// multi-utility computation suite · offline · instant · precise
┌──────────────────────────┐
│ [c] calcalyst_ │
│ computation suite │
└──────────────────────────┘
// select a module to initialize
/ search↵ open firstesc close
// adsenseEMPTY_LEADER_SLOT728×90
// adsenseMOBILE_ANCHOR_SLOT320×50
// keyboard_shortcuts
/focus search
↑↓navigate module list
Enter
open first result from search
open highlighted
compute when module is open
compute when focused in a field
Escclose module · clear selection
⌫
build.sec-cors-origin Calculator
Estimates the preflight request overhead from a permissive CORS origin allowlist and calculates the latency tax per API call. Every cross-origin request to a non-simple endpoint requires a preflight OPTIONS request — caching with Access-Control-Max-Age is the standard optimisation.
Inputs
Rps
Reference formula or conversion factor shown for context.
Preflight Pct
Reference formula or conversion factor shown for context.
Preflight Ms
Reference formula or conversion factor shown for context.
Cache S
Reference formula or conversion factor shown for context.
Results
preflights/s
Reference formula or conversion factor shown for context.
latency overhead
Time from request initiation to response received. Composed of processing time, network round-trip, and queuing delay.
cached %
CAC (customer acquisition cost) -- total sales and marketing spend divided by new customers acquired. Healthy LTV:CAC ratio is 3:1 or higher.
saved preflights
The total amount saved compared to the baseline scenario — cost savings, time savings, or resource savings.