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Nationalize.io vs TotalShiftLeft Sandbox

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

APINationalize.ioHEALTHY95TotalShiftLeft SandboxHEALTHY93
Uptime · 30d
Uptime · 90d98.9%98.9%
Uptime · 30d100%98.3%
P50 · ms209468
P95 · ms9851171
Authnonenone
CORSyesno
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierKeyless usage limited (x-rate-limit-limit: 25 observed); 2,500 names/mo with a free keyFree — open sandbox, auth optional
Rate limitKeyless cap 25 per x-rate-limit-limit header; remaining/reset exposed in response headers100 req/window · 99 remaining · resets 60
In directory since2026-07-052026-07-05
operationalpartialdownno data

Nationalize.io vs TotalShiftLeft Sandbox: common questions

Which is more reliable, Nationalize.io or TotalShiftLeft Sandbox?

Both are neck-and-neck — Nationalize.io and TotalShiftLeft Sandbox each measure 98.9% 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, Nationalize.io or TotalShiftLeft Sandbox?

Nationalize.io has the lower median latency in our checks — Nationalize.io responds in 209 ms versus TotalShiftLeft Sandbox at 468 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 Nationalize.io and TotalShiftLeft Sandbox need an API key?

Neither needs a paid key — Nationalize.io is callable with no signup, and TotalShiftLeft Sandbox is callable with no signup. Both are quick to prototype with; rate limits still apply.

Can I call Nationalize.io and TotalShiftLeft Sandbox from the browser?

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

Are Nationalize.io and TotalShiftLeft Sandbox free for commercial use?

Nationalize.io has unclear commercial terms, and TotalShiftLeft Sandbox 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.