Complete Playbook — 12 min read

Search Engine Optimisation (SEO)

A strategic guide to drive sustainable organic growth — built for the era where Google, ChatGPT, and Perplexity all compete for your buyer's first click.

Mihir Harchekar
Mihir Harchekar
Founder - Search Indicators
12 MIN READ
FEB 2026
Search Engine Optimisation (SEO)
01FOUNDATION

What is SEO?

SEO (Search Engine Optimisation) is the discipline of increasing your brand's visibility across every search surface your buyers use — Google, ChatGPT, Perplexity, YouTube, Reddit, and beyond. It's the compounding strategy that makes your brand discoverable at the exact moment buyer intent is highest.

Modern SEO isn't just about ranking on page one of Google. It's about being present in AI-generated overviews, cited in LLM responses, recommended in social search, and surfaced across the full multi-channel buyer journey.

SEO definition: The art and science of engineering your brand into every search surface your buyers use — so you appear at the right moment, for the right query, with a message that drives action.

Whether a buyer types a query into Google, asks ChatGPT for a recommendation, reads a Reddit thread, or watches a YouTube review — your brand's presence across those surfaces determines whether you control or surrender the buyer journey.

Modern SEO requires you to apply efforts across every search touchpoint: humans, AI agents, and algorithm-driven recommendation systems. You deliver intent-matched content, capture high-value queries, and use compounding signals to grow your digital footprint month over month.

02GROWTH CASE

Why is SEO Critical for Growth Marketing?

Unlike paid channels that stop the moment you pause budget, SEO compounds. Every piece of content, every earned link, every technical fix — adds to a growing asset that works around the clock.

Cost-Effective Acquisition
SEO is a high-leverage growth channel — traffic and leads compound over time. Once a page ranks, it keeps delivering without incremental spend each month.
60% lower CAC vs paid over 12 months
Equity That Doesn't Erode
Unlike PPC that dies the moment you pause it, SEO equity persists. High-authority pages generate traffic for years — your past work keeps paying dividends.
Evergreen returns — pages rank for 3–5+ years
Full Funnel Impact
SEO touches every stage — awareness, consideration, and decision. A well-built content architecture maps to every buyer intent signal across the entire journey.
TOFU → MOFU → BOFU in one compounding channel
Cross-Platform Amplifier
Strong SEO signals amplify every other channel. When your brand has authority and trust signals, email open rates improve, paid CTR increases, and social converts better.
Brand authority lifts all channel conversion rates
03FRAMEWORK

The 4 Core Pillars of SEO

A comprehensive framework for building sustainable organic visibility. Each pillar reinforces the others — neglect one and the whole system underperforms.

Technical

The invisible infrastructure that determines whether search engines and AI crawlers can properly discover, understand, and trust your website. Get this wrong and nothing else matters — you can have the best content in the world but if it can't be crawled, it won't rank.

FOUNDATIONAL — Fix before anything else
Crawl budget management & XML sitemaps
Core Web Vitals: LCP, CLS, INP
Schema markup & structured data
Next-gen image formats & page speed
Mobile-first indexing compliance
Canonical tags & duplicate content control
HTTPS, security & crawl error resolution

Content

Content is how you earn trust with both search engines and buyers. AI search engines in particular cite sources they deem authoritative, accurate, and uniquely valuable. E-E-A-T signals — Experience, Expertise, Authoritativeness, Trustworthiness — are now non-negotiable for both Google and LLMs.

HIGH LEVERAGE — Compounds month over month
Keyword intent mapping & topic clustering
Buyer journey content architecture
E-E-A-T: first-hand experience + expertise signals
Topical authority & content cluster depth
Internal linking & content hierarchy
AI-citation optimised formats (GEO)
Content freshness & quarterly refresh cycles

On-Page

The fine-tuned optimisation of individual pages — ensuring every element signals relevance and intent clearly to both search engines and the human visitor. This is where SEO and CRO meet: pages that rank must also convert.

CONVERSION-CRITICAL — SEO meets CRO
Title tags & meta descriptions (CTR-optimised)
H1–H6 heading structure & semantic hierarchy
URL structure & slug optimisation
Image alt text & asset optimisation
Semantic keyword placement & LSI terms
CTA placement for BOFU conversion
Featured snippet & answer-layer optimisation

Off-Page

Authority you earn beyond your own website. In the AI search era, off-page signals — brand mentions, citations, links, and entity associations — determine whether AI engines trust your brand enough to recommend it when buyers ask questions.

AUTHORITY-DEFINING — Shapes AI trust
Editorial backlink acquisition
Digital PR & brand mention campaigns
Topical authority & entity signal building
Partner & co-marketing link strategy
Podcast & media appearances (GEO signals)
Social amplification & UGC signals
Link profile health & disavow management
04Glossary

Simplifying the SEO Glossary

The SEO landscape has exploded with new terminology — especially as AI search reshapes discovery. Here's what every growth marketer needs to know, explained plainly.

Term
Full Form
What It Means
Why It Matters
GEO
Generative Engine Optimisation
Optimising content and brand signals so AI engines (ChatGPT, Perplexity, Gemini) cite and recommend your brand in generated responses.
40%+ of queries in some categories are now AI-answered. Invisible here = invisible to a growing buyer segment.
AEO
Answer Engine Optimisation
Structuring content to appear directly in answer boxes, featured snippets, and AI overviews — capturing zero-click intent.
Zero-click results still drive brand recall, trust, and assisted conversions — even without the click.
E-E-A-T
Experience, Expertise, Authoritativeness, Trust
Google's quality framework for evaluating content credibility. Requires demonstrable first-hand experience — not just information aggregation.
Core to how Google and AI engines decide which sources to trust and cite. Non-negotiable for YMYL categories.
SoV
Share of Voice
The percentage of search impressions or AI citations your brand captures relative to the total available in your category.
The only metric that contextualises your SEO performance against competitors — not just in absolute terms.
LLM
Large Language Model
The AI systems (GPT-4, Claude, Gemini) powering generative search. They learn from training data — your content needs to be in that data landscape.
Understanding LLMs helps you create content that gets cited rather than ignored in AI-generated responses.
Your brand's AI search presence — measured in 48 hours.
We'll show you exactly where you're being cited, where you're invisible, and what to fix first.
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05PLAYBOOK

How to Build a Winning SEO Strategy

Six interconnected moves — executed in sequence, measured continuously, and iterated relentlessly. Not a checklist. A compounding system.

01
Maximise Search Surface Coverage
Map every surface your buyers use — Google, AI overviews, YouTube, Reddit, Perplexity. Build presence on all of them, not just Google. Surface coverage equals total addressable discovery — the brands that win are everywhere their buyers look.
GEOMulti-SurfaceDiscovery
02
Create High-Performance Content Assets
Build content that earns rankings and converts. Every piece should serve a specific intent stage, answer a specific question, and have a clear next action. Quality beats volume — one exceptional page outperforms ten thin ones every time.
E-E-A-TIntent MappingCRO
03
Optimise for Conversion at Every Stage
SEO without CRO is traffic without revenue. Every high-intent page needs a conversion path — whether that's a demo request, email capture, or content download. Map CTAs to buyer intent, not just page type.
CROBOFURevenue Attribution
04
Build Topical Authority at Scale
Dominate your niche by covering every related topic deeply and interconnectedly. Topical authority tells both Google and AI engines: this brand is the most credible source on this subject. Breadth + depth + interlinking = authority that AI cites.
Topical AuthorityEntity SEOAI Trust
05
Decide with Data — Not Assumptions
Every SEO decision should be grounded in intent data, crawl data, and conversion data. Use GSC, Ahrefs, and AI visibility trackers to identify what's working, what's broken, and where to invest next.
AnalyticsGSCAI Tracking
06
Adapt as Search & Buyer Behaviour Evolve
Search evolves faster than ever. AI overviews, zero-click results, and LLM-powered discovery are reshaping how buyers find brands monthly. Build quarterly review cycles — audit, adapt, and iterate before your competitors do.
AgilityAI SearchQuarterly Iteration
06MEASUREMENT

Success Metrics That Actually Matter

Most SEO reports track the wrong things. Here are the four metrics that connect SEO directly to business outcomes — not vanity numbers your leadership team will dismiss.

Search Surface Coverage
What % of your target queries result in your brand appearing — across Google, AI overviews, featured snippets, and competitor comparisons.
Google organic
78%
AI engine citations
52%
Assisted Conversions
SEO's role in the customer journey — including pages visited before a conversion, even if organic wasn't the final touchpoint that gets the credit.
Assisted conversion rate
65%
Revenue attribution
44%
Crawl Efficiency
What % of your pages Google and AI bots can actually discover, crawl, and index — the baseline that determines whether anything else you do even matters.
Pages indexed vs published
88%
Core Web Vitals pass
91%
Market Share of Voice
Your brand's share of total search impressions in your category — across organic, AI citations, and featured placements — relative to every competitor.
Category SoV (organic)
34%
AI citation SoV
22%
07CLOSING THOUGHT

The Mindset Shift SEO Requires

SEO isn't a technique — it's a long-term growth engine with compounding returns when done right. The biggest mistake brands make is treating SEO like a campaign: a burst of activity, then waiting for results. That's not how it works.

SEO requires you to act with urgency in execution but invest with patience on returns. The brands that win organically are the ones who commit to the system — not just the tactics.

Whether you're a founder, CMO, or Growth Marketer, your SEO efforts have to connect directly to business outcomes. Traffic is a vanity metric. What matters is qualified pipeline, reduced CAC, and a brand share of voice that grows even when you sleep.

The shift is from "SEO as a checkbox" to SEO as infrastructure — as fundamental to your growth stack as your CRM, your sales team, or your product itself.

The key realisation: Every competitor you have is also investing in SEO. The only question is whether you're compounding faster than they are — or falling further behind while they build the lead.
"SEO is about showing up at the right moment, for the right customer, with a message that connects."
— Mihir Harchekar, Founder, Search Indicators
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