Configure expectations
Save expected tracker vendors, identifiers, and calls to action for a hostname.
Local Safari launch QA
Verify the tags, CTAs, and page signals you meant to ship—before traffic arrives.
Compare a page with your local launch expectations, then export a bounded evidence report.
PagePreflightProduction landing page
Expected versus found on this page
✓
Google Tag ManagerGTM-WEB123 detected
Found!
Primary CTA“Start free trial” not detected
Missing✓
Canonical URLResolves to this page
Found✓
JSON-LD syntax1 parseable block
ParsedDetected in page code. This does not prove a tag fired or worked server-side.
A deployment contract, not another score.
Tell PagePreflight what should exist. Run a local audit. Export a deterministic report your team can inspect.
Scan the active page
PagePreflight inspects only the tab you authorize, only when you press Run audit.
Export evidence
Share a stable Markdown or JSON report without copying page HTML or form values.
One pass across the launch surface.
Focused checks help catch mismatches while keeping every claim narrow and inspectable.
Ten common tracker families
GTM, Google tag, Google Ads, Meta, TikTok, LinkedIn, Clarity, Hotjar, HubSpot, and Plausible signatures.
Expected actions and names
Presence, disabled state, form behavior, duplicate IDs, and supported accessible-name mechanisms.
Concrete page observations
Titles, descriptions, canonical URLs, robots directives, headings, image-alt states, social metadata, and links.
Syntax without overclaiming
Parse JSON-LD and surface basic types. PagePreflight never calls that rich-result or schema validation.
Privacy boundary
Your page stays on your device.
PagePreflight has no account, backend, AI service, or analytics beacon.
No accountNo sign-in or cloud profile is required.
No telemetryAudits and usage are not transmitted to us.
No form valuesPasswords and entered field values are never included in reports.
Active tab onlyThe extension runs after your explicit action on the page you authorize.
PagePreflight 1.0
Make the last check concrete.
Coming to Safari for Mac, iPhone, and iPad.