How to Build a CSS Usage Analyzer for Large WordPress Websites

Create an application to scan and analyze CSS usage across a large WordPress website with 1000+ pages, identifying unused elements and organizing legacy rules to optimize CSS structure and performance.

Simple Summary

Develop an application to analyze CSS usage across a large WordPress website, identifying unused elements and potential legacy rules for optimization.

Product Requirements Document (PRD)

Goals:

Develop an application to analyze CSS usage across a large WordPress website
Identify CSS rules for elements no longer in use
Detect CSS that could be moved to a legacy module
Optimize CSS structure for improved performance and maintainability

Target Audience:

Web developers and site administrators managing large WordPress websites

Key Features:

Ability to scan multiple pages (1000+) of a WordPress website
CSS usage analysis across HTML and JavaScript files
Identification of unused CSS rules
Suggestion of rules that could be moved to a legacy module
Compatibility with modular CSS structures

User Requirements:

Ability to analyze a proprietary WordPress system
Support for websites with HTML and JavaScript content
Handling of CSS split into modules serving rules for similar pages

User Flows

N/A

Technical Specifications

Information not available in conversation.

API Endpoints

N/A

Database Schema

N/A

File Structure

css-analyzer/
├── src/
│   ├── scanner/
│   │   ├── page_scanner.py
│   │   └── css_analyzer.py
│   ├── utils/
│   │   ├── wp_connector.py
│   │   └── file_handler.py
│   └── main.py
├── tests/
│   ├── test_scanner.py
│   └── test_utils.py
├── config/
│   └── settings.yml
├── requirements.txt
└── README.md

Implementation Plan

Set up project structure and environment
Develop WordPress connector to access site pages
Create page scanner to extract HTML and JS content
Implement CSS rule extractor from modular CSS files
Develop CSS usage analyzer to identify unused rules
Create logic to suggest rules for legacy module
Implement reporting mechanism for analysis results
Develop unit tests for each component
Perform integration testing with sample WordPress site
Optimize for performance with large-scale sites
Create documentation and usage instructions

Deployment Strategy

Information not available in conversation.

Design Rationale

The application is structured to handle a large-scale WordPress website with modular CSS. The scanner and analyzer components are separated to allow for flexibility in processing different page types and CSS structures. The WordPress connector ensures compatibility with the proprietary system mentioned, while the modular approach allows for easy expansion or modification of analysis criteria in the future.