If I can only do one of SEO, AEO, or GEO, where should I start?

Start by confirming that your pages are crawled and indexed — that is SEO fundamentals. Pages search engines cannot read are unlikely to be cited in AI answers either. If the basics are already solid, AEO work on question-style structure and direct answer paragraphs usually shows results fastest for the effort.

How do AEO and GEO differ in practice?

AEO asks whether your sentence gets selected as the answer; GEO asks whether your brand is named or cited inside a generative answer. AEO leans toward document structure and self-contained sentences, while GEO leans toward brand-anchored factual statements and consistency across channels.

SEO vs. AEO vs. GEO: What Actually Differs?

Q: How does SAENRU's SEO·AEO·GEO diagnostic work?

The measured diagnostic report costs KRW 190,000 (VAT excluded) and is delivered in five business days. Build packages start at KRW 3,600,000 and monthly operations at KRW 1,470,000 per month, with the diagnostic fee fully credited toward a build contract.

“I get SEO, but aren't AEO and GEO just the same thing with new labels?” It's the question we hear most often. The three terms travel together so often that they can look like marketing repackaging. But once you actually do the work, they differ in who is reading and where you verify results. Knowing that difference is what keeps you from saying “we spent the budget, but I can't tell what improved.”

What exactly separates SEO, AEO, and GEO?

The simplest test is where you check for results. SEO shows up in the search results list, AEO in the answer slot for a question, and GEO inside the sentences a generative model produces. The foundational work overlaps heavily, but the finish line is different.

SEO — The readers are crawlers and humans clicking links. Success looks like indexing, ranking, and clicks. Typical work: crawlable structure, title and body design, internal links, page speed. When it fails, you are simply invisible.
AEO — The reader is a machine trying to extract one answer for one question. Success means your sentence gets selected as that answer. Typical work: question-style headings, a direct answer paragraph right below each heading, FAQ structured data, and sentences that still make sense when lifted out of context. When it fails, you are visible but never chosen.
GEO — The readers are generative answers from tools like ChatGPT, Gemini, and Claude. Success means your brand gets named or cited inside that answer. Typical work: factual sentences with your brand as the subject, explicit pricing, conditions and timelines, and consistency across pages. When it fails, the answer appears without your name in it.

If you want the definitions and a side-by-side comparison in one place, our complete SEO·AEO·GEO guide lays out the table and situation-based priorities.

Can't you just do SEO well and be done?

Half true. A page that never gets indexed is unlikely to be cited in an AI answer either, so the foundation is shared. But the non-overlapping part is exactly where outcomes are decided today.

For example, a site that paints its body text in with JavaScript looks fine to a human but can read as an empty page to collectors that only parse raw HTML. A sentence like “tap the button below to inquire” loses all meaning the moment it is extracted. Pricing baked into an image is readable by people and invisible to machines. None of these were serious problems in classic rank management.

How do you find out which layer is blocking you?

You can usually locate the bottleneck in about thirty minutes. Run these five checks in order — spending money on a later item rarely pays off while an earlier one is broken.

Search your own brand name. Does your official page appear on the first screen? If not, start with SEO fundamentals.
Disable JavaScript and reload. Is the body text still there?
Are price, timeline, and terms written as text sentences rather than images?
Feed your ten most common customer questions into ChatGPT, Gemini, and Claude. Does your brand get mentioned even once?
Do the same facts (price, duration, scope) appear differently on your home page, about page, and blog?

What mistakes come from misreading the difference?

The most common error is treating the three as entirely separate construction jobs and paying twice, or lumping them into one and never measuring anything. Patterns we see repeatedly:

Building a separate “AI page” whose prices and terms contradict the main site — conflicting facts give models less reason to cite you.
Adding llms.txt or structured data while leaving the body structure untouched — a signpost with nothing behind it.
Reports that track rankings only, with nobody checking whether AI answers cite you.
Copy where every sentence starts with “we” and the brand name never appears — extract the sentence and the subject vanishes.
Simply repeating keywords more often — answer selection depends on clarity and self-contained sentences, not repetition counts.

How does SAENRU approach this?

SAENRU is an open launch stage for AI builders, and we also run SEO·AEO·GEO consulting that looks at search and AI answers together. This is our own service, so read it with that in mind.

We diagnose everything from Google and Naver search (SEO) through citation in ChatGPT, Gemini, and Claude answers (AEO·GEO) in one pass. A measured diagnostic report is KRW 190,000 over five business days, build packages start at KRW 3,600,000, and monthly operations start at KRW 1,470,000 per month. The diagnostic fee is fully credited if you proceed to a build contract, and all prices exclude VAT. The SAENRU site itself is a working example — raw HTML with embedded JSON-LD and llms.txt — so you can open our source and see exactly what gets installed.

In short, SEO, AEO, and GEO are not competing options but three windows onto the same asset. Before approving a new budget, run the five self-checks above.