Glossary · SEO & AI searchTOFU
SEO (Search Engine Optimisation)
The short answer
SEO (Search Engine Optimisation) is the practice of improving a website so search engines understand it, trust it and show it for relevant searches. Unlike paid search, you don't pay per click — but you invest time and expertise to earn visibility.
Modern SEO has three pillars, plus a fourth that has grown in importance:
The pillars
- Technical — can search engines crawl, render and index the site quickly and correctly?
- Content — does each page genuinely answer a specific query better than alternatives?
- Authority — do credible sources link to and mention you?
- AI visibility — are you cited when AI systems answer questions? See AEO.
How SEO differs from paid search
Paid search stops when the budget does. SEO compounds: a page that ranks can drive traffic for years. The trade-off is time — meaningful results usually take months.
SEO vs SEM vs AEO
| Term | Meaning |
|---|---|
| SEO | Earning unpaid visibility in search results |
| SEM | Search engine marketing — usually paid search ads |
| AEO | Answer engine optimisation — being the extracted or cited answer |
| GEO | Generative engine optimisation — being cited in AI-generated answers |
See our SEO guide and SEO services.
SEO in practice
A clinic improves its Business Profile, builds treatment pages and earns local links. Calls from organic search rise over the following months.
SEO in India
Indian searchers increasingly use mobile, voice and regional languages. Fast mobile pages, local SEO and content in the languages customers use are major opportunities.
Frequently asked questions
How long does SEO take?
Technical fixes can show results within weeks; content and authority usually take three to nine months to compound.
Is SEO still worth it with AI answers?
Yes. The foundations that earn rankings — expertise, structure, trust — are the same ones that earn AI citations.
What are the first steps in SEO?
Fix technical issues, map keywords to pages, improve your most important pages and set up Search Console.
Can SEO be done without a blog?
Yes. Service, product, category and location pages are often more important than blog posts for business results.
How is SEO different from SEM?
SEO earns organic visibility; SEM usually refers to paid search advertising.
Is SEO worth it for small businesses in India?
Yes — especially local SEO and Google Business Profile for local customers.
Related terms
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