Ecommerce Website Development India. Stores Engineered to Convert.

Ecommerce CRO is not random A/B testing. It is a structured programme across the six highest-leverage conversion points: Product Detail Pages (PDP — where intent converts to consideration), collection pages (where consideration narrows to choice), on-site search (often the highest-intent traffic on a store, criminally under-optimised), cart (where price objections surface), checkout (where friction kills deals), and post-purchase (where LTV is built or lost).

We audit all six at the start of every engagement, prioritise by revenue-impact, and run rolling experiments with VWO or Convert. A well-run CRO programme on a ₹2 crore/month ecommerce account typically unlocks ₹18–35 lakh/month of additional revenue inside the first 6 months without increasing ad spend.

Platform choice is the single biggest technical lever on ecommerce economics. Shopify wins for time-to-launch, international simplicity, and operational low-maintenance — at the cost of transaction fees and rigid back-end logic. WooCommerce wins for deep customisation, content-marketing integration, and fee-free transactions — at the cost of more maintenance and hosting responsibility. Headless Shopify + Next.js wins for performance-first brands with the engineering team to maintain it. Magento, in our view, is rarely the right fit for the businesses we work with in 2026 — the total cost of ownership is high, it needs dedicated hosting and specialist developers who are scarce and expensive in India, and the upgrade burden is heavy. That is our opinion rather than a universal verdict; Magento still suits very large catalogues with the in-house engineering to run it.

We pick stack based on three-year economics: the brand's expected GMV trajectory, the in-house or partnered engineering capacity, the content-to-commerce ratio, and the international complexity. That framework is documented in the kickoff SOW so the decision is defensible at board level.

Faster pages convert better — that much is well established — but the published evidence does not pin down a precise per-100ms figure: the large documented conversion gains come from broad site-speed improvements measured in the field, not from isolating a single 100ms change in Largest Contentful Paint, so we do not put a specific percentage or rupee figure on a per-100ms basis. The best-scoped real finding that does exist is the Google-commissioned, Deloitte-authored study Milliseconds Make Millions (prepared by Deloitte Ireland LLP, with data from Fifty-Five): across 37 brand sites and more than 30 million sessions, a 0.1-second improvement in overall mobile site speed was associated with an 8.4% rise in retail conversions (10.1% for travel). It is correlational, it predates Core Web Vitals (it used First Meaningful Paint and Estimated Input Latency), and it measures whole-site speed rather than Largest Contentful Paint — strong evidence that faster sites convert better, not a per-LCP figure. Most Indian ecommerce sites are carrying 1.5–3 seconds of recoverable latency.

Every site we build targets LCP under 2.5s, CLS under 0.1, INP under 200ms on a mid-range Android on 4G. That means image optimisation (AVIF + WebP with fallbacks), critical CSS inlining, lazy loading below-the-fold, font display and preload strategy, third-party script audit, server-side rendering where appropriate. Performance is a conversion feature, not a vanity metric.