Free Website Audit Tools, Calculators & Resources
Deterministic utilities and interactive tools built by Prospetra engineers. Verify your website health, estimate SEO revenue impact, assess accessibility compliance, and generate evidence-backed proof without paywalls or forced registration.
Interactive Suite
Explore Free Utilities
All tools operate on deterministic web standards — HTML5, WCAG 2.2 AA, and Google Core Web Vitals.
Free Website Audit Tool
Run an automated, deterministic audit of your website across SEO, Core Web Vitals, accessibility, and security with zero signup required.
- 47+ deterministic verification checks
- Sub-second TTFB & Core Web Vitals metrics
- Exportable findings & prioritized fix checklist
Accessibility Badge Generator
Demonstrate your commitment to digital inclusion. Audit your website for accessibility and embed a live, verifiable compliance badge in your footer.
- Automated WCAG 2.2 AA contrast & structure audit
- Instant copy-paste HTML/SVG embed code
- Dynamic verification link tied to audit proof
Interactive SEO ROI Calculator
Model projected revenue uplift from fixing technical SEO errors, improving click-through rates, and capturing high-intent organic search traffic.
- Real-time sliders for monthly visits & order values
- Deterministic conversion multiplier formula
- Estimates for 6-month & 12-month organic revenue
ADA Compliance Risk Assessment
Take our 60-second interactive compliance quiz to determine your website's exposure to ADA Title III and European Accessibility Act (EAA) enforcement.
- 4-point risk factor evaluation
- Identifies common high-liability accessibility flaws
- Immediate risk tier score and remediation advice
Website Fix & Speed Diagnostic
Diagnose slow page loads, broken layout shifts, failing Core Web Vitals, and indexing barriers, then get concrete code remedies.
- Core Web Vitals remediation (LCP, INP, CLS)
- Redirect chain & crawl error resolution
- Turnaround scopes backed by verification audits
Engineering & SEO Field Guides
Browse our comprehensive collection of peer-reviewed engineering playbooks covering technical SEO, performance budgets, and accessibility compliance.
- 47-point master website audit checklist
- Step-by-step Search Console indexing recovery
- Manual WCAG 2.2 keyboard & screen-reader protocols
Need Done-For-You Execution?
From Automated Evidence to Production Code
Our engineering team remedies identified issues with zero guesswork. We write the code, fix the indexing roadblocks, optimize Server Components, and verify improvements with re-audits.