The dependency nobody mentions
When ChatGPT, Claude or Perplexity answer a question that calls for current facts, they do not draw on their training memory: they run a search, retrieve pages, and write from what they find there. That search rests on classic search indexes.
The consequence is simple. A site Google has not indexed appears in no result set, therefore in no generative answer. There is nothing to take. All the markup and structuring work stays without effect until that condition is met.
The shortcut "SEO is dead" sells services. It describes reality badly: search visibility has become the entry condition of a game whose selection rules have changed.
What each one optimises
| Classic search | Generative engines | |
|---|---|---|
| Object | A page in a list | A passage in an answer |
| Unit selected | The URL | The paragraph or the block |
| What decides it | Relevance, authority, inbound links | Clarity of the passage, identifiable entity, freshness, corroboration |
| Number of winners | Ten visible positions | Two to five sources cited |
| Value of a middling place | Small but real | Nil: you are cited or you do not exist |
| Measurement | Position, impressions, clicks | Manual citation readings, across a series of questions |
The four levers that serve both
The good news is that most of the work is shared. Four pieces of work produce an effect on both sides, and they are where to start.
- Heading structure. One H1, no skipped level, subheadings that genuinely announce what follows. A classic engine uses it to understand the subject, a model to delimit a passage.
- Clarity of the answer. Answer the question in the first three sentences, before developing. That is what produces a snippet in the results, and it is exactly what a model takes.
- Visible freshness. A publication and update date, shown and marked up. Both systems use them to separate equivalent content.
- Technical health. HTTPS, response time, no redirect chains, reasonable HTML. A crawler that struggles to retrieve a page retrieves it less often, whatever its nature.
The three levers specific to generative engines
Explicit permission for the AI crawlers. GPTBot, ClaudeBot, PerplexityBot, OAI-SearchBot and Google-Extended are separate crawlers from Googlebot, with their own rules in robots.txt. Allowing Googlebot does not allow them. Blocking is common, often inherited from a plugin or a host setting, and it cancels everything else.
Entity declaration. A model more readily cites a source it can name and place. A JSON-LD Organization or LocalBusiness block tells it who you are, where you work and on what. The detail of which schemas to declare fits on one page.
Cutting into self-contained passages. A paragraph has to make sense out of its context, because it will be read out of its context. That means naming the subject in the sentence rather than writing "it" or "this solution", and not spreading one answer across three sections.
What only serves classic search
Two pieces of work stay specific to SEO and have no direct effect on citation: acquiring inbound links, and the fine internal linking meant to distribute authority between pages. They still count — but they count for being found, not for being retained.
How to split the effort, depending on where you stand
You receive almost no organic traffic
The subject is not GEO. You first have to exist in the index: content, structure, indexing, sitemap. Investing in citability before that is decorating a shop window on a closed street.
You receive traffic, and it is eroding on informational questions
This is where the trade-off genuinely arises. Pages that answered "how do I", "what is", "what is the difference" are losing clicks to generated answers. The right reaction is not to delete them but to make them quotable: they then become a source of recommendation rather than a source of visits.
Your business is local
The two converge almost completely. An up-to-date business listing, consistency of name, address and phone number everywhere they appear, real reviews, a page dedicated to the area you serve. Those are the same signals that feed the local pack and the generative answers to "a professional near me".
The starting point
Before deciding, you have to know where you stand. Our free audit measures in a minute the points common to both disciplines and the three levers specific to GEO, on the page of your choice. The pillar page on GEO covers the whole mechanism.