This plugin will allow you to check your pages/posts HTML against the W3C Validator.
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MPL-Publisher — Ebook & Audiobook Creator
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Feeds for YouTube (YouTube video, channel, and gallery plugin)
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WP CountUP JS
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Admin Collapse Subpages
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Private groups
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Instant CSS
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SEOWriting
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Volunteer Sign Up Sheets
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ANAC XML Bandi di Gara
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Contact Form Block
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instant.page
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CodeColorer
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Christmas Panda
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Magic Block
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Uber Login Logo
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WP Mail Log
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Genesis Featured Widget Amplified
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Post to Google My Business (Google Business Profile)