More traffic is not a business case.

Trace the whole chain

Search volume is several steps away from cash. Someone has to click, become a suitable enquiry, become a customer and buy something with enough contribution to cover acquisition costs.

Missing any step can turn an attractive traffic forecast into a weak commercial plan. A clinic with no appointment capacity and a trades business rejecting jobs outside its coverage area have different constraints from a new firm with an empty pipeline.

Make the arithmetic visible

Take an illustrative increase of 100 visits a month. At a 5% enquiry rate and a 20% lead-to-customer rate, that is one additional customer. At £1,000 first-sale value and 40% gross margin, the additional gross contribution is £400 before search costs.

A £500 monthly search investment would not pay back on that first sale alone. Repeat purchases might change the case, but they need a separate assumption supported by customer data. Calling the full £1,000 “profit” would conceal the problem.

Test the weakest input first

We ask which assumption has the least evidence and the biggest influence on the result. If lead quality is unknown, improving qualification and tracking can be more useful than buying another traffic forecast.

If close rate is the constraint, a clearer service proposition, faster follow-up or a better enquiry form may matter more than a new location page. The website is part of an operating system that includes the people responding to it.

Use a range, with a reason

A low, central and high scenario can expose sensitivity. It should not disguise invented benchmarks. Our estimator varies the assumed change in click share while keeping your other inputs visible; it is a stress test, not a probability model.

Forecasts also need a timeline. A steady monthly run rate is different from a campaign that takes six months to mature. Set a realistic horizon and do not count a full year of peak performance from the first month.

The useful output is a decision

Traffic is an input to the decision. The business case is the chain of outcomes and costs that follows it.

• Proceed if the case remains workable under less optimistic inputs.
• Improve measurement if the result depends on an unknown conversion rate.
• Fix conversion if the existing traffic already has buying intent.
• Pause growth if service capacity would make new demand a poor experience.