https://chrishumphrey.ai/blog Field notes and essays on SEO, GEO, and AI search by Chris Humphrey. en-us https://chrishumphrey.ai/blog/ai-search-visibility-metrics https://chrishumphrey.ai/blog/ai-search-visibility-metrics Thu, 23 Jul 2026 00:00:00 GMT Measurement The KPIs that measure whether ChatGPT, AI Overviews, Perplexity and Gemini cite your brand. What each metric tells you, what the data shows, and which ones are worth tracking. https://chrishumphrey.ai/blog/what-is-rag-ai-search https://chrishumphrey.ai/blog/what-is-rag-ai-search Tue, 14 Jul 2026 00:00:00 GMT AI Search RAG is the retrieval step behind every AI answer engine. Here is how it works, and what 1.2 million citations show about the pages it actually quotes. https://chrishumphrey.ai/blog/history-of-ai-search https://chrishumphrey.ai/blog/history-of-ai-search Thu, 09 Jul 2026 00:00:00 GMT AI Search A visual history of AI search, from BERT to AI Mode. The key players, the moments that actually mattered, and how Google, OpenAI, Perplexity and the rest turned ten blue links into a single cited answer. Every date sourced. https://chrishumphrey.ai/blog/griddle-sizzle-astro-migration https://chrishumphrey.ai/blog/griddle-sizzle-astro-migration Wed, 01 Jul 2026 00:00:00 GMT Technical SEO A client case study: moving an 88-post WordPress blog to a static Astro site on Cloudflare for about a dollar a month. How I kept every URL, moved the forms off SaaS, and why I checked the live site instead of trusting the brief. https://chrishumphrey.ai/blog/seo-trends-2026 https://chrishumphrey.ai/blog/seo-trends-2026 Tue, 23 Jun 2026 00:00:00 GMT Guides A practitioner's 2026 SEO trends report that grades the loud 2025 predictions against the data: what AI Overviews, AI Mode, and core updates actually changed, what got overhyped, and what to do about it. https://chrishumphrey.ai/blog/ai-overviews-vs-classic-seo https://chrishumphrey.ai/blog/ai-overviews-vs-classic-seo Sun, 21 Jun 2026 00:00:00 GMT AI Search AI Overviews did not kill SEO, they split it into two jobs: ranking on the page and getting cited in the answer. What changed, what stayed the same, and how to earn the citation. https://chrishumphrey.ai/blog/how-google-search-is-trending-2026 https://chrishumphrey.ai/blog/how-google-search-is-trending-2026 Sat, 20 Jun 2026 00:00:00 GMT AI Search Google made AI Mode the default at I/O 2026. Here's what that actually changes for SEO: how search behavior, the results page, and measurement shift when search becomes a conversation. https://chrishumphrey.ai/blog/seo-trends-2025-what-everyone-got-wrong https://chrishumphrey.ai/blog/seo-trends-2025-what-everyone-got-wrong Sat, 20 Jun 2026 00:00:00 GMT AI Search The 2025 SEO prediction that dominated every conference and aged the worst: that AI search would replace Google by now. What the data actually showed, and the lesson for 2026. https://chrishumphrey.ai/blog/seo-trends-im-ignoring-2026 https://chrishumphrey.ai/blog/seo-trends-im-ignoring-2026 Fri, 19 Jun 2026 00:00:00 GMT Content Strategy Not every trend deserves your time. Five SEO tactics getting loud airtime in 2026 that I'm deliberately skipping, with the data behind each call, so you can spend effort where it moves rankings. https://chrishumphrey.ai/blog/how-seo-changed-2023-to-2026 https://chrishumphrey.ai/blog/how-seo-changed-2023-to-2026 Thu, 18 Jun 2026 00:00:00 GMT Content Strategy A short history of how SEO shifted from 2023 to 2026: the Helpful Content era, the arrival of AI Overviews, AI Mode going default, and the one fundamental that never moved. https://chrishumphrey.ai/blog/llms-txt-guide https://chrishumphrey.ai/blog/llms-txt-guide Thu, 18 Jun 2026 00:00:00 GMT AI Search What llms.txt is, what goes in it, whether Google uses it (it doesn't), who actually reads it, and how to write a good one. Updated for Google's June 2026 guidance. https://chrishumphrey.ai/blog/how-to-spot-real-seo-trends https://chrishumphrey.ai/blog/how-to-spot-real-seo-trends Wed, 17 Jun 2026 00:00:00 GMT Content Strategy A repeatable framework for telling real SEO trends from clickbait predictions: the questions to ask, the data to demand, and the tells that a 'trend' is just someone's hype cycle. https://chrishumphrey.ai/blog/ai-search-geo-panel-notes https://chrishumphrey.ai/blog/ai-search-geo-panel-notes Mon, 15 Jun 2026 00:00:00 GMT AI Search Key takeaways from an AZIMA panel on AI search, GEO, authority signals, zero-click discovery, and measuring visibility beyond rankings.