Website platforms for large and growing companies – Webflow, a headless CMS or an enterprise CMS?

Choosing the wrong platform for your website rarely shows straight away. It shows when the marketing department has to raise IT tickets for simple text changes. When a WordPress update breaks three plugins. When a Sitecore installation from 2019 costs more to maintain than building something new would. Decisions made with good intentions have turned into long-term technical debt.

This article compares the most common enterprise CMS options for growing companies and companies with complex infrastructure: Webflow Enterprise, a headless architecture with solutions such as Contentful and Sanity, and traditional enterprise platforms such as Optimizely and Sitecore. The aim is not to crown a winning website platform, but to give you the right framework for choosing what suits your organisation.

Choosing a platform for your website is a strategic question, not a technical one

The most common mistake is to treat the choice of platform as an IT question. In practice, the platform decides how quickly the marketing department can act, how easy it is to scale to new markets and how much of the web development budget goes on maintenance versus innovation.

A well-chosen system gives the marketing team the autonomy to publish, test and optimise without going through IT for every change. A poorly chosen system creates friction that shows over time – not always in the hourly cost, but in how fast things get done.

Webflow Enterprise – when marketing should own its website

Webflow Enterprise brings design, CMS and hosting together in one system, without external plugins or separate server management. That minimises technical debt over time – one of the most common hidden costs of WordPress-based enterprise websites.

The platform is disproportionately common among growing companies that prioritise SEO performance, fast iteration and a stable technical foundation. Core Web Vitals and page speed are typically strong straight out of the box.

Webflow is actively working to become the go-to platform for larger companies that need scalable websites where IT and marketing teams can work together effectively, and it now describes itself as an "agentic marketing platform".

Well suited to:

• Marketing-driven B2B and B2C organisations where the website is a growth engine
• Companies with one primary brand and up to a couple of hundred CMS pages
• Teams that want design control without depending on developers for every change
• Websites where SEO performance and conversion matter a lot
• Companies that want more efficient production using Webflow's MCP server and a connection to an AI such as Claude

Limitations to be aware of:

• Multi-site management (several brands, several regions) requires separate Webflow projects
• The API is flexible, but not quite at the level of pure headless solutions
• Not (yet) suited to very complex online shops where transaction logic and order management are critical

Headless architecture – when content needs to flow everywhere

Unlike Webflow, which brings design, CMS and hosting together in one system, headless is an architectural choice: you combine a content system (we prefer Contentful or Sanity), a custom front end (typically Next.js) and a hosting platform (for example Vercel) as separate parts. Three layers, three suppliers, full control over each one.

The strength of this architecture is that content is stored as structured data and delivered via API to any surface – web, app, digital signage, AI agents. The same content in every channel, with no manual syncing.

Contentful is the more established of the two. It is used by global brands and offers robust role management and enterprise-grade scalability. Its pricing can add up with high traffic and many API calls, and the minimum licence cost is relatively high.

Sanity is more flexible and more developer-oriented, with an open schema system that lets you model content to match exactly how your business is structured. It is often used for projects with complex content models or unusual relationships between data, and its pricing is more manageable for smaller businesses.

Headless architecture is well suited to:

• Organisations with content that needs to be distributed to several channels or platforms
• Groups with several brands sharing a content infrastructure
• Businesses that want to integrate AI into their content workflows as effectively as possible – RAG systems and AI agents
• Businesses that want to design and develop with AI as efficiently as possible
• Projects where smooth back-end integrations with several business systems are central

Limitations to be aware of:

• You need a development team to build and maintain the front end – it does not come with the CMS
• Higher initial cost and longer lead times compared with Webflow, since the whole front-end stack comes on top
• Sanity Studio is a well-designed editorial interface – but it requires the content schema to be well modelled from the start. The friction lies in the technical setup, not in the day-to-day editorial work

Optimizely and Sitecore – when the enterprise requirements are strict

Optimizely (formerly Episerver) and Sitecore are the dominant enterprise platforms for organisations with complex requirements for permissions, workflows, personalisation and integration with business systems.

These systems are built for organisations with dedicated web editors, strict approval workflows and advanced personalisation needs based on CRM data. They are not primarily designed for marketing teams that want to move fast – they are built to give large organisations control.

Well suited to:

• Government agencies, financial institutions and others with strict compliance requirements
• Organisations that already have an established implementation and want to build on it
• Businesses with complex personalisation needs based on CRM data

Limitations to be aware of:

• A high total cost of ownership: licence, implementation and ongoing maintenance
• Long implementation times – expect 6–12 months for a well-planned launch
• Core Web Vitals and SEO performance require active, separate optimisation

How do you choose the right platform for your website?

There is no universally right answer – but these are the questions to ask:

• Who owns the website in practice? If the answer is "marketing", look at Webflow. If it is "IT/the development team", look at a headless architecture or an enterprise CMS.
• How many channels and surfaces? Website + app + other digital surfaces = headless architecture. Website as the primary channel = Webflow or an enterprise CMS.
• What is the time horizon? Launch quickly and iterate = Webflow or a headless architecture. Build for 5–10 years with complex integrations = an enterprise CMS.
• Do you want to integrate AI? API-based headless solutions are a natural fit for AI integrations. Read more about it in Building a website with AI: Claude Code, Next.js and Sanity.

Visibility in AI search – yet another layer to consider

One aspect that is rarely discussed when choosing a platform is how your technical architecture affects your visibility in AI-generated answers. Fast pages, a clear content hierarchy and structured data make it easier for Google to interpret the page, but which sources AI Overviews cite depends mainly on the content. More on that in AI Overviews and GEO: how your company appears in Google's AI answers.

Wondering which platform to choose for a new website or a rebuild? Get in touch – we help you make the right choice from day one, and we build both Webflow websites and coded headless solutions. Read more about our different web development services, or explore how we work as a headless CMS agency.