Semantic SEO · Glossary
What is semantic SEO?
Semantic SEO is optimizing a website for meaning rather than individual keywords: covering the entities, attributes and questions a search engine associates with a topic, so the site is understood as a complete and reliable source on it.
Why Semantic SEO matters
Google stopped matching pages to queries word by word years ago. Systems such as the Knowledge Graph, BERT and passage ranking interpret what a query means and which sources understand the topic. Sites built around meaning keep ranking as wording changes; keyword-targeted pages decay every time a competitor publishes something similar.
How Semantic SEO works
- Search engines map queries to entities (things) and their attributes, not just strings of text.
- They judge a source by how completely and consistently it covers the topic around those entities.
- Pages that connect related concepts through structure, internal links and clear language are easier to interpret.
How to apply it
- Start from the topic and its entities, not a keyword list. Build a topical map first.
- Cover the questions and attributes people expect for each entity, in a logical order.
- Link related pages so the site reads as one connected body of knowledge.
- State facts explicitly and consistently, and mark them up with structured data.
Example
A rehab center targeting 'alcohol detox' covers withdrawal timelines, medications, insurance, inpatient vs outpatient and aftercare across connected pages, instead of writing ten near-identical pages for keyword variations.
Common mistake
Treating semantic SEO as sprinkling synonyms and 'LSI keywords' into a page. It's about covering the topic's meaning and structure, not vocabulary.