PredictHQ vs Shields
Same instrument, two spec sheets — measured, not claimed.
PredictHQ vs Shields: common questions
Which is more reliable, PredictHQ or Shields?
On our scheduled checks, Shields leads on measured uptime — PredictHQ at —% versus Shields 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 PredictHQ and Shields need an API key?
Shields needs no key, while PredictHQ requires a free API key. If you want to start calling without signup, reach for Shields first.
Can I call PredictHQ and Shields from the browser?
Yes — both PredictHQ and Shields 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 PredictHQ and Shields free for commercial use?
PredictHQ has unclear commercial terms, and Shields 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.