Secure the technical foundation
Before any content, Google must be able to crawl, render and index your pages. A faulty technical foundation cancels out all your other efforts. This is the first lever because it conditions the four that follow.
Three checks come before anything else. First, indexability: review your robots.txt, your meta robots tags and the presence of an up-to-date XML sitemap. A single forgotten noindex directive can wipe out an entire section of the site. Next, speed and Core Web Vitals: an LCP under 2.5 seconds, a controlled CLS, a site that responds quickly on mobile. Finally, rendering. This is the point most sites neglect.
Static HTML rendering is no longer optional
If your content exists only in client-side JavaScript, you're taking a risk. Googlebot renders JavaScript, but with a delay and a limited crawl budget. Above all, AI answer engines don't execute it at all: without SSR or static HTML, your content is invisible to ChatGPT, Perplexity and AI Overviews. At a time when more than 50% of Google queries trigger an AI Overview, that's a dead loss.
SSR or static pre-rendering is no longer an engineering detail. It's the condition for access to classic engines and AI engines. Check what a crawler actually sees by inspecting the cache and the raw source code, not the DOM rendered in your browser.
For a structured diagnosis, an audit run by an SEO agency always starts from this layer: there's no point optimizing the content of a page that Google doesn't index. If you're new to the subject, our article what is SEO lays the foundations before going further.
Optimize existing and new content
Once the foundation is healthy, content is your most profitable lever. And the quickest win doesn't come from new pages: it comes from optimizing the ones that already exist and that plateau on page two.
It's arithmetic. 92% of citations in AI Overviews come from the top 10, but 47% come from positions 5 to 10. A page in position 8 has already proven its relevance; pushing it into the top 5 takes less effort than creating a page from scratch. Identify these pages in Search Console, answer the intent better, enrich them, update them.
Answer the intent, not the keyword
The content that ranks today answers a precise question from the very first lines. Open each page with a direct, factual answer, then expand. This structure serves the reader, serves Google, and serves AI engines: a self-contained passage of 134 to 167 words is the optimal length to be cited verbatim in a generative answer.
A self-contained, factual passage of this length maximizes your chances of being picked up word for word by an AI answer engine. Too short, it lacks context; too long, it becomes unusable as a citation.
Add structured markup. A well-implemented FAQPage schema is a strong signal for AI Overviews and can trigger rich results. Cover the topic in depth rather than on the surface: a complete page that genuinely addresses a need beats ten thin pages.
Structure internal linking
Internal linking is the most underused lever and one of the most powerful. It distributes authority across your pages, guides Google toward what matters, and clarifies your site's topic. It's also entirely under your control, unlike backlinks.
The winning logic is the silo architecture, or hub-and-spoke. A pillar page covers a broad topic; satellite articles cover each subtopic and point to the pillar with descriptive anchors. The pillar links back to its satellites. This structure concentrates the topical signal and lifts the pillar on competitive queries.
Group your pages by topic. Each cluster has one pillar and several satellites that answer related search intents.
Ban generic anchors like click here. The anchor must describe the destination page and include the target keyword when it's natural.
Each satellite article links back to its pillar page. That's what lifts the pillar on high-volume queries.
Your strategic pages should be reachable within three clicks from the homepage. The deeper a page is, the less authority it receives.
A page with no internal inbound link is almost invisible to Google. Connect it to its cluster.
Build off-site authority
Off-site authority is the slowest lever but the most durable. It's what sets apart two sites with equivalent content. And the definition of authority has changed: it's no longer just a matter of backlinks.
For years, Domain Rating dominated the discussion. Recent data heavily qualifies that. An Ahrefs analysis of 200,000 domains (December 2025) shows that off-site brand mentions correlate far more with AI citations than Domain Rating itself.
| Authority signal | Classic backlinks (DR) | Off-site brand mentions |
|---|---|---|
| Correlation with AI citations | 0.266 | 0.737 (YouTube) |
| What Google and AI engines read into it | Popularity, PageRank transfer | Notoriety, reputation, recognized entity |
| Concrete levers | Editorial links, press, partnerships | YouTube, Reddit, Wikipedia, citations |
| Effect on classic SEO | Direct and historical | Indirect but growing |
Wikipedia accounts for 47.9% of ChatGPT citations. YouTube and Reddit carry significant weight. The consequence is concrete: your authority strategy is no longer limited to earning links, it includes your presence and your mentions wherever AI engines draw their answers. Aim for editorial-quality links, but also invest in a consistent brand presence beyond your own site.
It's foundational work that should be chosen with care. Our guide to choosing an SEO agency details the criteria so you don't hand this project to a provider that still sells backlinks by the volume.
Measure and iterate continuously
Without measurement, you optimize blind. Measurement isn't the last step of a one-off project: it's the loop that makes the four previous levers steerable. SEO is iterative, not linear.
Three sources are enough to get started. Google Search Console for impressions, clicks, average positions and real queries, page by page. An audience analytics tool for post-click behavior. And rank tracking for your target queries. The most actionable data in Search Console remains the pages in position 5 to 15: those are your next wins.
Set a rhythm. Each month, identify the pages plateauing just below the top 10, understand why, fix them, measure the effect the following month. This iteration discipline always beats the big one-off project you never come back to.
One last reality to factor in: visibility is fragmenting. Only 11% of domains are cited by both ChatGPT and AI Overviews. Ranking well on Google no longer guarantees being cited by AI engines, and vice versa. Measuring now means tracking both fronts. With more than 900 million weekly users on ChatGPT, ignoring AI visibility is no longer an option.
To structure your tracking from the start, our GEO Audit Templates Pack provides ready-to-use grids to audit technical, content and AI citability in a single framework.
Get a free GEO audit: indexability, AI citability and priority opportunities, ranked by impact.
Questions fréquentes
How long does it take to improve your SEO?+
Technical optimizations and existing content can produce effects within a few weeks. Internal linking and off-site authority take several months. Expect three to six months for clear progress on competitive queries, more on a recent domain.
Where should you start to improve your SEO?+
Start with the technical layer: indexability, speed, static HTML rendering. A site that Google doesn't crawl properly will never rank, no matter the content. Once the foundation is healthy, tackle content and then internal linking.
Is technical SEO enough to improve rankings?+
No. The technical layer is a necessary condition, not a sufficient one. It ensures your pages are crawlable, fast and understandable. But without content that answers a real search intent and without authority, you won't outrank your competitors.
How do you improve your visibility on ChatGPT and AI engines?+
The same fundamentals matter, plus a few specifics: static HTML because LLMs don't execute JavaScript, citable passages of 134 to 167 words, FAQPage schema and off-site brand mentions. Citations on YouTube, Reddit and Wikipedia correlate strongly with AI visibility.
