Html Proofer

Overview

HTMLProofer is an essential tool for anyone generating HTML files, especially for developers focused on maintaining high-quality output. It provides a comprehensive suite of tests aimed at ensuring that your HTML documents meet industry standards. From checking image references and alt tags to verifying the functionality of internal and external links, HTMLProofer acts as an all-in-one checker. It is particularly useful in continuous integration environments, allowing developers to catch issues early in the development process.

The robustness of HTMLProofer lies in its ability to trace errors back to documented best practices and standards, enhancing reliability. For advanced users, it offers customizable configurations while maintaining an easy-to-use command-line program for the majority of front-end developers.

Features

• Image Checks: Verifies that all images have alt tags and checks the validity of both internal and external image references.

• Link Validation: Ensures that internal and external links are functional and checks for proper hash references and CORS/SRI settings.

• Script Verification: Confirms that internal and external script references are loading correctly, with an emphasis on security settings.

• Favicon Validation: Checks the integrity of favicons to ensure they are valid and properly displayed.

• OpenGraph Metadata Validation: Verifies the accuracy of images and URLs in OpenGraph metadata, crucial for sharing on social media platforms.

• Flexible Usage: Capable of running checks on files, directories, or even arrays of links, making it adaptable to various workflows.

• URL Swapping: The ability to map URLs allows for more effective testing of content that might not match server-served resources.

• Continuous Integration Friendly: With configurations available for faster installation and execution, it's designed to integrate seamlessly into CI/CD pipelines.