Conversion Rate Optimization Checklist: 30 Fixes That Move the Number

A conversion rate optimization checklist is a repeatable set of fixes you run on a landing page to turn more visitors into customers, ordered so you do the high-impact work first. The reliable wins, in rough order, are a clear outcome-first headline, a single obvious call to action, a shorter form, visible proof, a fast load, and a clean mobile layout. You do not need a testing tool to start; most pages have obvious leaks you can fix by inspection before you ever run a split test.

Below is a practical checklist of 30 fixes grouped by area, with the reasoning behind each so you know why it matters and not just that it does. Work top to bottom; the earlier sections move the number more than the later ones. Last updated July 2026.

Headline and value proposition

The top of the page decides whether anyone reads the rest. If a stranger cannot tell what you do and why it matters within five seconds, nothing below the fold gets a chance.

• The headline names a specific outcome, not your company or category.
• The headline matches the ad or search term that sent the visitor (message match).
• A subhead adds the concrete detail or mechanism the headline promises.
• The value proposition is above the fold, not buried under a hero image.
• You have removed clever wordplay that makes the reader translate.
• The first screen answers "what is this, who is it for, what do I do next."

If only one of these is wrong, fix the headline. It is the single highest-leverage element on the page, and a vague company-first headline is the most common conversion killer we see.

Call to action

The CTA is where intent turns into action, and small friction here costs a surprising amount. The goal is one clear next step, repeated, with no competing buttons pulling attention away.

• There is one primary action on the page, not three of equal weight.
• The CTA appears above the fold and again after the proof section.
• The button copy names the outcome ("Start my free audit") not the mechanism ("Submit").
• The button visually stands out from everything around it.
• Navigation links and secondary offers do not compete with the main CTA on a paid landing page.
• The click leads exactly where the button promised, with no surprise step in between.

Forms and friction

Every field you ask for costs you submissions, and most forms ask for more than the business actually needs at that stage. The rule: request only what you require to take the next step, and enrich the rest later.

• The form asks for the fewest fields the next step truly needs.
• Optional fields are removed, not just marked optional.
• You do not ask for a phone number unless a human will call.
• Error messages are specific and appear inline, not after a full-page reload.
• The form works on mobile without zooming or mis-firing autocomplete.
• A privacy reassurance sits near the button ("We never share your email").

Trust and proof

Skeptical visitors look for evidence that the promise is real. Proof is most persuasive when it is specific and closest to the point of action, not a logo wall floating in the middle of the page.

• Proof is concrete (a named result, a real number) rather than a vague testimonial.
• Social proof sits near the CTA, where doubt peaks.
• Any statistic on the page is true and sourced; invented numbers destroy trust when caught.
• Guarantees, trial terms, and pricing are stated plainly, not hidden.
• The page avoids claims you cannot back up ("guaranteed 300% lift").

Speed and technical health

A slow page converts worse before the visitor reads a word, and a page that is down converts nobody. Speed is a conversion factor, not just an SEO one.

• The largest content element loads in under about 2.5 seconds on mobile.
• Hero images and assets are compressed and correctly sized.
• You have cut third-party scripts that block rendering.
• You monitor that the page actually stays up, because downtime silently zeroes your conversion rate.

That last point is easy to forget until an outage during a campaign burns a day of ad spend. Lightweight uptime and response-time monitoring catches it before your visitors do, and it pairs naturally with the speed work above.

Mobile and layout

Most landing page traffic is mobile, so a page that only looks right on a desktop is optimizing for the minority. Check the real thing on a real phone.

• The CTA is reachable without scrolling past a tall hero on mobile.
• Text is readable without zooming; tap targets are large enough.
• The layout does not shift as images load (no jumpy content).
• The page reads in a clear visual hierarchy, one idea per section.

How do I use this checklist without a testing tool?

Run it as an audit first. Most of the fixes above are not opinions that need a split test; they are known leaks you can see and correct directly. A/B testing is for settling close calls once you have real traffic, and it needs thousands of conversions per variation to give a trustworthy answer, which most pages do not have. So the honest sequence is: fix the obvious problems on this list, then test the marginal ones only if your traffic supports it. If you want to compare the tools that help with each stage, our best CRO tools breakdown maps the field by job.

The fastest way to work the whole list is to have something read the page for you and score each area, so you are not grading your own homework. Converto does exactly that: paste a live URL and it runs a landing page audit across copy, layout, CTA, speed, and AI-readability, flags what is weak, and generates the rewritten variants to ship. It is the checklist above, automated, from $19/mo. For the CTA specifically, our guide to CTA optimization goes deeper on button copy and placement.

Where to start if you only fix three things

If you have ten minutes, not an afternoon, do these three. Rewrite the headline to lead with the outcome. Cut the form to the fields you truly need. Make one call to action obvious and repeat it after the proof. Those three account for the majority of the easy conversion wins on a typical page, and none of them require a developer, a redesign, or a testing budget. Everything else on this list compounds on top once those are solid.