what is a keyword? how keyword research works
A keyword is the word or phrase a user types into a search engine. Keyword research is the process of discovering which queries your audience searches, with what intent and at what volume, weighing competition difficulty, and deciding which keywords each page should target. Done well, it forms the foundation of any SEO and content strategy.
how keyword research is done
Research starts with seed keywords: 10-20 core phrases reflecting the business's services, products and the language customers actually use. The seeds are expanded through Google's autocomplete and related searches, Keyword Planner, and tools like SE Ranking, Ahrefs or Semrush. Keywords your competitors rank for but you do not (the keyword gap) are another valuable source.
The resulting list is filtered by three criteria: monthly search volume (demand), ranking difficulty (competition) and business relevance (conversion potential). A high-volume but irrelevant keyword brings traffic without customers; a low-volume keyword with clear intent can drive sales directly.
search intent types
Two searches on the same topic can carry very different intents, and the content format must match the intent. The core intent types:
- Informational: "what is seo" — served by guides and glossary content
- Commercial investigation: "best seo agencies" — served by comparison and review pages
- Transactional: "seo service pricing" — served by service and product pages
- Navigational: searches for a brand name — served by brand pages
volume vs difficulty, long-tail, and keyword mapping
Short, high-volume keywords ("seo") carry the fiercest competition; long-tail keywords ("technical seo checklist for ecommerce sites") are individually low-volume but add up to large traffic, carry clear intent and convert better. For new, low-authority sites, long-tail is the right starting point.
The final step is mapping: each page targets one primary keyword and its close variations. Multiple pages targeting the same keyword split signals and suppress each other's rankings (keyword cannibalization) — every important query should have exactly one owner page on the site.
frequently asked questions
- which tools are used for keyword research?
- For a free start, Google Keyword Planner, Google Trends, autocomplete and Search Console data are enough. For deeper volume, difficulty and competitor analysis, professional tools like SE Ranking, Ahrefs and Semrush are used.
- which matters more, search volume or difficulty?
- Both, filtered through relevance. The ideal target is a keyword highly relevant to the business, with reasonable volume and a difficulty reachable at the site's current authority. New sites should start with low-difficulty long-tail keywords and move up as authority grows.
- what is a long-tail keyword?
- A search of three or more words with low volume but clear intent — like "corporate website design for law firms". Long-tail keywords have low competition and high conversion rates; collectively they make up most searches and deliver the fastest results for new sites.
- how many keywords should one page target?
- One primary keyword plus its close variations and sub-questions — a single search intent. Variations sharing the same intent ("what is seo", "seo meaning") belong on one page; keywords carrying different intents require separate pages.
sources
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