
Topical Authority: How to Build It Step by Step
Sites that cover one topic deeply tend to rank for more of it, faster. Topical authority is not a score; it is the result of complete, well-linked coverage plus outside recognition.
Read articleGEO is mostly SEO with a different scoreboard. Here is what actually changes, what does not, and where to start.

This article compares GEO vs SEO in plain terms, shows where the two overlap almost completely, and gives you a decision table for where to spend time first.
In the GEO vs SEO debate, SEO aims to rank pages in search results, while GEO (generative engine optimization) aims to get your brand cited inside AI answers from ChatGPT, Perplexity, Gemini and Google’s AI features. Most of the work overlaps. Google says its AI features need no special optimization beyond SEO best practices.

The main difference is the goal: SEO measures success by rankings and clicks from search results, while GEO measures success by how often AI answers mention or cite your brand and pages. The methods are far closer than most GEO sales pages admit.
SEO covers technical health, content that matches search intent, internal linking and authority built through links and mentions. GEO uses the same foundations and adds a few extra habits: writing answers that can be quoted in a sentence, making sure AI crawlers such as OAI-SearchBot and PerplexityBot can reach you, and tracking citations across several AI tools instead of one results page.
The term GEO comes from a 2023 academic paper and is now used loosely by agencies. I use it the same way on my own GEO services page: a name for the AI visibility part of a normal SEO plan, not a separate discipline.
No, GEO is not replacing SEO, because the AI systems people use still rely on search indexes and crawled web pages to find what they cite. If your pages are not indexed, crawlable and trusted, no GEO tactic will get them quoted.
Google is explicit about its own products. Its documentation on AI features and your website says there are no additional requirements to appear in AI Overviews or AI Mode, and that the usual SEO best practices still apply. Google’s May 2025 guidance on succeeding in AI search makes the same point and focuses on unique, helpful content and a good page experience.
What is changing is user behaviour. Some questions that used to send a click now get answered on the results page or inside a chatbot. That makes being the cited source more valuable, and it makes vanity ranking reports less useful. It does not make SEO fundamentals optional.
If you already do good SEO, you are probably 80 percent of the way to GEO, and the remaining work is small, specific and cheap. That number is my rough estimate from client audits, not a study, but the pattern is consistent: the gaps are almost always access, answer format and measurement.
GEO and SEO share the same inputs and differ mainly in outputs and measurement, as the table below shows. Use it to spot which column your current plan is missing.
| Area | SEO | GEO | Overlap |
|---|---|---|---|
| Goal | Rank pages and earn clicks | Be cited or mentioned in AI answers | Partial |
| Crawl access | Googlebot and Bingbot | Also OAI-SearchBot, PerplexityBot, Claude-SearchBot | High |
| Content | Intent match, depth, originality | Same, plus quotable one sentence answers | High |
| Authority | Links and brand signals | Mentions and links across trusted sites | High |
| Special files | robots.txt, sitemap | Same; llms.txt optional and unused by Google | High |
| Measurement | Rankings, clicks, conversions | Citations, AI referrals, branded searches | Low |
Ignore any GEO tactic that tries to trick a model rather than inform it, because those tactics either do nothing or put your normal rankings at risk. I see the same handful sold again and again in proposals that clients forward to me.
The tactics that survive are boring on purpose: accurate pages, clear answers, honest comparisons and real mentions earned from people in your industry. If a GEO proposal does not mention any of those, it is selling shortcuts.
A useful test is to ask whether the tactic would still make sense if AI search disappeared tomorrow. Clear answers, original data and genuine mentions pass that test, because they also win classic rankings, referral traffic and trust from buyers. Hidden prompts and mass pages fail it. When I review a GEO plan for a client, any line item that fails this test is the first thing I cut from the budget.
Focus on SEO first if your site has indexing problems, thin pages or no authority, and add GEO habits once those are fixed. Focus on GEO tasks first only if your SEO is already solid and you can see competitors being cited for your topics.
Imagine a law firm with 10 hours a month for marketing. Month 1: 6 hours fixing indexing issues and rewriting the 5 most visited service pages with clear answers to fee and process questions, 2 hours checking crawler access, 2 hours setting up analytics tracking for AI referrals. Month 2 onwards: 5 hours on content updates and one new guide, 3 hours on outreach for mentions in legal directories and local news, 2 hours on a 15 prompt check across ChatGPT, Perplexity and Google, logged in a spreadsheet. The prompt list stays the same every month, so the firm can see whether it moves from zero citations to being named for “how much does a will cost” or “how long does probate take” in its city. Notice that roughly 8 of the 10 hours are classic SEO. That ratio is normal, and it is the honest answer to “GEO vs SEO” for most small businesses. Results are judged on enquiries and cited prompts over a quarter, never on a promise of placement.
GEO stands for generative engine optimization. It describes the work of making your brand and pages more likely to be cited or mentioned in answers from generative AI tools such as ChatGPT, Perplexity, Gemini and Google’s AI Overviews and AI Mode.
They overlap heavily. AEO (answer engine optimization) usually refers to winning direct answers such as featured snippets and voice results, while GEO focuses on AI generated answers. Both rely on clear, quotable answers built on solid SEO foundations.
Google does not use the term GEO. Its documentation says there are no special optimizations needed for AI Overviews or AI Mode and that standard SEO best practices apply. It does not recommend AI text files or special markup for these features.
You can improve crawl access and answer format without links, but authority still matters. AI answers often reflect what trusted sources say about a brand, so relevant editorial links and unlinked mentions on reputable sites remain an important part of GEO work.
Track AI referral traffic in analytics, such as sessions from chatgpt.com or perplexity.ai, and run a fixed list of prompts every month to log which sites are cited. Also watch branded search growth, which often rises when AI tools mention you.
For most small businesses, GEO is best bought as part of an SEO plan rather than as a separate product. Be wary of agencies that promise guaranteed AI citations, because no AI provider offers paid placement inside organic answers.
Facts checked against these official pages. Read how I check facts in my editorial policy.

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