What Features Does an Online Store Website Need? The Complete 2026 Checklist

According to Statista’s 2025 figures, Vietnam’s e-commerce revenue reached over $25 billion USD, up 18% year over year. But while the market is booming, thousands of online stores still fail simply because they’re missing the most basic features.

Are you about to build a new online store or upgrade an existing one? This article provides the most complete and detailed checklist of features you need — from core functionality to advanced features that boost conversion rates and revenue.

1. Why Do Features Make or Break an Online Store?

A Baymard Institute study found that 69.99% of shopping carts are abandoned before checkout is completed. The top causes include a complicated checkout process (17%), lack of trust in the website (19%), and poor user experience (24%).

This means website features aren’t just a technical concern — they directly impact your revenue. Each well-designed feature can boost conversion rates by 5-30%.

Before reading further, check out our article on online store website design for a fuller picture of the build process.

2. Product Display & Management Features

This is the foundational group of features that determines whether customers want to buy.

2.1 Product Category Page

• Multi-dimensional filters: Filter by price, color, size, brand, star rating
• Flexible sorting: By price ascending/descending, newest, best-selling, highest rated
• View modes: Grid view and list view for user preference
• Smart pagination: Infinite scroll or “load more” for a smooth experience
• Breadcrumb navigation: Helps users know where they are within the site structure

2.2 Product Detail Page

• High-quality image gallery: At least 4-6 images, with zoom and 360° view support
• Product video: Boosts conversion rates by up to 80% according to Wyzowl research
• Detailed description: Specifications, materials, usage instructions
• Size/spec charts: Especially important for fashion, footwear, and home goods
• Related products & recommendations: Increases average order value (AOV)
• Ratings & reviews: 93% of shoppers read reviews before deciding (BrightLocal)
• Stock status: Displaying remaining quantity to create urgency

2.3 Category & SKU Management

• Unlimited category hierarchy levels
• Product variant management (color, size, material)
• Inventory management by variant
• Bulk product import/export via CSV/Excel file

3. Cart & Checkout Features

This is the most critical group of features determining whether a customer completes a purchase. An optimized checkout process can bring cart abandonment down to under 50%.

3.1 Smart Shopping Cart

• Mini cart (floating cart): Lets users view and edit their cart without leaving the current page
• Cart persistence: Automatically saved even if the user isn’t logged in or closes the browser
• Coupon application: A coupon code field with clear error messages
• Shipping cost calculation: Calculated right in the cart before checkout
• Upsell/cross-sell suggestions: “Customers also bought” shown right in the cart

3.2 Checkout Process

• One-page or clear multi-step checkout: A maximum of 3 steps: Information → Shipping → Payment
• Guest checkout: Allows purchases without creating an account
• Address autofill: Integrated with Google Places API or Vietnamese address data
• Multiple saved shipping addresses: For logged-in users

3.3 Payment Gateways

Online stores in Vietnam need to support the full range of popular payment methods:

• E-wallets: MoMo, ZaloPay, VNPay, ShopeePay
• Domestic cards: ATM/Internet Banking via VNPAY, OnePAY gateways
• International cards: Visa, Mastercard, JCB via Stripe or PayPal
• COD (Cash on Delivery): Still accounts for 60-70% of orders in Vietnam
• 0% installment plans: Integrated with Kredivo, Muadee, or partner banks
• QR code payment: VietQR for fast bank transfers

4. Order & Customer Management Features

4.1 Order Management System (OMS)

• Order dashboard: View all orders by status (new, processing, delivered, cancelled)
• Real-time order tracking: Integrated with shipping carriers (GHN, GHTK, Viettel Post, J&T)
• Invoice & shipping label printing: Auto-generated PDFs with barcode/QR code
• Returns management: A clear process for handling returns and refunds
• Automated email/SMS notifications: Order confirmation, shipping status updates

4.2 Customer Management (CRM)

• Detailed customer profiles: Purchase history, total spend, favorite products
• Customer segmentation: VIP, regular, new, inactive
• Loyalty programs: Points, rewards, tier upgrades
• Wishlist: Save products of interest to buy later
• Product comparison: Allows comparing up to 3-4 products at once

4.3 Inventory & Shipping Management

• Low stock alerts
• Multi-warehouse or multi-location inventory management
• Automatic shipping cost calculation by region/weight/order value
• Shipping API integration for automatic waybill printing

5. Marketing & SEO Features

An online store needs to be found. Built-in marketing features help you grow traffic and revenue without relying entirely on paid ads.

5.1 On-Page SEO

• Custom meta title & description: For every product, category, and blog page
• SEO-friendly URLs: Like /products/product-name instead of /product?id=123
• Automatic schema markup: Product schema, Review schema, BreadcrumbList
• Automatic XML sitemap: Updates whenever a new product is added
• Canonical URLs: Avoid duplicate content for product variants
• Images with alt text: Optimized alt text for image SEO

For comprehensive SEO optimization, see our full-service SEO guide and WordPress on-page SEO checklist.

5.2 Marketing & Promotion Tools

• Coupon code system: Percentage-based, fixed amount, free shipping, usage limits
• Flash sales & countdown timers: Create urgency with a countdown clock
• Bundles & combos: Buy-more-save-more, buy-2-get-1-free
• Smart pop-ups: Exit intent, welcome new visitors, promotion announcements
• Integrated email marketing: Connect Mailchimp, GetResponse, or your own system
• Retargeting pixels: Facebook Pixel, Google Ads Tag for remarketing campaigns

If you want to boost revenue quickly, pair this with Google Ads and Facebook Ads to reach potential customers more effectively.

5.3 Analytics & Reporting

• Revenue reports by day/week/month/year
• Analysis of best sellers and slow-moving inventory
• Customer behavior reports (purchase funnel, exit points)
• Google Analytics 4 and Google Search Console integration
• Traffic source and conversion rate reports by channel

6. Security & Performance Features

Google confirms that page load speed is an important ranking factor. For every additional second of load time, conversion rate drops by about 7% (according to Portent).

6.1 Security

• SSL/HTTPS: Mandatory for every online store, protecting payment data
• PCI DSS compliance: The security standard for processing card payments
• Two-Factor Authentication (2FA): For admin accounts
• Anti-bot CAPTCHA: Protecting registration, login, and review forms
• Automatic backups: Daily backups, retained for at least 30 days
• Web Application Firewall (WAF): Protection against SQL injection and XSS attacks

6.2 Performance & Speed

• CDN (Content Delivery Network): Cloudflare or equivalent for fast global loading
• Automatic image optimization: Compression, WebP conversion, lazy loading
• Smart caching: Page cache, object cache, database query cache
• Good Core Web Vitals: LCP < 2.5s, FID < 100ms, CLS < 0.1
• Mobile-first responsive design: Over 70% of online shoppers in Vietnam use mobile phones
• PWA (Progressive Web App): A native app-like experience that works offline

Want to speed up your website? Read our detailed guide on WordPress website speed optimization to improve your Core Web Vitals score today.

7. Comparison Table: Which Platform Should You Choose?

Not every platform fully supports all the features above. Here’s a quick comparison for reference:

See a more detailed comparison in our article WordPress vs. Shopify vs. Custom Code to make the best choice for your business.

Frequently Asked Questions

What’s the minimum feature set an online store needs?

At a minimum, an online store needs: a product listing with images and prices, a shopping cart, at least 2 payment methods (COD + e-wallet), SSL security, and a mobile-responsive interface. These features are enough to start selling, but to compete effectively you’ll need to gradually add more advanced features.

How much does a fully-featured online store cost to build?

Cost depends on the platform and scale. WooCommerce: from 5-20 million VND for a basic-to-full-featured website. Shopify: from 10-30 million VND plus monthly app costs. Custom website: from 30-100 million VND and up. See detailed pricing on our website design pricing page.

Do I need all the features right from the start?

Not necessarily. Apply the MVP (Minimum Viable Product) approach: launch the core features first (products, cart, checkout, order management), then gradually add marketing and advanced features based on real data and customer needs.

Which feature boosts conversion rate the most?

Based on research across multiple e-commerce platforms, the 3 features with the biggest impact on conversion rate are: (1) Fast page load speed – each second of improvement increases conversion rate by 7%; (2) Genuine customer ratings and reviews – increases trust by up to 270%; (3) A simple checkout process (1-2 steps) – reduces cart abandonment by 20-35%.

Does an online store need a mobile app?

For most small and medium businesses, a dedicated app isn’t necessary. Instead, invest in a well-optimized mobile-first website, and consider rolling out a PWA (Progressive Web App) to deliver an app-like experience without the cost of developing separate iOS/Android apps.