As of: 19 June 2026 · Reading time: 5 min
Key takeaways
- SEO is not just content.
- As a developer, you have massive influence on ranking.
- Learn everything about Core Web Vitals, Semantic HTML and structured data.
SEO is not just content. As a developer, you have massive influence on ranking. Learn everything about Core Web Vitals, Semantic HTML and structured data.
“Your website is today’s shop window—saving here means saving in the wrong place.”
– Björn Groenewold, Managing Director, Groenewold IT Solutions
You think SEO is a marketing team job? Wrong thought. Google loves fast, clean and structured code.
Technical SEO is the foundation of every successful website. If the technology is not true, the best content does not help. Here is your guide to build websites that Google loves.
1. Core Web Vitals: Speed is King
Short: Executive answer: SEO is not just content.
Executive answer: SEO is not just content. As a developer, you have massive influence on ranking.
For SEO for web developers: Technical optimization beyond keywords, see View services und Discover solutions on our website for implementation paths and planning.
Google measures the user experience using three metrics:
LCP (Largest Contentful Paint): How fast does the main content charge? (Objective: < 2.5s)
INP (Interaction to Next Paint): How fast does the page respond to clicks? (Objective: < 200ms)
CLS (Cumulative Layout Shift): Jumps the layout when loading? (Objective: < 0.1)
Tip: Use Next.js Image Component or img srcset for responsive images to improve LCP.
2. Semantic HTML
Forget the Div soup. Use HTML tags as they are meant. This helps screen readers and search engines understand your structure.
About the author
Managing Director of Groenewold IT Solutions GmbH and Hyperspace GmbH
Since 2009 Björn Groenewold has been developing software solutions for the mid-market. He is Managing Director of Groenewold IT Solutions GmbH (founded 2012) and Hyperspace GmbH. As founder of Groenewold IT Solutions he has successfully supported more than 250 projects – from legacy modernisation to AI integration.
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