Sixteen checks on the stretch between someone landing on a service page and a brief being agreed. Weighted by how often each one turns out to be the real cause, so the list comes back in the order worth fixing.
Tick what is already true. The score updates as you go. Nothing is sent anywhere and there is no email to enter.
Losing most of them
The traffic is probably not the problem. Fix the bottom of this funnel before spending anything on the top of it.
A self assessment of your own funnel, scored against weights that reflect how often each item is the actual cause of a lost enquiry rather than a theoretical best practice.
Because it is the half nobody audits. Most teams spend on getting more people to the page and never check whether the page, the form and the reply are losing the ones who already arrived. Fixing the bottom is cheaper and the effect is immediate.
Response time. A human reply inside one working hour changes conversion more than any change you can make to the page, and it is the item most often missing. It costs nothing but an owner.
A signal, not a price list. A range, a starting point, or a typical engagement size. Its absence is the most common reason a well qualified buyer leaves without asking, because they assume they cannot afford you or that finding out will be a sales process.
Up to a point. Fewer fields raise completion but can lower quality. The rule that holds is to ask for what you need in order to reply, not what you need in order to quote. The rest belongs in the conversation.
Because a reply that lands in spam is identical to no reply, and you never find out. If SPF, DKIM and DMARC are not aligned, some share of your answers are never read.