The biggest SEO news from April 2026

Jack highlights Google testing AI Mode directly in the “All” tab, AI Mode’s agentic restaurant bookings, AI Mode side-by-side browsing in Chrome desktop (US), and Google’s Audio Overviews appearing on SERPs beyond Search Labs.

He also discusses Google’s official guidance on building agent-friendly websites—how agents use screenshots, raw HTML, and the accessibility tree—and notes Gemini in Chrome rolling out worldwide, potentially boosting Gemini adoption.

1. Google tests AI Mode in the main search tab - https://brodieclark.com/notes/#apr-2026

2. Google Search Console impressions error - https://xcancel.com/brodieseo/status/2040311550406472112

3. Agentic restaurant bookings - https://xcancel.com/Google/status/2042626811083853857

4. AI Mode can open in side-by-side view - https://blog.google/products-and-platforms/products/search/ai-mode-chrome/

5. Google tests Audio Overviews - https://www.seroundtable.com/google-testing-audio-overviews-wild-41207.html

6. How to build agent-friendly websites - https://web.dev/articles/ai-agent-site-ux

7. Gemini in Chrome - https://www.linkedin.com/posts/nataliawitczyk_yes-gemini-integrated-in-chrome-is-now-rolling-activity-7456789716202508288-He8k/