The Grover Performance IndexTM Methodology

GPI uses a 0-1,000 scale. The public analyzer scores seven equally weighted categories: Infrastructure, Website Speed Analysis, Image Optimization, Data & Tracking, Conversion Optimization Signals, Technical Simplicity, and Is it fake? (authenticity signals). AI Evaluation is an eighth category only when enabled for an authorized user. Each category is normalized to 0-200. The total is the rounded sum divided by 1,400 for seven categories, or 1,600 for eight, multiplied by 1,000. Each category therefore contributes one-seventh (about 14.29%) or one-eighth (12.5%) of the total. Missing or unknown evidence can affect the result; the score is a diagnostic snapshot, not a guarantee of rankings or revenue.

The sections below group related categories for explanation; they do not introduce different scoring weights.

Website Speed Analysis and Image Optimization

Measures:

Loading and layout metrics

Server response and request efficiency

Transfer weight and JavaScript impact

Image weight and next-generation formats

Oversized-image risk and compression

Lazy loading and responsive images

Image CDN delivery

Purpose: Ensure infrastructure supports user experience and SEO performance.

Two professionals analyzing SEO performance data on a large screen displaying charts, graphs, and search optimization metrics with analytical tools.
A person sitting on a laptop with a security shield checkmark, globe, and Wi-Fi symbol representing global infrastructure and cybersecurity protection.

Infrastructure

Measures:

Hosting quality and PHP version

SSL certificate validity

TLS version

HTTP protocol

Proxy and DDoS protection

Object caching

Split architecture and OCSP stapling

Purpose: Ensure the website operates on a secure, scalable foundation.

Technical Simplicity

Measures:

Dependency footprint

Third-party script overhead

DOM complexity

Plugin footprint

Builder complexity

Font and icon overhead

Redundant libraries and build maturity

Purpose: Assess dependencies, page complexity, and avoidable technical overhead.

A person holding a tablet reviews a website layout featuring images, video, and user profiles, symbolizing UX design and content clarity.
A woman on a ladder examines a sales funnel with a magnifying glass, analyzing customer conversion stages against a bar chart background.

Conversion Optimization Signals

Measures:

CTA visibility

Conversion pathways

Form friction

Trust signals

Offer clarity

Messaging alignment

Funnel structure

Purpose: Evaluate how effectively the site converts traffic into leads or revenue.

Data & Tracking and Authenticity

Measures:

GA4 and event tracking

CRM integration and call tracking

Real and AI-generated imagery signals

AI-generated and SEO-copy signals

Visible proof signals

Business identity signals

Purpose: Assess measurement readiness and visible business-identity and content-authenticity signals. These are two separate, equally weighted categories.

Three professionals collaborating around a large bullseye target with an arrow in the center, representing strategic business goal alignment and teamwork.

Final GPI Score

The final score is normalized to 0-1,000 after category-level rounding. A public scan with seven category scores of 140/200 totals 980/1,400, producing 700/1,000: Bronze Certified. When AI Evaluation is enabled, all eight categories count equally and the denominator is 1,600.

Score tiers:

950-1,000: Elite Certified

850-949: Gold Certified

750-849: Silver Certified

500-749: Bronze Certified

0-499: Critical, Not Certified

Certification tiers are separate from the analyzer's diagnostic bands: 900-1,000 Optimized & Scalable; 700-899 Stable but Improvable; 550-699 Inefficient; and 0-549 Architecturally Constrained. Use results to prioritize review and verify improvements against the same scan conditions.