A Simple Guide to Understanding Common SEO Terms
What Is an SEO Glossary?
SEO can feel like learning a new language.
One article talks about crawling.
Another discusses indexing.
Someone else mentions canonical URLs, structured data, entities, or Core Web Vitals.
If you’re new to SEO, it’s easy to become overwhelmed by unfamiliar terminology.
This glossary explains the most common SEO terms using simple, plain English. Whether you’re a beginner, marketer, business owner, or developer, you’ll have a quick reference whenever you encounter a new SEO concept.
Think of this page as your SEO dictionary.
As search engines evolve, this glossary will continue growing with new terms, technologies, and AI Search concepts.
Example Terms
Alt Text — A description of an image used for accessibility and search engines.
Backlink — A link from another website pointing to your website.
Canonical URL — The preferred version of a webpage used to avoid duplicate content.
Core Web Vitals — Google’s measurements for loading speed, responsiveness, and visual stability.
Crawl — The process search engines use to discover webpages.
Entity — A person, place, business, or concept recognized by search engines.
Googlebot — Google’s automated crawler.
Index — Google’s database of webpages eligible to appear in search results.
Internal Link — A link from one page on your website to another.
JSON-LD — Google’s preferred format for implementing Schema Markup.
Keyword — A word or phrase people search for.
Local SEO — SEO focused on improving visibility in local search results.
Meta Description — A short summary that may appear below a page title in search results.
Robots.txt — A file that tells search engines which pages they may crawl.
Schema Markup — Structured data that helps search engines understand content.
SERP — Search Engine Results Page.
Sitemap — A file listing important pages on a website.
Technical SEO — Optimizing the technical foundation of a website.
XML Sitemap — An XML file that helps search engines discover webpages.
Continue expanding this glossary as you publish more Learning Guides.
Need Expert Help?
Learning SEO terminology is an excellent first step. Applying these concepts to your own website is where experience makes the biggest difference. If you’d like help improving your website’s SEO, AI Search visibility, or technical performance, AEchron can help.
Visit AEchron.com to schedule a consultation.
Related Learning Guides
Technical SEO
AI Search
Google Search
Schema Markup
Google Search Console
Core Web Vitals
External Resources
Google Search Central Glossary
Schema.org
MDN Web Docs
Key Takeaways
SEO terminology doesn’t have to be confusing. Understanding the language of search engines makes it easier to learn new concepts, communicate with developers and marketers, and make better decisions about your website. As you continue through the Learning Guides, you’ll encounter many of these terms in greater detail, helping you build a strong foundation in modern SEO.