Shumway SEO Toolkit by Brian Shumway

Shumway SEO Toolkit is a local-first Firefox extension for page-level SEO inspection. It gives SEOs, product managers, content teams, and developers a structured workspace for the current page, with no accounts, no analytics, no tracking pixels, and no background crawling.

Open the toolkit on any page to inspect rendered metadata, indexability signals, headings, links, images, structured data, social metadata, page styles, accessibility structure, SERP previews, robots.txt behavior, technical signals, and webmaster-tool shortcuts.

All exports are generated locally in your browser. Save page data as CSV, TSV, JSON, Markdown, image ZIP files, accessibility JSON, robots test results, or SERP preview images.

FEATURES

🔍 Overview
Current URL, canonical URL, robots meta, X-Robots-Tag, title, description, language, H1, HTTP response signals, technical details, discovery signals, and review items in one workspace.

📋 Headings and Links
Rendered heading outline, internal and external link data, rel attributes, empty anchors, duplicate anchors, filters, sorting, copy controls, and selected-result downloads.

🖼 Images
Rendered image list, alt text coverage, lazy loading, missing dimensions, duplicate sources, URL copy, image downloads, filters, sorting, data exports, and ZIP download.

🗂 Structured Data
JSON-LD, Microdata, and RDFa detection, schema block copy/export, local parse status, Google warning/error guidance, highlighted issue lines, and pretty JSON output.

✏️ SERP Previews
Editable desktop and mobile previews, rich-result-style modules, compact enhancement controls, and PNG/WebP downloads.

🤖 Robots Tools
View live robots.txt, test any URL or path, use grouped crawler selections, add a custom user-agent, review matched rules, and download test results.

🛠 Webmaster Shortcuts
Open Google Search Console and Bing Webmaster Tools domain/property, indexing, inspection, and performance views for the current site.

♿ Accessibility and Style
Rendered accessibility tree with JSON export, accessible color palette support, colorblindness-friendly UI options, fonts, CSS variables, page colors, stylesheet details, and local color tools.

📤 Flexible Exports
Export full page audits or selected datasets, including issues, metadata, technical signals, discovery signals, headings, links, images, schema, robots, social metadata, style data, and accessibility data.

PRIVACY 🔒
Page data is read locally from the active tab only when you use the extension. The toolkit does not collect, sell, transmit, or share user data. External lookup buttons open third-party websites only when you click them.