Callook.info vs CIRCL CVE Search
Same instrument, two spec sheets — measured, not claimed.
Callook.info vs CIRCL CVE Search: common questions
Which is more reliable, Callook.info or CIRCL CVE Search?
On our scheduled checks, Callook.info leads on measured uptime — Callook.info at 100% versus CIRCL CVE Search at 98.0% 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, Callook.info or CIRCL CVE Search?
Callook.info has the lower median latency in our checks — Callook.info responds in 437 ms versus CIRCL CVE Search at 698 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 Callook.info and CIRCL CVE Search need an API key?
Callook.info needs no key, while CIRCL CVE Search requires a free API key. If you want to start calling without signup, reach for Callook.info first.
Can I call Callook.info and CIRCL CVE Search from the browser?
Yes — both Callook.info and CIRCL CVE Search send CORS headers over HTTPS, so front-end code can fetch either directly with no backend proxy. That makes them easy to swap in a client-side app while you compare responses.
Are Callook.info and CIRCL CVE Search free for commercial use?
Callook.info has unclear commercial terms, and CIRCL CVE Search 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.