Web Design & Development: business sites, stores, and landing pages built to sell
We design and build business sites, online stores, and landing pages optimized for conversion. We match the stack to the project, from ultra-lightweight builds on React, TypeScript, Tailwind CSS, and Supabase to WordPress for content-driven projects. AI speeds up the engineering and cuts design time, with experienced developers overseeing the whole thing.
- Free quote in 48h
- No long-term contracts
- A dedicated team





Your business website is your primary sales channel.
We build sites that load fast and run reliably, with layouts that lead the user to a goal: contact, a form submission, or a purchase. We match the technology to the project. When speed and rich functionality matter, we write component-based code on React and TypeScript paired with the Supabase cloud. Sites focused on content marketing and extensive blogging run on an optimized WordPress setup, and online stores on Shopify or WooCommerce. AI tools cut prototyping time in half, and an engineer reviews every piece of the structure before launch.
4 reasons your business website is losing customers
Technical and design problems we solve in our day-to-day work with clients.
An overloaded structure that hides the path to conversion
Many sites are designed as works of art, with user behavior as an afterthought. Information overload and hidden contact details mean customers leave before they send an inquiry or buy.
Slow load times on phones
Heavy code and server misconfiguration stretch load times on phones. Users give up waiting, and you lose traffic you're already paying for in ad campaigns.
A blind start to marketing, with analytics left for later
When a site launches before tracking codes, a tag manager, and search engine integration are in place, every promotional effort that follows runs blind. Campaigns on such a site leave ROI unmeasured.
Total dependence on developers for every minor change
A site built with overly complex architecture ties your marketing team's hands. Every simple article or price change means paying an outside specialist, which adds fixed costs and slows the work down.
4 things a new website does for your business
We design sites around performance: we combine design psychology with clean code, lower paid campaign costs, and a cohesive visual identity.
Turn site traffic into inquiries and sales.
We design simple user journeys and clear calls to action. Every section of the site leads the visitor toward a specific micro-goal, and a shorter path makes it easy to submit an inquiry or add a product to cart.
- Information architecture built around sales
- Forms and checkout flows stripped of unnecessary fields
- Visible calls to action at decision points
Six pillars of our web engineering
We combine sales psychology with clean code and editing automation, so your team can run the site on its own.
UI/UX Design
Page layout designed around the buying decision.
We design functional wireframes and the visual layer around customer behavior. Buttons, section layouts, and navigation make the decision easier and lead the user to take action.
- Best for
- Brands that want a distinctive image and high conversion.
React, TypeScript & Supabase
A modular tech stack, light and fast.
For projects demanding serious speed, rich functionality, and strong security, we write clean, component-based code in React, TypeScript, and Tailwind CSS, paired with a Supabase cloud database. Pages load in milliseconds, user management is built in, and every feature lives in the site's own code, out of reach of plugin failures.
- Best for
- Companies that want a fast, high-performing business site or landing pages.
Optimized WordPress
A proven foundation for content-marketing-driven projects.
For sites that publish articles regularly, run an extensive blog, and rank for a wide range of keywords, we configure a lean WordPress setup stripped of code bloat. We take care of code security and search engine requirements.
- Best for
- Brands building expert authority and organic traffic through extensive knowledge bases.
Shopify & WooCommerce Stores
E-commerce technology matched to your operating scale.
We match the platform to your growth plans. We deploy stable, secure Shopify stores for businesses focused on rapid scaling, and flexible WooCommerce for brands that need freedom in their product range and deep content integration.
- Best for
- Online stores planning expansion and sales process automation.
Marketing-Ready Setup
Analytics infrastructure deployed from day one.
Every website we hand over comes with a configured Google Tag Manager setup, Google Analytics 4 tracking, ad platform pixels, and basic search engine mapping.
- Best for
- Businesses that want to launch paid campaigns immediately after their site goes live.
Modular Editing System
Your team manages the content.
We build sites on flexible, reusable blocks. Once the project wraps up, you get personalized video guides so your team can update text, swap photos, or add products right from the panel.
- Best for
- Marketing teams that value independence and speed when making ongoing updates.
Business sites, stores, and landing pages that work for you
A selection of projects we delivered to our quality standard: conversion psychology, high technical performance scores, and analytics ready for advertising.

Yerbador Slim Fit
A supplement landing page with strong social proof and a 1-step checkout.

Sakuro Matcha: przepisy
A content site supporting matcha sales with UGC and reviews.

O2 Trainer
A DTC product landing page with a creator hook and an above-the-fold buy button.

Ladies Gym
A fitness club landing page with a 'first workout free' lead form.

KIDEA Halloween
A seasonal face paint landing page: ready-made looks, a painting guide and checkout on Allegro.

Zest
A performance marketing agency site with case studies and lead generation.

MaxiMobil
An auto repair shop in Warsaw: a site that collects appointment bookings.

Doradcy Energetyczni
Energy consulting for businesses: a calculator plus lead generation.

MDC²
A warehouse and industrial space developer: offer-specific landing pages.

Food Ingredients & Sourcing Expo
A B2B trade fair for food ingredients: visitor registration and stand bookings.
The Career Doctor
Career coaching and executive coaching: an expert site with lead generation.
From strategy to a finished site in 4 stages
We run the entire design process on a repeatable checklist, so we deliver on time and control quality at every stage.
Strategy and Functional Design
- Auditing business goals and modeling information architecture.
- Functional wireframes designed for conversion.
- A distinctive visual design aligned with your brand identity.
Engineering Build
- Coding in React + TypeScript or on WordPress.
- Configuring the Supabase database and cloud security.
- Optimization for load speed and Core Web Vitals.
Integrations and Analytics
- Deploying Google Tag Manager, GA4, and ad platform pixels.
- Display testing across different phone models.
- Payment and logistics system integration (for online stores).
Handover and Support
- A guide package for editing content yourself in the panel.
- Training your team on dashboard use and product management.
- 30 days of free technical support after launch.
„Zest constantly takes the initiative and proposes solutions that will work best at a given moment in the campaign."

See how your new site starts selling for you.
Free quote. Delivery in as little as one week.
What you get from working with us
- A ready-to-use business site, online store, or landing page, with a complete technical implementation.
- A configured cloud or server environment, an SSL security certificate, and turnkey domain setup.
- Integrated analytics and ad infrastructure, with Google Tag Manager and Search Console deployed from day one.
- A video guide package for dashboard use, plus 30 days of free technical support after launch.
Frequently Asked Questions
What sets a tech stack built on React and Supabase apart?+
This is an engineering approach used to build web applications. We write the site as clean, component-based code (React + TypeScript), and the Supabase cloud platform handles data and backend functions (like forms or user accounts). Pages load in milliseconds, the site is well protected against attacks, and your team saves the time spent on plugin maintenance.
When should I choose WordPress, versus a component-based architecture (React)?+
WordPress works best for business sites focused on content marketing and a large blog, and for teams already comfortable with its editing interface. We deploy component-based architecture (React + Supabase) for projects that demand top-tier code performance, strong data security, and custom application functionality, where load speed is the priority.
Shopify or WooCommerce: which is the better choice for my store?+
Choose Shopify if you want stability and security with minimal development upkeep. WooCommerce, built on WordPress, suits e-commerce that needs product flexibility, deep blog integration, and sales free of platform commission fees. We most often recommend it for brands wanting more control over their code and data.
How much does a website cost, and how long does it take?+
Prices start at $500 for a landing page or a simple business site. Delivery typically takes up to a week, depending on resource availability (content, graphics, system access).
Other services in Creative & Conversion
AI Creatives
AI creative production: video, animation, billboards and statics generated with AI models under human direction. Dozens of test-ready variants for your campaigns, skipping photoshoot logistics entirely.
UGC & Creators
UGC content creation agency work: a steady stream of natural video from our network of 200+ creators. We produce variants that look like an honest recommendation from a friend, run as ads straight from creators' own accounts.
Social Media
Social media marketing agency running profiles as a content factory that tests what engages your customers before you commit paid ad budget. We deploy trained AI that moderates comments 24/7.
Articles: Websites
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