Performance & Authority Tools
🏠 Overview
⚡ Page Speed
⚔️ Competitor Analysis
🔗 Internal Links
🌐 Backlinks
🕷 Site Crawler
📊 CLS & CSS Linter
♿ Accessibility
Page Speed Analyzer Bronze+
Real Google PageSpeed Insights data — actual Lighthouse scores with full CWV metrics and actionable improvement opportunities.
Google API powered
⚔️
Competitor Analysis Gold+
Compare your site's SEO side-by-side against up to 3 competitors — scores, issues, title/description, schema and more.
Side-by-side audit
🔗
Internal Link Analysis Bronze+
Analyse all internal links on any page — anchor text quality, link structure, nofollow usage and SEO improvement suggestions.
Link equity
🌐
Backlink Tools Silver+
Free backlink checker integrations, outbound link audit and AI-generated link building strategy for your niche.
Link building
🕷
Site-Wide Crawler Silver+
Crawl up to 50 pages and get a full SEO audit across every page — issues, scores and a prioritised fix list.
Up to 50 pages
📊
CLS Debugger & CSS Linter Bronze+
Diagnose layout shift causes on any URL, and lint your CSS for errors, performance issues and best practice violations.
CWV & code quality
Accessibility Checker Free
WCAG 2.1 compliance analysis — checks contrast ratios, ARIA labels, keyboard navigation and screen reader compatibility.
WCAG 2.1
Speed × Authority × Accessibility

Core Web Vitals are a confirmed Google ranking factor — pages with poor LCP, CLS or INP will be disadvantaged against equally-relevant competitors.

Authority tools help you understand your competitive position and find link building opportunities that actually move the needle.

  • LCP should load in under 2.5s on mobile
  • CLS under 0.1 prevents ranking penalties
  • Internal links distribute PageRank across your site
  • Accessibility issues can also be SEO issues
  • Competitor gaps reveal quick-win opportunities
Powered by Google PageSpeed Insights API Server Side

Real Google Lighthouse data for any URL. The API key is stored securely on the server — no setup needed.

Analyze URL Bronze+

Enter a URL and click Test Speed to get real Google PageSpeed data

Core Web Vitals — Thresholds
MetricGoodNeeds WorkPoorWhat It Measures
LCP — Largest Contentful Paint≤ 2.5s2.5–4s> 4sLoading performance of largest visible element
FID / INP — Interaction to Next Paint≤ 200ms200–500ms> 500msResponsiveness to user input
CLS — Cumulative Layout Shift≤ 0.10.1–0.25> 0.25Visual stability & layout shifts
FCP — First Contentful Paint≤ 1.8s1.8–3s> 3sWhen first content appears on screen
TTFB — Time to First Byte≤ 800ms800ms–1.8s> 1.8sServer response time
TBT — Total Blocking Time≤ 200ms200–600ms> 600msJavaScript blocking the main thread
Enter URLs to Compare Gold+

Enter your site and up to 3 competitor URLs. We'll crawl all of them and compare SEO performance side by side.

YOUR SITE
COMPETITOR 1
COMPETITOR 2
COMPETITOR 3
Start Crawl Silver+

Enter your homepage URL. The crawler follows internal links and audits each page it finds.

Analyse Layout Shift Bronze+

Fetches the page and identifies elements likely to cause CLS

📊

Enter a page URL above to diagnose CLS causes

HTML Source Free
🔗 From URL
📋 Paste HTML