Shields vs Zenodo
Same instrument, two spec sheets — measured, not claimed.
Shields vs Zenodo: common questions
Which is more reliable, Shields or Zenodo?
On our scheduled checks, Shields leads on measured uptime — Shields at 100% versus Zenodo at 99.02% 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, Shields or Zenodo?
Shields has the lower median latency in our checks — Shields responds in 30 ms versus Zenodo at 1698 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 Zenodo need an API key?
Neither needs a paid key — Shields is callable with no signup, and Zenodo is callable with no signup. Both are quick to prototype with; rate limits still apply.
Can I call Shields and Zenodo from the browser?
Yes — both Shields and Zenodo send CORS headers over HTTPS, so front-end code can fetch either directly with no backend proxy. That makes them easy to swap in a client-side app while you compare responses.
Are Shields and Zenodo free for commercial use?
Shields has unclear commercial terms, and Zenodo 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.