FastDOL vs REG-Vault
Same instrument, two spec sheets — measured, not claimed.
FastDOL vs REG-Vault: common questions
Which is more reliable, FastDOL or REG-Vault?
On our scheduled checks, REG-Vault leads on measured uptime — FastDOL at 76.1% versus REG-Vault at 96.1% 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, FastDOL or REG-Vault?
REG-Vault has the lower median latency in our checks — FastDOL responds in 443 ms versus REG-Vault at 186 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 FastDOL and REG-Vault need an API key?
REG-Vault needs no key, while FastDOL requires a free API key. If you want to start calling without signup, reach for REG-Vault first.
Can I call FastDOL and REG-Vault from the browser?
Only REG-Vault 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 FastDOL and REG-Vault free for commercial use?
FastDOL has unclear commercial terms, and REG-Vault 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.