Shumway SEO Toolkit EN

Shumway SEO Toolkit is a local-first Edge extension for page-level SEO inspection. It gives SEOs, product managers, content teams, and developers one structured workspace for reviewing the current page without accounts, analytics, tracking pixels, background crawling, or recurring data collection.
Open the toolkit on any page to inspect metadata, indexability signals, HTTP responses and redirects, Web Vitals, headings, links, images, structured data, robots rules, social metadata, styles, accessibility, SERP previews, and SEO tools.

Most analysis runs locally in Microsoft Edge. Web Vitals can optionally request Google CrUX field data and PageSpeed Insights lab diagnostics for the current URL. Responses are cached locally and can be refreshed whenever you choose.

All exports are generated locally. Save CSV, TSV, JSON, Markdown, TXT, spreadsheet, page-copy, HTTP trace, image ZIP, accessibility JSON, robots, schema, Web Vitals, or SERP preview files.

FEATURES

OVERVIEW
Review the URL, canonical, robots directives, X-Robots-Tag, title, description, language, H1, HTTP status codes, response headers, discovery signals, source-vs-rendered differences, and prioritized review items.

WEB VITALS
Capture local Core Web Vitals, compare desktop and mobile CrUX field data, explore paired history charts, distinguish URL-level data from sitewide fallback data, and run PageSpeed Insights lab diagnostics.

HTTP AND REDIRECTS
Inspect status codes, response headers, server redirects, JavaScript redirects, meta-refresh redirects, and final-response details. View status badges in the Edge toolbar, then copy or download individual hops or complete traces.

LINK CHECKING
Check large batches of URLs on demand. Review exact status codes, redirects, final destinations, retry controls, rate-limit feedback, inline status badges, filters, persistent results, and link-status exports.

HEADINGS AND LINKS
Review heading outlines, internal and external links, anchor text, rel attributes, empty anchors, and duplicate anchors. Filter, sort, select, copy, and export results.

IMAGES
Inspect images, alt-text coverage, lazy loading, missing dimensions, duplicate sources, and previews. Copy URLs, export selected rows, or download available page images as a ZIP.

STRUCTURED DATA
Detect JSON-LD, Microdata, and RDFa. Review parse status, Google rich-result guidance, warnings and errors, highlighted source lines, filters, sorting, and formatted JSON exports.

ROBOTS TOOLS
View live robots.txt, test any URL or path, compare Core, Detected, AI Search, AI Training, AI User Retrieval, and Other crawler groups, add a custom user agent, inspect matched and ignored rules, edit a local draft, and download results.

SERP PREVIEWS
Edit desktop and mobile Google-style previews, add compact rich-result modules, and download PNG or WebP images.

ACCESSIBILITY AND COLOR
Review rendered landmarks, headings, controls, images, and detected issues. Filter and sort results, expand details, copy locators, export JSON, and enable a colorblind-friendlier palette with non-color indicators.

SOCIAL AND STYLE
Inspect Open Graph and X/Twitter metadata, fonts, CSS variables, page colors, stylesheets, and local color tools.

JAVASCRIPT TESTING
Toggle JavaScript for the current site, reload the page, and compare how the page changes.

WEBMASTER AND SEO TOOLS
Open Search Console, Bing Webmaster Tools, PageSpeed Insights, Lighthouse, DebugBear, GTmetrix, backlink and rank tools, Archive.org, validators, and site or image searches.

EXPORTS
Download focused reports for issues, metadata, technical and discovery signals, HTTP traces, Web Vitals, headings, links, images, schema, robots, social metadata, styles, SERP previews, accessibility, page copy, or a full audit.

PRIVACY
Core page inspection runs locally against the active Edge tab. Shumway SEO Toolkit does not collect, sell, or transmit page-audit data to Shumway or Swifthog servers.

Web Vitals can send the current page URL to Google’s Chrome UX Report and PageSpeed Insights APIs. External tools open only when you click them.

WHAT’S NEW IN 0.1.8
Added on-demand link checking with exact HTTP statuses, redirect results, final destinations, retry controls, rate-limit feedback, inline badges, filters, persistent sessions, and exports.
Added source-linked schema diagnostics, improved robots crawler filtering and breadcrumb validation, clearer accessibility-tree locations, better issue locators, and branded settings for HTTP status capture, PageSpeed auto-run, and Web Vitals cache management.