The 12 conversion factors, ranked by how often they actually fail

Across 441 pages, a weak or generic value proposition was flagged on 52% and basic clarity — being able to tell what the page even is — on 45%. Nothing else came close. Meanwhile the items that dominate most optimization backlogs sat at the bottom: form friction 3%, page-speed signals 5%, mobile problems 7%, urgency 11%.

That gap is the whole lesson. A faster page that still fails to say what it does converts a faster nothing. The order below is the order to work in, because fixing a factor that was never broken cannot move your number.

If you want your own page scored on these same twelve factors, landing page audit is free and takes about a minute.

Frequency alone undersells the top of the list. When we separate merely-weak from critical, clarity produced 87 critical findings and value proposition 68 — while call-to-action, urgency, mobile, speed and form friction produced almost none. A slow page is a tax. An unclear page is a wall.

This is why the order matters more than the list. A visitor who cannot tell what you sell never reaches your form, so the form's field count is irrelevant to them. Work top-down: message, then mechanics.

It does not say speed and mobile are unimportant. It says that on the pages we scored, they were rarely the binding constraint — largely because these are well-resourced, well-known pages where the technical basics are usually handled. If your page takes eight seconds on a phone, that is your problem and no headline will save it.

It also is not a random sample of the web. It is a large curated set of public pages across many industries, scored on one consistent rubric. Read the individual teardowns if you want to check any of it — the page-by-page analysis behind every number is public.