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Fourteen tools, and one report you can send

Baselumen’s tools audit a live page for SEO, accessibility, security headers, schema and speed, or fix what you paste. Every run is saved, and every graded report exports as a branded PDF.

The Baselumen team

2 min read

Baselumen’s Advanced Audit in its window: an overall score of 76 with SEO, accessibility, security headers, schema, maintainability and speed scores, beside the words “Fourteen tools, one report.”
On this page
  1. One URL, every audit
  2. The nine URL audits
  3. The five instant tools
  4. Where to find it

Baselumen's tools are 14 working tools in one catalogue. Nine take a URL and grade a live page; five run in your browser on what you paste. Every run is saved to your workspace, and every graded report prints or downloads as a branded PDF you can send to a client.

One URL, every audit

Advanced Audit grades one URL with every audit at once:

  • SEO: titles, meta, canonical, JSON-LD and robots
  • Accessibility: the axe-core WCAG rules, run through Lighthouse
  • Security headers: HSTS, CSP, frame and content options
  • Structured data: JSON-LD checked against schema.org and Google's rich-result requirements
  • Maintainability: class naming, selector depth and CSS caching
  • Speed, if you include it: Core Web Vitals, lab and field, which adds 30 to 60 seconds

The overall score is the mean of the graders. Every failing check across all of them is listed worst first, and each grader is saved as its own run, so you can open any of them afterwards.

The nine URL audits

Advanced Audit, SEO + AEO Audit, Open Graph Preview, Schema Validator, Accessibility Audit, Site Maintainability Audit, Speed Test, Landmark Map and Security Headers. Each fetches the live page, takes a few seconds and counts towards your monthly allowance.

Open Graph Preview renders any URL the way Slack, iMessage, Twitter, LinkedIn, Discord and Google would.

The five instant tools

JSON-LD Generator, robots.txt + llms.txt, Contrast Checker, Embed Sizer and Tailwind → CSS. They run in your browser and finish at once:

  • Contrast Checker gives the ratio, whether it passes, and a one-click fix that stays on brand.
  • robots.txt + llms.txt decides what may index your site, cite it or train on it, across 34 named crawlers.
  • Embed Sizer minifies pasted HTML, CSS and JavaScript and gives the real character count and its gzipped size.

Where to find it

  • Every tool is a card at Tools in Baselumen, filtered by whether it needs a URL, and narrowed by category.
  • baselumen.com/tools shows an audit running from start to finish.
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