Platform choice shapes your SEO ceiling. A Shopify store can dominate its category with careful technical SEO, but it cannot change Shopify's URL structure. A WordPress site has the most flexible plugin ecosystem available, but requires ongoing maintenance that many teams cannot sustain. Wix has improved dramatically, but its JavaScript overhead creates real trade-offs in competitive niches. This guide compares SEO capabilities across Webflow, Shopify, Ghost, Squarespace, and Wix, giving you the information you need to choose the right platform for your ranking goals or to understand the constraints of the one you are already on.
Definition
Platform SEO capability refers to the combination of built-in SEO features, architectural constraints, and extensibility options that determine how effectively a website built on a given platform can be optimised for search engine visibility.
The website builder market reached $3.95 billion in 2024 and is projected to grow to $23 billion by 2031 at a CAGR of 28.6%, according to Cognitive Market Research via squarecode.promo. Wix leads with 40% market share (8.5 million sites), Squarespace holds 25% (5.3 million), and Shopify powers 5.2 million e-commerce sites at 19% share.
76%
Core Web Vitals pass rate for Shopify, the highest of any major platform
Source: Looker Studio data via squarecode.promo
Webflow targets designers and developers who want full visual control with clean code output. It has strong technical SEO defaults and is CMS-capable for content-heavy sites.
Shopify is the dominant e-commerce platform, with built-in product schema, a CDN-backed infrastructure, and a large app ecosystem for SEO tooling.
Ghost is a publishing-focused platform, fast by default, with canonical tags, sitemaps, and structured data out of the box. It has a smaller ecosystem but a focused, well-maintained codebase.
Squarespace is a design-first platform targeting small businesses and creatives. It has improved its technical SEO significantly in recent years but has notable limitations in URL control and custom code flexibility.
Wix is the largest website builder by site count. It has invested heavily in performance and now passes Core Web Vitals for the majority of its sites. Its JavaScript runtime remains a consideration for competitive niches.
| Feature | Webflow | Shopify | Ghost | Squarespace | Wix |
|---|---|---|---|---|---|
| Custom meta titles/descriptions | ✓ | ✓ | ✓ | ✓ | ✓ |
| Custom URL slugs (full path) | ✓ | Partial | ✓ | Partial | ✓ |
| Custom structured data (JSON-LD) | ✓ | ✓ | Via code injection | Limited | Via Custom Code |
| Auto XML sitemap | ✓ | ✓ | ✓ | ✓ | ✓ |
| Canonical tags | ✓ | ✓ | ✓ | ✓ | ✓ |
| 301 Redirects | ✓ | ✓ | ✓ | ✓ | ✓ |
| Robots.txt access | ✓ | ✓ | Via config | Limited | ✓ |
| Internal link analysis tooling | Via Linki | Via Linki | Via Linki | Via Linki | Via Linki |
| Image optimisation (auto) | ✓ | ✓ | Ghost Pro only | ✓ | ✓ |
| HTTPS (auto) | ✓ | ✓ | ✓ | ✓ | ✓ |
Internal linking is the SEO factor most consistently overlooked in platform comparisons. Every platform supports the ability to create hyperlinks between pages. What differs is the tooling, automation, and audit capability around those links.
As Ahrefs states in their SEO Basics guide: "Internal links help search engines find pages, pass PageRank, provide context." And according to Google's SEO Starter Guide: "Use links to connect users and search engines to other parts of your site; good anchor text describes the content of the linked page."
Definition
PageRank is Google's algorithm for measuring the importance of web pages based on the quantity and quality of links pointing to them. Internal links distribute PageRank between pages on the same site. Pages with more internal links pointing to them are treated as more important and tend to rank higher.
Here is how each platform handles internal linking:
Webflow: No built-in internal link suggestions. Manual linking via CMS templates (Collection Lists create automatic structural links). Linki provides audit capability. See the Webflow Blog SEO guide for setup instructions.
Shopify: Blog-to-collection and cross-collection links are manual. The platform has no internal link analysis. App ecosystem includes some SEO apps but none focused purely on internal link analysis. Linki fills this gap. See the Shopify SEO guide for a full internal linking strategy.
Ghost: Related posts via theme helper ({