more reliable, RubyGems or Scrapfly?

Both are neck-and-neck — RubyGems and Scrapfly each measure 99.02% uptime over 90 days on our probe schedule. Reliability here is verified from our own scheduled checks; use the 30-day bars above to see which has been steadier lately.

Which is faster, RubyGems or Scrapfly?

RubyGems has the lower median latency in our checks — RubyGems responds in 311 ms versus Scrapfly at 1015 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 RubyGems and Scrapfly need an API key?

RubyGems needs no key, while Scrapfly requires a free API key. If you want to start calling without signup, reach for RubyGems first.

Can I call RubyGems and Scrapfly from the browser?

Only RubyGems is browser-friendly — it returns CORS headers over HTTPS. Scrapfly needs a server-side call or proxy, so factor that into which one fits a front-end project.

Are RubyGems and Scrapfly free for commercial use?

RubyGems has unclear commercial terms, and Scrapfly 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.