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Data.gov vs District of Columbia Open Data

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

APIData.govHEALTHY79District of Columbia Open DataHEALTHY89
Uptime · 30d
Uptime · 90d100%100%
Uptime · 30d100%100%
P50 · ms931852
P95 · ms20351984
Authnonenone
CORSnoyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified (DC Open Data terms)
Free tierFree — limits not publishedFree — limits not published
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

Data.gov vs District of Columbia Open Data: common questions

Which is more reliable, Data.gov or District of Columbia Open Data?

Both are neck-and-neck — Data.gov and District of Columbia Open Data 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 District of Columbia Open Data?

District of Columbia Open Data has the lower median latency in our checks — Data.gov responds in 931 ms versus District of Columbia Open Data at 852 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 District of Columbia Open Data need an API key?

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

Can I call Data.gov and District of Columbia Open Data from the browser?

Only District of Columbia Open Data 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 District of Columbia Open Data free for commercial use?

Data.gov has unclear commercial terms, and District of Columbia Open Data 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.