DOM Validator

This project fetches the DOM of multiple URLs using Puppeteer, validates the HTML, and saves the validation results with detailed error messages in CSV format.

Prerequisites

• Node.js (version 20 or higher)
• npm (comes with Node.js)

Installation

1. Clone the repository:

   git clone https://github.com/dudekm/dom-validator.git

2. Navigate to the project directory:

   cd dom-validator

3. Install the dependencies:

   npm install

Usage

Configuration

The script accepts three parameters from the command line:

1. URL list file: A .txt file with one URL per line.
2. Output CSV file: The file where validation results and details will be saved.
3. Concurrency: The number of URLs to process concurrently.

Example URL list file (urls.txt):

https://example.com
https://another-example.com
https://example.org

Running the project

Once you have installed the dependencies and created your urls.txt file, you can run the project using the following command:

node index.js <urls.txt> <output.csv> <concurrency>

Example:

node index.js urls.txt output.csv 5

The output CSV file will have the following format:

url;status;details
https://example.com;valid;No errors
https://another-example.com;invalid;Line 10, col 5: Element “div” not allowed as child of element “span” (rule: "element-name")