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Data.gov vs Open Government, UK

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

APIData.govHEALTHY79Open Government, UKHEALTHY60
Uptime · 30d
Uptime · 90d100%100%
Uptime · 30d100%100%
P50 · ms9311686
P95 · ms20353087
Authnonenone
CORSnoyes
HTTPSyesyes
Card requirednono
Commercial useunclearyes
Data licenseUnverifiedOpen Government Licence v3.0 (varies per dataset)
Free tierFree — limits not publishedFree — limits not published
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

Data.gov vs Open Government, UK: common questions

Which is more reliable, Data.gov or Open Government, UK?

Both are neck-and-neck — Data.gov and Open Government, UK 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, Data.gov or Open Government, UK?

Data.gov has the lower median latency in our checks — Data.gov responds in 931 ms versus Open Government, UK at 1686 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 Data.gov and Open Government, UK need an API key?

Neither needs a paid key — Data.gov is callable with no signup, and Open Government, UK is callable with no signup. Both are quick to prototype with; rate limits still apply.

Can I call Data.gov and Open Government, UK from the browser?

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

Are Data.gov and Open Government, UK free for commercial use?

Data.gov has unclear commercial terms, and Open Government, UK 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.