Tony Castillo

About Tony Castillo

Tony Castillo is an AI Visibility Engineer and the founder of WISLR, where he builds tools and strategies that help brands get discovered by AI platforms.

His background spans two decades of technical SEO, from large-scale website migrations and 301 redirect mapping to structured data architecture and crawl optimization. That foundation now drives his work in AI visibility: understanding how AI systems crawl, index, and cite web content, and building the infrastructure to make sure the right content gets surfaced.

What I Work On

• AI Channel Analytics Tracking how brands appear across ChatGPT, Perplexity, Google AI Overviews, and other AI platforms
• Crawl Infrastructure Building pipelines that analyze how AI bots interact with websites, including server log analysis, render comparison, and schema validation
• Structured Data Strategy Designing JSON-LD and schema.org implementations that help AI systems understand content accurately
• Website Migrations Protecting organic search traffic during platform changes with comprehensive redirect strategies and crawl monitoring
• LLM Readiness Scoring Evaluating how well website content is optimized for ingestion by large language models and RAG pipelines

Recent Writing

Tony writes about the technical details behind AI visibility, web crawling, and search optimization on the WISLR Articles page. Recent topics include Cloudflare crawl endpoint benchmarking, AI bot traffic analysis, and server-side effects of browser-rendered crawling on Shopify stores.