Shields vs Voidly
Same instrument, two spec sheets — measured, not claimed.
Shields vs Voidly: common questions
Which is more reliable, Shields or Voidly?
On our scheduled checks, Shields leads on measured uptime — Shields at 100% versus Voidly at 86.0% 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 Voidly?
Shields has the lower median latency in our checks — Shields responds in 28 ms versus Voidly at 1865 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 Voidly need an API key?
Neither needs a paid key — Shields is callable with no signup, and Voidly is callable with no signup. Both are quick to prototype with; rate limits still apply.
Can I call Shields and Voidly from the browser?
Yes — both Shields and Voidly 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 Voidly free for commercial use?
Shields has unclear commercial terms, and Voidly 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.