is my website worth it? money event, full cost, ROI math

business · 2026-10-13 · 5 min

a website's worth is one subtraction: attributable profit minus total cost, over the same period. everything else is commentary. here's the money event, the full cost, the formula with a worked example, and the measurement setup that makes it honest.

step 1: name the money event

the one action the site exists for: orders, bookings, quote requests, calls that become customers. count completions, not traffic — 10,000 visitors producing nothing is worth nothing. mark it as the key event in analytics (GA4's literal term) so channels report against it. undefined event? start here: what counts as a conversion.

step 2: total the real cost

build amortized (a $3,000 site over 3 years = $1,000/year), hosting + domain, maintenance and content time (your hours have a rate), marketing feeding it (ads, SEO). most ROI claims silently omit two of these — include all four or the percentage is fiction. five-year totals: the total cost of owning a website.

step 3: the formula, worked

ROI = (gain − cost) ÷ cost × 100, using profit/contribution (not revenue) where possible. example: tracked leads yield $3,000 gross profit in a year; site costs total $1,200 → (3000−1200)/1200 = 150%. lead businesses: track qualified enquiries AND close rate (100 form fills × 10% close × $300 profit = $3,000 — each factor measured, none guessed). limits: attribution is imperfect, timing and risk ignored — ROI decides budgets, not destinies.

FAQ

traffic or sales — which do I measure?

sales (or qualified leads). traffic is the weather; the money event is the harvest. report both, decide on the event: is my website working.

no tracking yet — start where?

count completions manually this month (asked-how-found, call logs, order notes) while installing proper tracking. rough-and-honest beats precise-and-absent: what numbers actually matter.