Building a website for an SME starts with a structural decision: the choice of CMS (Content Management System). WordPress, Wix, Squarespace, Webflow, Shopify... the options have multiplied in recent years, each with its own promises. The business owner without a technical background faces comparisons that are often biased, frequently written by the platforms themselves.
According to W3Techs (March 2025), WordPress powers 43.5% of websites worldwide. This figure includes personal blogs and corporate sites alike. It proves nothing on its own, but it reveals a massive ecosystem in terms of developers, extensions, and documentation. Other CMSs share the rest of the market: Shopify captures 4.6%, Wix 2.5%, Squarespace 2.1%, and Webflow approximately 1%.
This comparison applies concrete criteria: SEO, performance, real cost, flexibility, maintenance. The objective is to provide you with decision-making elements, not to sell a solution.
WordPress: An Open-Source CMS With a Learning Curve
WordPress is open-source software, which means its code is free. You download the software, install it on hosting of your choice, and you own it. This distinction is fundamental: with WordPress, you do not rent space on a third party's platform.
The ecosystem includes over 60,000 plugins and thousands of themes. This richness offers nearly unlimited flexibility: contact forms, e-commerce via WooCommerce, online booking, multilingual capabilities, member areas. The flip side of this freedom is responsibility. Hosting, security updates, plugin compatibility: everything falls on you or your service provider.
A WordPress site built with an FSE (Full Site Editing) theme and the native Gutenberg editor produces lightweight, fast pages. Third-party builders like Elementor or Divi add visual flexibility but weigh down the code. The choice of technical architecture directly determines site performance.
The learning curve is real. Publishing an article or modifying a page remains accessible. Configuring technical SEO, managing backups, and optimising the database require skills or professional support. That is the price of complete ownership.
Wix: Simplicity at the Expense of Control
Wix has attracted millions of users with its drag-and-drop editor. No code to write, polished templates, hosting included. For a freelancer who wants an online presence in a weekend, the proposition holds up.
Limitations emerge as the business grows. SEO on Wix has improved (title tags, meta descriptions, XML sitemap), but URL structure remains constrained, schema markup is limited, and source code access is partial. An Ahrefs study (2024) across 6.4 million domains shows Wix sites represent 1.4% of first-page Google results, compared to 35% for WordPress. The correlation is not causal, but it reflects a technical ceiling in advanced SEO.
Performance also raises questions. Wix sites load a proprietary JavaScript framework that adds weight to every page. According to HTTPArchive data (2024), the median page weight of a Wix site is 3.2 MB versus 2.1 MB for WordPress. On mobile and in areas with limited connectivity, this difference translates into additional seconds of loading time.
The business model relies on monthly subscriptions ($17 to $159 per month). Bandwidth, storage, and certain features are capped depending on the plan. The day you wish to migrate to another CMS, you start from scratch: Wix does not offer native content export in a standard format.
Squarespace: Design First, Functionality Second
Squarespace targets creatives and visual professions: photographers, architects, designers. Templates are aesthetically refined, typography is polished, and mobile rendering is consistent. For a portfolio or a clean brochure site, the platform delivers professional results quickly.
SEO on Squarespace covers the fundamentals: editable title tags and meta descriptions, clean URLs, automatic sitemap, Open Graph markup. The gaps lie in advanced aspects. No granular control of the robots.txt file, no native schema markup beyond standard types, no fine-tuned crawl budget management. For a local SME targeting a handful of keywords in its catchment area, these limitations may not be blocking. For an ambitious SEO strategy spanning dozens of pages, they become constraining.
Pricing ranges from $16 to $65 per month (annual plans). E-commerce is available but functionality lags behind Shopify or WooCommerce: limited stock management, no multi-warehouse handling, few native third-party integrations.
Like Wix, Squarespace is a closed system. You do not own your site's code. You depend on the platform for features, updates, and service continuity.
Webflow: Technical Power at a Matching Price
Webflow positions itself between a traditional CMS and a development tool. Its visual editor generates clean HTML/CSS code without framework overhead. Web developers and agencies appreciate this approach: the output is performant, the design pixel-perfect.
The integrated CMS handles dynamic collections (articles, products, projects) with a database logic accessible without coding. The native animation and interaction system allows visually sophisticated sites without additional JavaScript.
The friction points for an SME are twofold. First, cost: CMS plans start at $29 per month for a basic site. Hosting is included but bandwidth is limited. Add forms, e-commerce, and integrations: the monthly bill climbs quickly. Second, autonomy: modifying text content remains straightforward, but touching the structure or design presupposes familiarity with the interface. Training an office manager to publish an article on Webflow takes longer than on WordPress.
The plugin ecosystem is restricted compared to WordPress. Missing functionality is compensated through third-party integrations (Zapier, Make, API services), which adds complexity and recurring costs.
Shopify: The E-commerce Reference, Not a General-Purpose CMS
Shopify dominates the hosted e-commerce solutions market. The platform handles product catalogues, carts, payments, logistics, taxes, and currencies with proven reliability. For an SME selling physical products online, Shopify dramatically reduces time to market.
The common misconception is using Shopify as a general-purpose CMS. The blog section is rudimentary: limited page layout control, no nested categories, no advanced page builder. Content pages are restricted to a basic editor. A plumber or a physiotherapy practice has no reason to build their brochure site on Shopify.
Pricing starts at $39 per month (Basic plan) and rises to $399 for the Advanced plan. Transaction fees apply if you do not use Shopify Payments. Premium themes cost between $150 and $400 as a one-time purchase. Third-party apps (reviews, upsell, advanced SEO) charge monthly subscriptions that inflate the total.
On SEO, Shopify imposes structural constraints. Product URLs always include "/products/" and collections include "/collections/". The robots.txt file has become partially editable since 2024 but remains more rigid than on WordPress. For advanced technical SEO, this rigidity holds back certain optimisations.
Comparison by Criterion: The Summary
Five criteria allow you to decide based on your SME's profile.
SEO. WordPress provides the most complete control: URLs, schema markup, speed, robots.txt, redirects, server logs. Webflow produces clean code with solid native SEO. Squarespace covers the fundamentals. Wix and Shopify present structural limitations on advanced SEO.
Performance. Webflow and WordPress (native FSE theme) produce the lightest pages. Wix and Squarespace embed frameworks that add rendering weight. Shopify sits between the two, with a performant CDN infrastructure but occasionally heavy themes. Page speed remains a lever to optimise regardless of the CMS chosen.
3-year cost. WordPress requires a higher initial investment (custom build), but lower recurring costs (hosting: $10-50/month). SaaS platforms spread the cost but accumulate monthly subscriptions. Over three years, a Wix Business site costs approximately $4,300 (subscription alone). An equivalent WordPress site costs between $2,500 and $4,000 (build + hosting + maintenance), with complete code ownership included.
Flexibility. WordPress has no rival in terms of plugins and integrations. Webflow follows with an open API system. Shopify excels at e-commerce but remains limited elsewhere. Wix and Squarespace lock you into their ecosystem.
Maintenance. SaaS platforms handle updates and security internally. WordPress requires active management or a maintenance contract. This is not a flaw; it is the corollary of freedom: whoever owns the code bears the responsibility.
AI and CMS Choice: A Recent Variable
AI integration into CMSs is reshuffling some cards. WordPress benefits from a rapidly expanding ecosystem of AI plugins: assisted content generation, SEO optimisation via semantic analysis, integrated chatbots, automated performance analysis. The open-source nature of the CMS allows integrating any API (OpenAI, Claude, Gemini) without restriction.
Wix has launched its ADI (Artificial Design Intelligence) to generate sites automatically and offers an AI writing assistant. Squarespace integrates a basic AI writing tool. Webflow stays focused on design and leaves AI integrations to third-party services. Shopify offers Magic for writing product descriptions.
For an SME planning gradual AI integration into its digital strategy, the question is not which CMS has the flashiest AI gadget, but which offers the flexibility to integrate tools that do not exist yet. The open architecture of WordPress holds a structural advantage here.
Why WordPress Remains the Rational Choice for Most SMEs
Choosing a CMS is not a matter of preference. It is an infrastructure decision that commits the business for three to five years. Three arguments weigh in favour of WordPress for SMEs.
Code ownership. Your site belongs to you. You can change hosting provider, service provider, or design without starting over. No SaaS platform offers this guarantee. The day Wix changes its pricing or terms, you absorb the impact. With WordPress, you decide.
The professional ecosystem. Finding a WordPress developer, a writer who knows Yoast SEO, or a specialised host: the market overflows with available talent. This abundance drives prices down and ensures you never depend on a single provider. A website redesign project on WordPress finds available resources at every stage.
Scalability. A WordPress brochure site can evolve into a WooCommerce store, a member area, a multilingual site, or a booking platform. This modularity avoids rebuilding the site when the business changes. Closed platforms impose functional ceilings that force migration when the company grows.
The right choice still depends on context. A micro-entrepreneur with no build budget who wants a site in 48 hours will find value in Wix. A pure-play e-commerce business with a 5,000-product catalogue and advanced logistics needs will consider Shopify. A creative studio wanting an animated, pixel-perfect portfolio will look at Webflow. For the SME of 5 to 50 employees wanting a professional, scalable, and SEO-optimised site, WordPress remains the most rational choice.
Frequently Asked Questions
Is WordPress free?
The WordPress.org software is free and open source. Costs cover hosting ($10 to $50 per month depending on quality), the theme ($0 to $100), premium plugins (variable), and professional build fees if you hire a developer. Do not confuse WordPress.org (the free software) with WordPress.com (a hosted platform with paid plans).
Is Wix sufficient for a local SME's SEO?
For ranking on a handful of local keywords (city name + trade), Wix covers the basics. Limitations appear when targeting an ambitious content strategy with dozens of optimised pages, structured internal linking, and granular technical markup.
Can you migrate a Wix or Squarespace site to WordPress?
Migration is possible but rarely automated. Text content is recovered manually or via limited export tools. The design is rebuilt entirely. URLs change, which requires a 301 redirect plan to preserve acquired rankings. Expect two to four weeks of work depending on content volume.
Which CMS for an SME e-commerce site?
For a catalogue under 100 products with standard needs, WooCommerce (WordPress) offers the most favourable cost-to-flexibility ratio. Beyond 500 products with advanced logistics requirements (multi-warehouse, carrier management, currencies), Shopify simplifies operational management at the price of reduced flexibility.
Is Webflow suitable for an SME without a developer?
Editing text content on Webflow remains accessible. Modifying structure, adding features, or integrating third-party tools requires technical skills. If your team does not include a technical profile, budget for ongoing agency fees or consider WordPress with a well-configured theme.
