Custom business website development

Tailor-made, carefully crafted mockups and 100% satisfaction before development, multi-site, multi-language, interconnections and business modules on demand

Let's build together custom, scalable websites that connect your customers, your teams, subsidiaries and business tools.

Discover how our experts can support you in the design and development of custom websites that meet your needs and integrate naturally with your existing systems.

Free strategic session (30 minutes)

Custom websites, flexible, precise, scalable

Custom and interconnected business websites are web platforms developed specifically to manage multiple entities, languages or markets, while integrating with your existing business tools.

Our approach? Pragmatic and progressive. We start from your real needs, identify essential connections and build a solution that evolves with you. From multi-subsidiary corporate sites to multi-agency real estate portals, we create platforms that simplify your daily operations.

Each project facilitates collaboration between your teams, harmonizes the management of your different sites and centralizes important information. The result? Simplified management of your web presence: synchronized content, centralized data, facilitated maintenance.

Websites that work from day one and grow with your needs.

Multi-site and multi-agency websites

Practical and efficient, multi-site architectures allow you to manage multiple websites from a central administration while maintaining the specificities of each entity.

Shared content between sites, customization by agency or subsidiary, simplified user and rights management, simultaneous updating of common information, delegated administration for each local manager… GDN develops solutions that respect your organization while simplifying maintenance.

Thanks to a solid technical architecture, an efficient caching system and continuous optimization, your sites remain fast and accessible for all your visitors.

Corporate websites with business modules

We develop functional corporate websites that present your activities, centralize your resources and offer business modules adapted to your needs.

Each site is designed to meet your concrete objectives: clearly present your products or services, manage your catalogs and documentation, offer dedicated spaces to your clients or partners, automate certain repetitive processes and interconnect with your daily tools.

Personalized modules, intuitive administration, connections with your tools: we develop websites that integrate with your work environment, CRM, management tools, databases, for a coherent experience.

Our solutions are modular, maintainable and designed to evolve, with particular attention to security and GDPR compliance.

Complete support and functionalities

GDN supports you at every step: analysis of your needs, custom design, progressive development, connections with your tools, training of your teams, maintenance and evolutions… We build together solid and scalable websites.

Design and Complete Support

  • In-depth analysis of your needs and custom design.
  • Constitution of a dedicated team for your project.
  • Carefully crafted UX/UI with faithful mockups and up to 100% satisfaction before development.
  • Robust and scalable technical architecture.
  • Progressive development in sprints with regular validation.
  • Integrations with your tools and process automation.
  • Rigorous testing and support for production deployment.
  • Continuous monitoring and evolutionary maintenance according to your needs.

Multi-Site and Multi-Language Management

  • Centralized administration to manage multiple sites.
  • Shared or specific content according to needs.
  • Simplified translations and local adaptations.
  • SEO optimization for each market.

User and Rights Management

  • Personalized roles by service or subsidiary.
  • Validation workflows adapted to your organization.
  • Delegated administration for local managers.
  • Secure connection with enhanced authentication if needed.

Personalized Business Modules

  • Booking systems and appointment scheduling.
  • Contact and customer request management.
  • Product catalogs with advanced filters.
  • Secure customer areas and dashboards.

Connections and Integrations

  • Data import/export from your existing tools.
  • APIs to communicate with CRM and management tools.
  • Synchronization of important information.
  • Automated data flows to avoid double entries.

Advanced Features

  • High-performance search with multiple filters.
  • Interactive maps and geolocation.
  • Smart forms with conditional logic.
  • Automatic notifications and PDF document generation.

Administration and Maintenance

  • Clear and intuitive administration interface.
  • Easy-to-use content editor.
  • Centralized media management.
  • Integrated traffic statistics.

Performance and Reliability

  • Optimized loading times for all users.
  • Guaranteed availability with permanent monitoring.
  • Scaling managed according to your needs.
  • Intelligent caching for fast pages.
  • Responsive support when needed.

Security and Compliance

  • Data protection according to current standards.
  • GDPR compliance with consent management.
  • SSL certificates and secure connections.
  • Daily automatic backups.
  • Regular security updates.

FAQ - Custom and interconnected business websites

We answer the most common questions about custom website development, multi-site management and connections with your existing systems.

A multi-site architecture allows you to manage multiple websites (subsidiaries, agencies, countries) from a single administration interface. You centralize maintenance while keeping the possibility to customize each site according to its specific needs. It's ideal for companies with multiple entities that want to harmonize their web presence.

Yes, we develop custom connectors to make your website communicate with your business tools: CRM, ERP, specialized software, databases... The objective is to avoid double entries and centralize your information. We analyze your existing systems and propose the best integration solutions.

We implement native language management in your site, with a simple interface to manage translations. Content can be shared or specific according to languages. We also optimize SEO for each market with international SEO best practices (hreflang, adapted URL structure).

The timeline depends on complexity and number of features. For a corporate website with standard business modules, allow 3 to 6 months. For a multi-site architecture with multiple interconnections, plan 6 to 12 months. We favor a progressive approach: launch of a first functional version, then addition of modules as needed.

Absolutely. We develop intuitive administration interfaces adapted to your teams. We provide training for your users and administrators. You remain autonomous for daily content management, while benefiting from our support for technical evolutions and maintenance.

A custom business website remains presentation and communication oriented with integrated business modules. A web application is centered on business processes and advanced user interactions. Complex websites are perfectly suited to multi-entity companies that want a unified web presence with business functionalities, without requiring a complete application.
Strategic support for your website

Trusted by SMEs and mid-market companies since 2006