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Shields vs Yelp

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

APIShieldsHEALTHY100YelpHEALTHY96
Uptime · 30d
Uptime · 90d100%100%
Uptime · 30d100%100%
P50 · ms30319
P95 · ms9252145
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

Shields vs Yelp: common questions

Which is more reliable, Shields or Yelp?

Both are neck-and-neck — Shields and Yelp each measure 100% 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, Shields or Yelp?

Shields has the lower median latency in our checks — Shields responds in 30 ms versus Yelp at 319 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 Shields and Yelp need an API key?

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

Can I call Shields and Yelp from the browser?

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

Are Shields and Yelp free for commercial use?

Shields has unclear commercial terms, and Yelp 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.