Conversion Rate Optimisation (CRO)

Definition

Conversion Rate Optimisation (CRO) is the discipline of increasing the proportion of website visitors who complete a defined goal — a purchase, a free trial signup, a contact form submission, a phone call, or another target action. CRO is closely related to SEO because both affect the business outcome of organic traffic: SEO brings visitors to the page; CRO determines what percentage of those visitors convert. **CRO methods**: (1) **A/B testing** — showing two versions of a page (A: original; B: variant with a change) to different portions of traffic and measuring which converts better. Tools: Google Optimize (deprecated), VWO, Optimizely, Unbounce. (2) **Heatmaps and session recording** — tools like Hotjar or Microsoft Clarity that show where users click, how far they scroll, and where they abandon — revealing usability and conversion friction without requiring a controlled test. (3) **Funnel analysis** — identifying at which step in a multi-step conversion funnel users drop off. (4) **Copy optimisation** — testing different headlines, CTA button text, value propositions, and benefit statements. (5) **UX improvements** — simplifying forms, reducing fields, improving mobile layout, improving page load speed. **CRO and SEO interaction**: page load speed affects both SEO (Core Web Vitals is a ranking factor) and CRO (slow pages have higher bounce rates and lower conversion rates). Content quality affects both SEO (thin content ranks poorly) and CRO (thin content doesn\'t persuade visitors). Landing page structure for SEO (content depth for ranking) sometimes conflicts with CRO (minimal distractions for conversion) — the best pages balance both through strategic content hierarchy.

Why it matters for SEO

CRO amplifies the value of SEO investment. If a page gets 1,000 organic visits per month at a 2% conversion rate, it generates 20 conversions. Improving CRO to 4% doubles conversions without any additional traffic. Combined with SEO that grows the traffic to 2,000 visits, a 4% conversion rate generates 80 conversions vs the original 20 — a 4× improvement from the two disciplines working together.

How DeepSEOAnalysis checks this

The audit checks the technical and structural factors that affect conversion rate alongside rankings: page load speed via CrUX (slow pages lose both rankings and conversions), CTA element visibility above the fold (the audit checks whether H1 and primary content appear early in the DOM without significant above-the-fold page overhead), structured data (FAQPage and HowTo schema can improve click-through from search results before the user even reaches the landing page), and mobile layout (mobile-unfriendly pages fail both SEO and conversion on the majority of organic traffic).

Useful tools and resources

• Free performance audit