The Professor's SEO Report Card

by The Laughing Professor · laughingprofessor.net · Developer Tools

Established publisherManifest V3 Free

View in Chrome Web Store Data as of 16 Oct 2026

Free website grader - 18 SEO checks across Content, Technical, UX, Social, Security and Google Ecosystem.

Users

−1 in 30 days

Rating

0.0 / 5

unchanged in 30 days

Ratings

0 in 30 days

Store rank

#254K

#213K among extensions

Version

10.0

updated 7 Aug 2026

Users

monthly, 5 months

Latest, 16 Oct 2026: 5 usersMove the mouse over the chart for any month

Ratings count

monthly, 5 months

Latest, 16 Oct 2026: 0 ratingsMove the mouse over the chart for any month

The Chrome Web Store rounds user counts down to the leading digit, so the user line moves in steps. The ratings count is exact and is the better signal of real adoption.

About The Professor's SEO Report Card

The Professor's SEO Report Card — instant, on-page SEO grading for any website. Built by LaughingProfessor.net, the same engine behind the #1 free website grader used by web designers, SEO professionals, and small business owners worldwide. Click the icon on any webpage and get a lettered grade (A–F) plus a scored breakdown. 📝 CONTENT & ON-PAGE SEO Title tag length, meta description, H1 heading structure, image alt text, body word count, content-to-HTML ratio, page size ⚙️ TECHNICAL SEO HTTPS, mobile viewport, canonical URL, robots meta, favicon, robots.txt, sitemap.xml, Web Manifest (PWA), Service Worker, llms.txt (AI discoverability), IndexNow, hreflang/multi-region tags 🔗 UX & NAVIGATION Internal link count, CTA button detection, page weight 📱 SOCIAL & RICH RESULTS Open Graph tags (title, description, image), Twitter Cards, JSON-LD structured data types 🔒 SECURITY Live security header audit — HSTS, Content-Security-Policy, X-Frame-Options, X-Content-Type-Options, X-XSS-Protection, Referrer-Policy, and Permissions-Policy, checked directly against the page you're on 🔍 GOOGLE ECOSYSTEM Google Analytics 4 / Tag Manager detection, Search Console verification tag, Google Business Profile signals (LocalBusiness schema, Maps embed) 📋 OVERVIEW Instant grade, pass/warn/fail summary, and a prioritized issues list so you know exactly what to fix first Every tab includes direct links to The Professor's free SEO tools and modular fix services — so you can act on results immediately. ✏️ Non-intrusive. No login. No data stored. Analysis runs entirely in your browser.