Avoiding SEO Pitfalls in Modern JavaScript Frameworks

These slides are from a presentation given at the International Search Summit Barcelona 2025. Building a website for a global audience is tough, and modern JavaScript frameworks can potentially throw a spanner in the works for SEO. Getting your international strategy right is about more than just adding a few hreflang tags – especially when JavaScript is running the show. In these slides, Will Kennard from Very Good gets straight to the common traps that JavaScript developers fall into, highlighting some key points for SEOs to understand and better communicate with developers. He explores why rendering strategy is so critical for localized content and looks at how different frameworks handle the challenge, with specific framework features being highlighted – particularly useful for those working with multiple websites across multiple clients internationally.

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