The world of websites and SEO is full of jargon — so we built this glossary to make it all make sense. Whether you’re a business owner, marketer, or just curious about how the web works, you’ll find clear, plain-English explanations of over 150 common terms used in web development, analytics, and search optimization. No buzzwords. No fluff. Just straight answers that help you understand what’s powering your online presence — from alt text to XML sitemaps.