Guides
Tool playbooks
Playbooks in tool playbooks.
Page speed comparison: a calm step-by-step playbook
Two URLs, the same Lighthouse run each, side by side. Free, no sign-up.
HTTP header inspector: a calm step-by-step playbook
Every response header for a URL, with the security and caching headers explained. Free, no sign-up.
Mixed content checker: a calm step-by-step playbook
Find HTTP resources loaded by an HTTPS page, which browsers block or warn on. Free, no sign-up.
Canonical checker: a calm step-by-step playbook
Read the canonical a page declares, and what it points at. Free, no sign-up.
Structured data extractor: a calm step-by-step playbook
Every JSON-LD entity on a page, nested and readable, with the types and properties as published. Free, no sign-up.