✅ SEO Glossary 2025

Welcome to our SEO Glossary — your A–Z resource for over 500 SEO and AI Search terms. Click on any term to explore its meaning and discover related optimization strategies. You can also use the AI chat in the bottom-right corner for deeper explanations and personalized insights.

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A technique that delays loading of images or resources until needed.
A technique that defers loading of images or videos until needed.
An open-source tool by Google for auditing performance and accessibility.
Link building is the process of acquiring backlinks from other websites to increase domain authority and ranking.
The process of acquiring backlinks to improve search engine rankings.
The process of analyzing and removing harmful backlinks.
Having backlinks from a wide range of domains and types of websites.
An agreement between sites to link to each other.
The overall composition of backlinks pointing to a website.
Recovering lost or removed backlinks to restore link equity.