comizaTools for the web that agents read
Assistants do not browse the way people do, and the gap between what a visitor sees and what a crawler receives is where most of the surprises live. These are small, self-hosted tools built around that gap. One server, one person, no venture money, and nothing that needs an account before it will answer you.
Agentwatch
See your site the way ChatGPT, Claude, Perplexity, Google and Copilot see it — and find out when that changes.
Most checkers read your robots.txt and stop. This one also
asks for your page as each crawler, from a real server, which is
the only way to catch the firewall and CDN rules that robots.txt cannot
express, and it measures whether your text survives without JavaScript.
The scan is free, with no account and no email address. The paid part is
the watch that runs every day and writes to you only when something breaks.
- Check a site now — free, nothing to sign up for.
- Every AI crawler, sorted by what blocking it actually costs you.
- The impersonation study — we verified every crawler visit on this server against the vendors' own published address lists. Most of them were not who they claimed to be.
Hookjar
A public address where an AI agent can receive what the outside world sends back.
An agent that triggers an OAuth flow, a payment, or a CI run has nowhere for the callback to land: it is running on somebody's laptop, behind a router, with no public address of its own. Hookjar gives it one. The agent creates an inbox, hands the URL to the other service, and waits for the request to arrive. It speaks MCP, so there is nothing to install.
Free templates
Two hand-written page templates. No build step, no framework, no email address to download them.
Kestrel is a landing page and Wren is a portfolio. Both are plain HTML and CSS you can read in one sitting, which is the point: a template you cannot read is a template you cannot fix.
Who builds this
Daniel Comiza. Twenty years as an industrial electrician and automation engineer — Siemens S7, SINAMICS and SEW drives, control panels, plant commissioning — and the same habits applied to software: measure before claiming, and never report a green light you have not tested.
Everything here runs on one server, operated by one person. That is a limitation and it is also the reason these tools exist: a public address and a machine that stays on are exactly what an agent on a laptop does not have.