GuardianScan

Find out why your site is slow, not ranking, or inaccessible—50 checks in 45 seconds with specific fixes

Industry: SaaS

Timeline: Early 2025

GuardianScan - Find out why your site is slow, not ranking, or inaccessible—50 checks in 45 seconds with specific fixes

The Challenge

After conducting 500+ website audits between 2010 and 2025, a pattern emerged: modern frameworks were evolving faster than audit tools. Lighthouse checks performance. WAVE covers accessibility. Screaming Frog handles SEO. But no single tool checked what actually matters in 2025—Core Web Vitals, WCAG 2.2, framework-specific issues, and semantic HTML for AI search engines. Developers and agencies needed something that could check all of this in under 60 seconds without juggling five different tools.

Complete each audit in under 60 seconds (target: 45s)
Check 6 categories: Performance, Security, Accessibility, SEO, AI Search, Code Quality
Detect framework-specific issues (Next.js, React patterns)
Report actionable fixes, not arbitrary scores
Scale from free tier (1 free scan with PDF report) to Professional tier (unlimited scans)
Be honest about limitations (~70% accessibility coverage, not 100%)

The Solution

Built a parallel processing engine that runs 50 checks across 6 categories in roughly 45 seconds. Google Lighthouse handles the performance and accessibility foundation. Custom checks cover framework-specific issues, security headers, and semantic HTML structure (for ChatGPT and Perplexity). Speed mattered more than checking everything—focus on what breaks sites in 2025, not legacy browser bugs from 2015.

Services Provided

Product DevelopmentSystem ArchitectureAPI Development

Results Achieved

Performance

45s average

Scan Speed

Fast enough to run during active development—no waiting around

50 automated

Parallel Checks

6 categories checked simultaneously: Performance, SEO, Accessibility, Security, AI Search, Code Quality

~3 hours

Time Saved

vs manual audits across multiple tools (Lighthouse, WAVE, Screaming Frog)

1 free scan

Free Tier

PDF report delivered to your inbox—try it before committing

SEO & Search Visibility

Current

2025 Standards

Core Web Vitals (LCP, TBT, CLS), WCAG 2.2 AA, semantic HTML for AI search

Next.js & React

Framework-Aware

Detects modern framework patterns and flags common performance issues

Validated

AI Search Ready

Checks semantic HTML structure for ChatGPT, Perplexity, SearchGPT

Covered

Security Basics

HTTPS, security headers, CSP, SSL certificate validation

Accessibility & Compliance

~70% automated

Honest Coverage

No false promises—30% still needs manual testing (screen readers, context)

Not scores

Specific Fixes

"12 images missing width/height" instead of "Performance: 78/100"

Targeted

WCAG 2.2 AA

Checks contrast ratios, keyboard navigation, alt text, ARIA labels

£24/month

Professional Tier

Unlimited scans, full dashboard access, scan history—audit sites without limits

Key Achievements

50 automated checks running in parallel—results in under 45 seconds
Catches roughly 70% of accessibility issues automatically (most tools catch 30-40%)
Two pricing tiers: Free (1 free scan with PDF report), Professional (£24/month unlimited scans)
Built from 15 years and 500+ manual audits—solving problems that kept appearing
Shows specific fixes ("12 images missing width/height") not vague scores like "Performance: 78/100"
Focuses on 2023-2025 web standards—Core Web Vitals, WCAG 2.2, semantic HTML for AI search
Pre-launch testing reduced image sizes and improved load times across test sites

Technology Stack

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