SEO, AEO, GEO: DIY or Hire an Agency?
How to decide between doing search and AI-answer optimization in-house or outsourcing it, with a self-assessment checklist.
"Should we do SEO, AEO and GEO ourselves or hire someone?" It looks like a budget question, but the real deciders are how much internal time you actually have and whether you can touch your own systems. The cheapest plan collapses if nobody can spare two hours a week, and the best agency stalls if it can't reach your code, CMS or DNS. If the three acronyms still blur together, read the SEO·AEO·GEO explainer first.
What actually separates DIY from outsourcing?
Split the work into three layers — judgment, construction, repetition — and the answer gets obvious. Judgment and repetition belong inside; construction is often better bought. Handing all three to one side is what usually fails.
- Judgment (strategy) — which questions should lead people to you, which product goes first. Only insiders know. Outsource it and you get a keyword list unrelated to your business.
- Construction (technical) — JSON-LD, rendering method, sitemap/robots/llms.txt, internal linking, speed. Get the foundation wrong and every later article leaks, so experienced hands pay off here.
- Repetition (operations) — case notes, FAQs, keeping prices and specs current. Outsource this and tone and accuracy drift. But it demands consistent time.
AEO and GEO come down to one thing: is your information stated clearly enough for an AI answer to quote it? Committing to plain facts — price, who it's for, turnaround, service area — is work only your team can sign off on.
How do you self-assess whether your team can do it?
Run through the list below. If more than half are "no," DIY will start but not survive. If most are "yes," you probably don't need an agency at all.
- Can you edit and deploy your own HTML or templates?
- Do you own the Search Console (and local search console) properties yourself?
- Do you know what structured data is, and have you ever validated it?
- Can one named person commit a fixed 2–4 hours per week for three months or more?
- Have you recorded what ChatGPT, Gemini or Claude currently say about your category?
- Is there a person — not a tool — assigned to write?
- Can you define, yourselves, what "better in three months" means?
Can you outsource only half of it?
Yes, and for small teams that's usually the realistic path: buy the diagnosis and the initial build, keep content and updates in-house. Technical foundations are built once and used for years; content has to keep coming.
That's how SAENRU structures its SEO·AEO·GEO consulting. A measured diagnostic report is KRW 190,000 (5 business days), and you're free to take the report and execute internally. If you continue to a build, packages start at KRW 3.6M, monthly operations start at KRW 1.47M/month, and the diagnostic fee is fully credited against a build contract (all prices exclude VAT). If you don't have a site yet, SAENRU Studio starts at KRW 2.7M for a website in about two weeks, handed over as a GitHub repository. Our own homepage is a worked example: raw HTML with JSON-LD and llms.txt built in, so you can inspect the source.
What mistakes come up most often?
Failure points look the same whether you build or buy. Check these before signing anything or writing a plan.
- Handing over account and repo ownership — when the contract ends, so does your data. Own it; delegate access only.
- Starting without a baseline — if you never recorded day-one visibility and citations, you can't prove anything three months later.
- Counting articles as results — AI answers respond to factual clarity more than volume. Five specific pages beat twenty vague ones.
- Treating DIY as free — staff hours are a cost. Three hours a week for three months may not be cheaper.
- Choosing a vendor on ranking promises — search and AI answers have too many variables outside anyone's control. Prefer whoever explains measurement.
In short: keep judgment inside, buy only as much construction as you need, and run the repetition yourself. Either way, the first task is identical — write down where you stand today.