# Sky Vista SEO Inspector — Browser Extension

Instant on-page SEO audit for any URL you visit. Runs 100% locally in the browser — no data leaves your machine.

## Features

- **Overview** — On-page SEO grade (A–F) with prioritized issues + fixes
- **Headings** — Full H1–H6 outline with structural warnings (multiple H1s, missing H1, etc.)
- **Meta** — Open Graph, Twitter Cards, hreflang, viewport, lang, charset
- **Schema** — Pretty-printed JSON-LD structured data with `@type` summaries
- **Links** — Internal/external/nofollow counts, suspicious hrefs, image alt coverage

## Install (unpacked — Chrome / Edge / Brave)

1. Open `chrome://extensions` (or `edge://extensions`)
2. Toggle **Developer mode** (top right)
3. Click **Load unpacked**
4. Select the `extension/` folder from this directory

The Sky Vista SEO Inspector icon will appear in your toolbar. Click it on any page to run an instant audit.

## Install (Firefox)

1. Open `about:debugging#/runtime/this-firefox`
2. Click **Load Temporary Add-on**
3. Select `extension/manifest.json`

Firefox unloads temporary extensions on browser restart. To install permanently, the extension needs to be signed via [addons.mozilla.org](https://addons.mozilla.org).

## What gets read

The extension scrapes the active tab's DOM when you click the icon:

- `<title>`, `<meta name="description">`, `<meta name="robots">`
- `<link rel="canonical">`, `<link rel="alternate" hreflang="...">`
- All `<h1>`–`<h6>` headings (text + count)
- All `<meta property="og:*">` and `<meta name="twitter:*">` tags
- All `<script type="application/ld+json">` blocks
- Link counts (internal / external / nofollow), image alt coverage
- Word count, document size

No HTTP requests, no telemetry, no API calls. The audit runs synchronously in the page context and renders in the popup.

## Why this exists

Built for the Sky Vista SEO Hub agency platform — operators use this when scouting prospects, auditing client pages, and reviewing competitor content without leaving the browser. The same audit logic powers the [Tech SEO Tools](https://seohub.skyvistaconsulting.com) section of the Hub.

## License

Free for use by Sky Vista Consulting clients and their internal teams.
