The HTML validator is a tool used to inspect HTML and CSS code for errors. While it is possible to manually review HTML and CSS, this process is laborious and may result in overlooking some mistakes. This article will provide a comprehensive overview of the HTML checker.
Using an HTML validator allows for comprehensive error checking and offers guidance on resolving any issues. Employing this tool is a valuable approach to identify and prevent coding errors that could potentially impact the performance of a website. The validator identifies coding errors, enabling us to rectify them effectively.
Uses of HTML checker
- Syntax verification
It is employed to validate the syntax of the HTML and CSS code, ensuring the accuracy of the code structure.
- Accessibility
It is employed to ensure that individuals with disabilities can easily access the online content without encountering any difficulties.
- Interoperability across different web browsers
It is employed to identify issues that might occur on various browsers.
- Security
It is employed to verify security measures and prevent possible vulnerabilities.
- Improved efficiency
Some coding mistakes can impact the performance of a website, making it crucial to identify common errors made by developers. Once errors are pinpointed, they can be rectified to ensure a clean and error-free codebase.
- Search Engine Optimization
It is employed to enhance the readability and comprehensibility of web pages while improving SEO rankings. Each search engine operates with its unique crawler that examines web pages and generates their index. These crawlers rely on HTML markup to interpret the layout and information within a web page. An error-free HTML code plays a crucial role in facilitating the indexing and ranking process of a web page.
Validating HTML code
There exist a variety of tools that are used to verify HTML code. These utilities analyze the HTML code and detect any errors present. Users have the option to upload an HTML file, paste the code directly, or input the URL for validation.
There are various kinds of validators and they are classified into four groups:
- Online HTML Validators: These types of validators are available online and free to use. It is utilized to validate HTML against W3C standards. It detects all mistakes and warnings.
- Free HTML Validators: These types of validators are free to use which permits to check the HTML files against open standards. Free HTML validators provide basic features only.
- Browser Extension: There are browser extensions available for different browsers which can be added to the browsers. It provides a shortcut to validate HTML.
- Premium Validators: These types of validators are paid and ask for a fee to use them. It validates HTML on the basis of HTML standards set by W3C. It provides advanced features.
HTML Validators Tools
The tools listed below are used for validating HTML:
W3C Markup Validation Service
It serves as a validation tool used to check the accuracy of HTML code. The tool was created and is currently maintained by Gerald Oskoboiny.
Features:
- It is a free tool that is utilized to validate web documents such as HTML, SMIL, XHTML, MathML, etc.
- It permits to validate code by URL, validate code by file upload or validate code by direct input.
- It is utilized to validate the code as per the ISO standards.
HTML Validator
It serves as a validation tool used to inspect HTML, CSS, SEO, accessibility, and more. This tool was created by AI Internet Solutions LLC.
Features:
- It eliminates website issues that create problems in generating a number of viewers.
- It includes an HTML validator, CSS validator, accessibility testing tool, line checker, JavaScript Linter, Spell-checker, PHP checker, HTML editor, CSS editor, and SEO checker.
- It provides privacy as it does not require an internet connection to validate the file.
- It is highly customizable, which means the user can customize it on the basis of their requirement.
- It is utilized by webmasters, web developers, students, teachers, etc.
HTML Validator Extension for Mozilla Firefox
The HTML validator extension is specifically designed for the Mozilla Firefox browser and can exclusively be installed on this particular browser. Its primary function is to validate both HTML and CSS code.
Features:
- It validates the source code of a website on the basis of certain standards.
- It checks errors and highlights them so that web developers can correct them.
- It displays errors in the form of icons in the status bar.
HTML Validator Extension for Google Chrome
This HTML validator serves as an extension designed specifically for the Google Chrome web browser, exclusively compatible with this browser platform. Its primary function is to inspect and validate both HTML and CSS coding structures.
Features:
- It finds errors present in the code on the basis of W3C standards.
- It shows the mistakes in an icon form in the status bar of the browser.
- It displays syntax errors and warnings.
Total Validator
This Total validator serves as a tool designed for validating HTML and CSS code.
Features:
- It finds errors present in the HTML and CSS code.
- It is utilized to check spelling.
- It is utilized to check the broken links present on the website.
- It permits checking off-line pages that are not published.
- It permits the testing of DOM for JavaScript-based sites.
- It can run on macOS, Windows and Linux.
We have previously covered well-known validators, however, there exists a variety of HTML validators beyond those. You are free to choose an HTML validator based on your specific needs.
Conclusion:
We have covered the HTML validator in this tutorial. The HTML validator is used to confirm the accuracy of HTML and CSS coding. There are multiple tools accessible for verifying HTML and CSS code.