District of Columbia Open Data vs FastDOL

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

Uptime · 30d
Uptime · 90d100%100%
Uptime · 30d100%100%
P50 · ms852680
P95 · ms19841725
AuthnoneapiKey
CORSyesno
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverified (DC Open Data terms)Unverified
Free tierFree — limits not publishedFree tier — key may be required
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

District of Columbia Open Data vs FastDOL: common questions

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

Both are neck-and-neck — District of Columbia Open Data and FastDOL 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, District of Columbia Open Data or FastDOL?

FastDOL has the lower median latency in our checks — District of Columbia Open Data responds in 852 ms versus FastDOL at 680 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 District of Columbia Open Data and FastDOL need an API key?

District of Columbia Open Data needs no key, while FastDOL requires a free API key. If you want to start calling without signup, reach for District of Columbia Open Data first.

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

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

Are District of Columbia Open Data and FastDOL free for commercial use?

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