Observed Signal · Jul 24, 2026 · Product Launch · Source: DEV Community · Impact: 2/5 · Sentiment: Positive
Open-source Claude Code SEO auditor with Google/Bing scores
An individual developer, Eduardo Monteiro, open-sourced "SEO Rank Audit": a Claude Code skill that audits websites and produces 0–100 scores per SEO criterion separately for Google and Bing. The tool collects site structure, fetches real Core Web Vitals via the public PageSpeed Insights API, and can optionally pull Bing Webmaster Tools data with the user's API key. The project is published on GitHub under the MIT license and installs as a Claude Code CLI plugin. The author emphasizes verifiable measurements only (marking unverifiable items as "unverified") and welcomes feedback and PRs on scoring weights.
Open-source release of an SEO auditing tool that provides separate Google/Bing scoring and integrates verifiable signals (PageSpeed Insights, optional Bing Webmaster Tools). Useful to SEO practitioners and publishers but not a major platform policy or industry-shifting announcement.
Track Google Signals & Market Shifts in Real-Time
Polaris7 autonomous intelligence agents track regulatory filings, primary sources, executive changes, and deal flow 24/7. Create your free Explorer workspace to monitor these entities.
Key Takeaways & Evidence Grounding
- Eduardo Monteiro published an open-source Claude Code skill named "SEO Rank Audit" on 2026-07-24.
- The tool audits sites and generates 0–100 scores per criterion separately for Google and Bing based on documented ranking factors.
- It collects structural site data (titles, meta tags, headings, canonical, structured data, robots.txt, sitemap, HTTPS, alt text, internal links, sponsored-link attributes) across the homepage and internal pages.
- It retrieves Core Web Vitals (LCP, CLS, INP) using the public PageSpeed Insights API (CrUX field data when available, Lighthouse lab data as fallback).
- Bing Webmaster Tools data is optional and requires the user's own API key; project code is hosted on GitHub under an MIT license.
Connected Companies & Entities
6 Entities mapped“So I wrote SEO Rank Audit — an open source Claude Code skill that audits any site and scores it 0-100 per criterion, separately for Google a...”
“So I wrote SEO Rank Audit — an open source Claude Code skill that audits any site and scores it 0-100 per criterion, separately for Google a...”
“DEV Community — A space to discuss and keep up software development and manage your software career...”
“Powered by Algolia...”
“Try Bitrise free and feel the DevOps difference today!...”
“Code: https://github.com/ducrz/seo-audit-marketplace (MIT)...”
Ontology Mapping & Concepts
Related Market Signals & Shifts
Recent verified developments and strategic activity across this market segment.
Developer Releases Free Open-Source Browser SEO Checker
Adil Makhdoom published a free, open-source SEO checker that runs entirely in the browser and performs 20+ audits across technical SEO, on-page SEO, social/schema, and performance. The tool is distributed as three static files (index.html, style.css, script.js), requires no signup or API keys, and uses the allorigins.win CORS proxy to fetch page HTML client-side. Performance metrics (PageSpeed mobile score, LCP, CLS, TBT) are pulled from Google’s PageSpeed Insights API v5. Results show pass/warning/fail status, the measured value, and a short remediation tip; audits can be exported to CSV. The project is published with a live demo and a GitHub repository, and the author invites contributions and pull requests.
Open-source Claude Code plugin replaces $500/mo SEO tools
The author built toprank, an open-source Claude Code plugin (MIT) that automates Google Ads audits, SEO audits, keyword research, RSA ad-copy generation, and publishing to WordPress/Strapi/Contentful/Ghost. The project replaced roughly $500/month of paid tools. The post focuses on engineering patterns: split functionality into 15 single-purpose skills (one task per skill) to reduce hallucinations, let Claude route to the right skill by exposing all skill descriptions, enforce a "propose-then-confirm" pattern for any state-changing operations, wrap the Google Ads API behind a small MCP server with clean endpoints, and apply hard numeric bounds for bid/budget changes. The repo is available at github.com/nowork-studio/toprank (MIT). The author also describes adding a cross-model "second opinion" (Gemini) and lists lessons on evals, versioning, and logging.
Free SEO + AI-Search (GEO) Audit Tool Released
Developer Ravi Gupta published a free, open-source SEO and AI-search (GEO) audit tool at freeseoaudit.vercel.app. The tool runs without signup or crawl limits and streams reports across 40+ checks in eight categories, including metadata, JSON-LD structured data, crawl & indexing, Core Web Vitals, security headers, and GEO/AEO-specific checks. GEO checks validate llms.txt, detect accidental blocking of AI crawlers (e.g., GPTBot, ClaudeBot, PerplexityBot), evaluate paragraph self-containment (the "Island Test"), and surface direct-answer and E-E-A-T signals. The app uses Next.js 15 and React 19 on Vercel, with a Node/Express TypeScript backend on Render and optional Playwright rendering; code is available on GitHub.
Track Real-Time Market Signals & Shifts
Set up custom watchlists to receive automated, evidence-grounded executive digests whenever material signals or shifts occur across your tracked landscape.
