WordPress Validation Plugins

Contact Form 7 Email Validation plugin adds an extended validation to verify domain in email address for email fields of Contact Form 7 plugin.

Prevent URLS & Emails in gravity forms textarea fields.

Ideal Postcodes UK address search and validation extension for WooCommerce

This plugin adds client-side validation to the Wordpress comment form, using the jQuery validation plugin.

This plugin will allow you to check your pages/posts HTML against the W3C Validator.

This plugin adds an awesome feature that provides instant feedback and guidance in each field, helps prevent errors.

Added mail validation function to Contact Form 7. Protected by rejection filter, RFC filter, and DNS filter.

The Validated Field add-on for Advanced Custom Fields provides input masking and server-side validation of other field types.

With the Byteplant Phone Validator plugin you can easily verify if a phone number is really valid and callable (https://www.byteplant.

With the Byteplant Email Validator plugin you can easily verify with a real-time live check if an email address really exists and is valid (https://ww …

Address Validator for WooCommerce automatically validates and corrects billing and shipping addresses for 240+ countries world-wide (https://www.

ACF WYSIWYG Character Limit adds max-character controls to ACF editors, improving content quality, and editorial standards across WordPress.

Add a custom validation action for Forms to your Elementor installation to run server-side validation for your form fields.

Validation Plugin comments. The plugin is based on js-script jquery.validate.

ads.txt Guru is a revolutionary tool to eliminate the burden of maintaining website ads.txt files!

Automatically checks the validity of the page with the service provided by the site http://validator.w3.org/

Track failed form submissions and get notified when they reach a customisable threshold. Requires Gravity Forms.

Kick spam with a highly advanced email validation in comment forms, user registration and contact forms using Mailgun's Email validation service.

This widget will submit your wordpress RSS feed to feedvalidator.org, and check the results to verify your feed is valid.

The Post-title-validation Plugin helps to create validation on title field of post, page, custom content type.

Enhanced Comment Validation plugin is an effective security solution that protects your WordPress comment form.

Wordpress default comment form validation using javascript and customization.

Causes the visual editor to ignore code within the ignore_code shortcode. Great at keeping advanced HTML, JavaScript, or PHP code intact.

Dokan Product Validation is a WordPress plugin for generating the required Product information fields.

The Protected Site plugin blocks incoming traffic from accessing a blog or a specific blog in a network by requiring visitors to log in to WordPress.

Allows you to make post, page, custom post elements required: title, content, featured image.

This plugin will let you add the functionality in Contact Form 7 File fields to validate it by mime types.

Advanced phone number validation and anti-spam protection for WPForms Lite & Pro.

Reject disposable email addresses in Gravity Forms email fields.

VALIDATE YOUR MAILING LIST IN ONE CLICK Be confident your mailing list contains only real emails addresses, get rid of bots and inactive users

Check email address inputs for common typos and fix them with only one click. Easily define custom checks.

Prevent WCAG accessibility errors in your content with real-time validation for blocks, meta fields, and document structure.

Email Validator is a FREE lightweight and high-performance WordPress plugin that provides real-time email address validation during registration and f …

Validates KSA National Addresses during WooCommerce checkout using the OTO API.

📦 Validate Customer Addresses in WooCommerce

WP-Validate collects all the pages on your site and runs them through the W3C's HTML Validator.