Charles (Charlie) Coxhead on SEO, AI and web development. Over 20 years building websites and brands online in New Zealand, Australia, the U.S. and China. Now back in Auckland.https://charlescoxhead.com/en-nzhttps://charlescoxhead.com/experiments-in-local-lead-gen/https://charlescoxhead.com/experiments-in-local-lead-gen/Since moving back to Auckland I've been testing a performance-based approach to local lead generation, starting with a new site for Emergency Glass Repair.Sat, 26 Sep 2026 00:00:00 GMTWeb Devhttps://charlescoxhead.com/how-to-calculate-seo-roi/https://charlescoxhead.com/how-to-calculate-seo-roi/A practical guide for marketing managers who need to evaluate, justify, and track SEO investment.Wed, 22 Apr 2026 00:00:00 GMTSEOhttps://charlescoxhead.com/in-the-future-everyone-will-be-a-web-developer-for-15mins/https://charlescoxhead.com/in-the-future-everyone-will-be-a-web-developer-for-15mins/I built EasyCalc.tech end to end with AI, combining vibe coding and programmatic SEO, to see if I could make something actually useful.Wed, 22 Apr 2026 00:00:00 GMTAIWeb Devhttps://charlescoxhead.com/querylens-page-topic-relevancy-scoring/https://charlescoxhead.com/querylens-page-topic-relevancy-scoring/QueryLens is a Chrome extension I made to analyze topical relevance of pages to the target keywords.Tue, 24 Mar 2026 00:00:00 GMTSEO