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Best Buy vs Chronicling America

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

APIBest BuyNEW—Chronicling AmericaNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
AuthapiKeynone
CORSnono
HTTPSyesyes
Card requirednono
Commercial useunclearyes
Data licenseUnverifiedPublic domain / no known copyright (Library of Congress)
Free tierFree tier — API key requiredFree — public-domain collection data
Rate limitUnpublishedLoC throttles heavy crawling (see LoC API policy)
In directory since2026-07-052026-07-05
operationalpartialdownno data

Best Buy vs Chronicling America: common questions

Which is more reliable, Best Buy or Chronicling America?

On our scheduled checks, Chronicling America leads on measured uptime — Best Buy at —% versus Chronicling America at —% over 90 days. These are our own probe results, not provider claims; the uptime bars above show the day-by-day record for both.

Do Best Buy and Chronicling America need an API key?

Chronicling America needs no key, while Best Buy requires a free API key. If you want to start calling without signup, reach for Chronicling America first.

Can I call Best Buy and Chronicling America from the browser?

Neither sends browser-friendly CORS headers reliably, so call Best Buy and Chronicling America from a server or proxy rather than client-side. The CORS and HTTPS rows above show exactly what we detected for each.

Are Best Buy and Chronicling America free for commercial use?

Best Buy has unclear commercial terms, and Chronicling America allows commercial use on its free tier. 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.