Score your website across performance, SEO, security, mobile readiness, and accessibility in one comprehensive audit. Our grader tests real-world conditions and delivers actionable fixes ranked by impact so you know exactly what to improve first.
Most website owners cannot see the technical issues hurting their traffic, conversions, and search rankings. These are the blind spots our grader exposes.
Performance scoring breaks down load time into render-blocking resources, unoptimized images, server response time, and JavaScript execution so you fix the right things first.
SEO scoring checks title tags, meta descriptions, heading hierarchy, image alt text, canonical tags, and robots directives across every scanned page.
Security scoring validates SSL configuration, checks for HSTS, CSP, X-Frame-Options, and other security headers that protect visitors and improve trust signals.
Mobile scoring tests viewport configuration, touch target sizes, font readability, horizontal scrolling, and responsive image delivery on actual mobile viewports.
Accessibility scoring checks WCAG 2.1 Level AA compliance including color contrast ratios, ARIA labels, keyboard navigation, screen reader compatibility, and form labeling.
Unified scoring with impact-ranked recommendations gives you a single prioritized action list combining all five categories ordered by the biggest improvement potential.
Each category is scored independently on a 0 to 100 scale with specific pass-fail checks and improvement recommendations.
Measures page load speed, Core Web Vitals, resource optimization, and server response time against Google performance benchmarks that directly impact rankings and user experience.
Evaluates on-page SEO fundamentals including title tags, meta descriptions, heading structure, image optimization, internal linking, and technical SEO elements that affect search visibility.
Validates SSL certificate configuration, security header implementation, mixed content issues, and common vulnerability indicators that affect visitor trust and browser warnings.
Tests mobile viewport configuration, responsive design implementation, touch interaction readiness, and mobile-specific performance factors that determine mobile search rankings.
Checks WCAG 2.1 Level AA compliance across color contrast, semantic HTML, keyboard navigation, ARIA implementation, and form accessibility to ensure your site works for all users.
Combines all five categories into a weighted overall grade with a prioritized fix list ordered by impact. Each recommendation includes difficulty level, expected improvement, and implementation guidance.
Websites that score above 80 across all five categories see measurably better search rankings, lower bounce rates, and higher conversion rates. Knowing your score is the first step to systematic improvement.
Most websites accumulate technical issues over time that are invisible to owners but visible to search engines and users. A comprehensive grade exposes problems before they cost you traffic.
Not all website issues are equal. Our scoring ranks every recommendation by potential impact so you invest development time on changes that move the needle most.
Knowing your score lets you compare against industry averages and direct competitors, revealing whether your site is ahead or behind on the factors that matter.
Regular grading creates a performance baseline that makes improvement measurable. Score trends show whether your team investments in site quality are paying off.
Security vulnerabilities, accessibility violations, and mobile usability problems can trigger browser warnings, lawsuits, and user abandonment. Grading catches these before they cost you.
Individual checks across performance, SEO, security, mobile, and accessibility in every scan
From URL input to complete report card with prioritized fixes in under sixty seconds.
Input any URL and our crawler fetches the page, renders JavaScript, and begins running 50 plus individual checks across all five scoring categories simultaneously.
See your grades across performance, SEO, security, mobile, and accessibility with specific pass-fail results for every individual check and overall category scores.
Get your personalized fix list ranked by impact with implementation guidance for each issue. Quick wins are highlighted so you can start improving your score immediately.
Grade product pages, checkout flows, and category pages for speed, mobile experience, and SEO that directly impact revenue.
Evaluate marketing pages, app dashboards, and documentation sites for performance and accessibility compliance.
Check patient portals and practice websites for ADA accessibility compliance, security standards, and mobile readiness.
Grade firm websites for local SEO signals, mobile performance, and security trust indicators that influence client decisions.
Evaluate institution websites for accessibility compliance, mobile usability, and page speed across content-heavy pages.
Check banking and fintech sites for security header implementation, SSL configuration, and regulatory compliance indicators.
A mid-market retailer used website grading to identify and prioritize 34 critical issues dragging down performance, SEO, and mobile experience.
RetailPlus scored 38 out of 100 overall with critical failures in performance (slow load times), security (missing headers), and mobile (broken responsive layouts). Their development team had no prioritized list of what to fix first.
We used the grader report to create a 60-day sprint plan attacking quick wins first, then high-impact fixes. Performance optimizations alone lifted their score by 25 points in the first two weeks.
“The ZapTap website grader gave us the prioritized roadmap we needed. We went from a score of 38 to 91 in sixty days by following the impact-ranked fix list. The biggest surprise was how many quick wins were hiding in plain sight. Our organic traffic grew 41% just from fixing the issues the grader identified.”
The overall grade is a weighted average of five category scores: performance (25%), SEO (25%), security (20%), mobile (20%), and accessibility (10%). Each category runs individual pass-fail checks that aggregate into a 0 to 100 score.
We recommend monthly grading to track improvement and catch regressions. After major updates, deployments, or redesigns, run an immediate re-grade. Regular grading creates performance baselines that make improvement measurable.
The free tool grades one URL per scan. For a comprehensive site-wide audit covering all pages, internal linking, site architecture, and cross-page issues, our full audit service scans your entire domain.
Our grader includes security and mobile categories that Lighthouse does not score separately, and uses different weighting for overall grade calculation. Scores may also differ due to geographic testing location, connection speed simulation, and JavaScript rendering differences.
Yes. Run the grader on any publicly accessible URL including competitor websites. Compare scores category by category to identify where you lead and where you trail. This helps prioritize improvements that close competitive gaps.
Yes. Every recommendation is ranked by expected impact on your score and overall website performance. Quick wins that require minimal effort are flagged separately so you can make immediate improvements while planning larger fixes.
Not necessarily. A low security score typically indicates missing preventive measures like security headers, CSP policies, or HSTS configuration rather than an active breach. However, these gaps increase vulnerability and should be addressed promptly.
Free tools, guides, and related services to help you take action.
Project revenue lift from conversion improvements.
Calculate ROI →Test Core Web Vitals with fix recommendations.
Check Speed →Pre-launch, launch day, and post-launch checklists.
Get the Checklist →How much should a website cost? Real pricing data.
Read the Guide →This free tool grades one page at a time. Our full website audit scans your entire domain, analyzes site architecture, crawl budget, internal linking, and 200-plus ranking factors to build a complete optimization roadmap.