AI systems, Toronto data tools, GEO experiments, and VR research.
I'm Joshua Opolko, a builder and writer in Toronto. I run live experiments and publish the receipts: the GEO Field Manual, and the Toronto data tools below, all self-hosted and refreshed daily.
Which AIs are reading this site, and what they fetch
Every AI assistant and search crawler that hits joshuaopolko.com lands in the raw server logs. The GEO Observatory reads them back: who fetches what, which pages get pulled into live answers, and whether the bot is the real thing or an impostor wearing its name.
Local Tools
Live Toronto datasets I build and run, each rebuilt daily from official sources.
NowServingTO
Daily-fresh directory of newly licensed Toronto restaurants, classified by cuisine.
Kids Events Toronto
Curated daily directory of distinctive Toronto kids and family events, museums, nature, festivals and more.
HomeTurf
Toronto neighbourhood income-stability data for families choosing where to put down roots.
AI & GEO
Case studies and field notes on getting cited by AI, written from systems I actually operate.
Optimizing for AI Citation
GEO replaces click optimization with citation optimization, what that means in practice.
Site as AI Infrastructure
How to become a trusted source for ChatGPT and Claude, with real bot traffic data.
LLM-as-ETL Architecture
Building a data pipeline around Claude instead of bolting it on.
Claude Code Spec Workflow
A spec-driven MCP workflow for turning requirements into clean, tested code.