Write an SEO audit checklist in {{tone}} tone for {{target_audience}} in the {{industry}} industry with the goal to {{goal}}, focusing on site architecture. Every recommendation must be specific to {{industry}} and actionable by {{target_audience}}.

Checklist covering:
- Crawlability and Indexation (robots.txt, XML sitemap, indexation health)
- Site Architecture (URL structure, internal linking, site hierarchy)
- Page Speed and Core Web Vitals (performance metrics, optimization)
- Mobile SEO
- Structured Data
- Security and Trust
- Action Plan Template (priority matrix, issue categorization, assignee, verification)

Maximum 1000 words. Output format: Actionable checklist with checkboxes, brief explanations, and grouped items.

Paste any relevant background information after these instructions before running.