JobDataLake vs Namedays Calendar

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

Uptime · 30d
Uptime · 90d100%91.2%
Uptime · 30d100%85.0%
P50 · ms336480
P95 · ms14192749
AuthapiKeynone
CORSyesno
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree tier — key may be requiredFree — limits not published
Rate limitUnpublished60 req/window · 58 remaining
In directory since2026-07-052026-07-05
operationalpartialdownno data

JobDataLake vs Namedays Calendar: common questions

Which is more reliable, JobDataLake or Namedays Calendar?

On our scheduled checks, JobDataLake leads on measured uptime — JobDataLake at 100% versus Namedays Calendar at 91.2% 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, JobDataLake or Namedays Calendar?

JobDataLake has the lower median latency in our checks — JobDataLake responds in 336 ms versus Namedays Calendar at 480 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 JobDataLake and Namedays Calendar need an API key?

Namedays Calendar needs no key, while JobDataLake requires a free API key. If you want to start calling without signup, reach for Namedays Calendar first.

Can I call JobDataLake and Namedays Calendar from the browser?

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

Are JobDataLake and Namedays Calendar free for commercial use?

JobDataLake has unclear commercial terms, and Namedays Calendar 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.