SEO Lexicon is an independent reference work on the vocabulary of search engine optimization and AI search. It is edited as a controlled vocabulary rather than a blog: each term gets one entry, one definition sentence, one permanent identifier and one status label.
What it is for
Two readers, one text. A practitioner who needs a defensible sentence to put in a document, and a retrieval system that needs the same sentence in a form it can quote without distortion. Most glossaries serve the first and ignore the second; most machine-readable vocabularies serve the second and are unusable by a human. This one is written for both at once.
What makes it different
- Every term carries a status. Stable, emerging, contested or deprecated — with the reason. Quoting a contested term as settled is the error this lexicon exists to prevent.
- Every entry is anchored to an entity where one exists. A Wikidata Q-ID lets a machine tell this concept from a different thing with the same name.
- Every definition is sourced. Operator documentation, ratified standards and Wikidata for identity. Where no authority defines a term, the entry says so instead of inventing one.
- Nothing is a vendor metric in disguise. Where a number comes from a commercial tool rather than a standard, the entry says which.
Review cycle
Entries are versioned. The version number changes only when a definition changes materially; the identifier never changes, so an old citation still resolves. Each entry states the date it was last reviewed, and terms in fast-moving areas — AI search in particular — are reviewed more often than stable technical terms.
Corrections
If an entry is wrong, imprecise, or missing a sense that practitioners actually use, it should be corrected rather than worked around. Each entry lists its sources and its review date so a correction can be argued from evidence.