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Practical guides on HTML validation, CSS debugging, SEO markup, and writing cleaner code.
Every HTML validator report has the same usual suspects. Here are the 10 errors I see most often,with the fix for each one. I built ValidateHTML to catch these automatically, but knowing why they matt
Every meta tag you need for search engines, social media, and browsers. Copy-paste templates, character limits, and common mistakes to avoid. Check your own tags with the ValidateHTML meta tag checker
Open Graph tags control how your pages look when shared on Facebook, LinkedIn, Twitter, Slack, Discord, and more. This guide covers everything from basic setup to platform-specific requirements. Test
25 essential checks to run before deploying your website. Covers HTML structure, SEO, accessibility, social sharing, and performance. Use the ValidateHTML validator to automate most of these checks. H
