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About
agence web Adevcode creation site internet

A Human-Sized Digital Agency Specializing in Tailor-Made Solutions

AdevCode is a digital agency specializing in the creation of high-performance, custom websites. Based in France, our web agency in Paris and Lyon has been helping businesses accelerate their digital transformation for over 8 years. We create tailor-made websites designed to meet your specific business needs.

Our team of experts masters the latest trends and technologies to develop your digital presence. Every digital project benefits from personalized support, from the initial analysis to the implementation of an optimized content strategy designed to improve search engine visibility.

Our Web Services to Boost Your Online Presence

Custom Website Development

We are a website development agency specializing in innovative web solutions. Our tailor-made approach ensures that every website is perfectly aligned with your business objectives.

Creating a website with AdevCode means benefiting from strong technical expertise combined with strategic guidance throughout your project.

Studies show that 73% of users leave a slow website. This is why we build websites that are optimized for speed and performance from the very beginning.

eCommerce Website Development

Our web agency develops high-performance online stores using WooCommerce, Shopify, and PrestaShop. We create customized eCommerce solutions with advanced integrations and UX design optimizations to maximize your online sales.

Observed Results:

  • Average conversion rate: 2.8%
  • Average order value increased by 35%
  • 67% of mobile traffic converted

Our team

Andrei Leasenco
Andrei Leasenco
CEO, Web developer.
Ksenja Kovaleva
Ksenja Kovaleva
SEO
Lucas Moreau
Lucas Moreau
Web designer
Camille Laroque
Camille Laroque
SMM
Mathieu Lefèvre
Mathieu Lefèvre
Devops specialist.

Website Redesign & Web Design

Does your website redesign project require an experienced web agency? We modernize your digital presence while preserving your organic search rankings. Our web design approach combines aesthetics, user experience, and technical performance.

Digital Marketing & SEO

Our digital agency specializes in SEA (Search Engine Advertising) and paid search strategies to maximize your online visibility. We develop comprehensive digital marketing strategies, including social media and digital communication.

Search engine optimization represents 78% of our web projects. This expertise helps deliver sustainable and long-term results on Google.

Our Technical Expertise

WordPress & Custom Development

WordPress powers 43% of websites worldwide. We develop custom WordPress solutions optimized for performance, security, and scalability. Our Paris-based web agency has extensive expertise in this technology.

Innovative eCommerce Solutions

Our eCommerce development projects use the latest trends and technologies. Shopify Plus, advanced WooCommerce solutions, and custom PrestaShop development — we adapt the right solution to your products, services, and business objectives.

Advanced Technical Solutions

For complex projects, we use Symfony, Laravel, and Next.js. These technologies allow us to build robust, scalable, and high-performance web applications.


Some Recent AdevCode Projects

Corporate Website for a Paris-Based Company

Client: Accounting firm
Solution: Custom WordPress website with SEO optimization
Results: +89% traffic growth, +34% qualified leads within 6 months

Natural Cosmetics eCommerce Store

Client: French artisan brand
Solution: Shopify website with optimized UX design
Results: 2.8% conversion rate, 156% growth

Custom B2B Platform

Client: Lyon-based service company
Solution: Laravel application with API integration
Results: 45% reduction in processing time, +23% customer satisfaction


Why Choose AdevCode as Your Web Agency?

Tailor-Made & Transparent Support

Unlike large web agencies, we focus on close collaboration and personalized service. A dedicated project manager supports you throughout the entire website development process. This approach ensures smooth communication and results aligned with your business objectives.

Innovation & Technical Expertise

Our digital agency specializes in website creation and masters the latest technologies. We develop innovative solutions that go beyond market standards. This technical expertise makes the difference in your digital projects.

Eco-Friendly Approach

We integrate Green IT principles into our development process. This responsible approach reduces carbon footprint while improving website performance. Eco-designed websites can consume up to 67% less energy.


Our Website Creation Methodology

Requirements Analysis & Digital Strategy

Every project begins with an in-depth analysis of your objectives. Our digital communication agency studies your market and identifies opportunities for optimization.

UX Design & Prototyping

Our designers create conversion-focused interfaces. UX design guides every visual decision to maximize user engagement and improve the customer experience.

Web Development & Integration

Our developers transform designs into optimized code. Website development follows modern standards with a strong focus on performance, security, and scalability.

SEO Optimization & Website Launch

The production launch includes complete SEO optimization. We configure all necessary tools to maximize your visibility in search engines.


Frequently Asked Questions (FAQ)

What is a web agency?

A web agency combines technical and marketing expertise to create high-performance websites. It helps businesses develop and implement their overall digital strategy.

How much does website creation cost?

A custom corporate website generally costs between €3,000 and €8,000. An eCommerce website starts from €8,000. Custom developments require budgets based on the required features and complexity.

What is the difference between a web agency and a freelancer?

A web agency brings together multidisciplinary teams including developers, designers, and SEO specialists. This structure allows complex projects to be managed with comprehensive expertise.

How do you choose a good web agency?

Review the agency’s portfolio, technical expertise, methodology, and proven results. A good web agency should understand your industry and demonstrate measurable achievements.

How long does it take to create a website?

A corporate website usually requires 6 to 8 weeks. An eCommerce website takes 8 to 12 weeks depending on complexity. Custom projects may require several months.


What Our Clients Say

“AdevCode created our eCommerce website with a highly professional approach. The team perfectly understands the challenges of custom web development.”
— Marie Dubois, Marketing Director

“Excellent support throughout our redesign project. This web agency in Lyon delivered a high-performance website that generates real business results.”
— Thomas Martin, Managing Director


Resources for Entrepreneurs

Website Creation Guide

Discover our methodology for creating high-performance websites. This guide explains the key steps and best practices of modern web development.

SEO vs SEA: Improve Your Search Visibility

Organic search or paid advertising? Our analysis compares these two digital marketing channels to help maximize your online visibility.

Web Design Trends 2025

The latest trends and technologies are transforming user experience. Discover how to integrate these innovations into your digital strategy.


Let’s Discuss Your Web Project

Your project deserves a tailor-made approach. Our specialized digital agency analyzes your needs and provides customized solutions.

Contact our team today to develop your digital presence.