The SEO Guide: How Search Engine Optimization Works and What to Do First

Crawl, index, rank, click: SEO in four verbs

Google's starter guide defines SEO as helping search engines understand your content, and helping people find your site and decide whether to visit it. Strip away the jargon and every SEO task serves one of four verbs. A search engine has to crawl the page, which means fetch it. It has to index it, which means read it and decide it is worth storing. It has to rank it above the alternatives for a real search. And a person has to click, which depends on what your listing promises.

Each verb fails differently. A page blocked by robots.txt never gets crawled. A page that duplicates five others gets crawled and quietly left out of the index. A thin page gets indexed and ranks on page four. A strong page ranks third and loses the click to a better title. Our guide to how search engines work follows one page through every stage, and Google's free Search Console is where you see which stage is failing for yours.

Technical, on-page and off-page: the three layers

SEO work sorts into three layers. They depend on each other in one direction: brilliant content on a site Google cannot crawl earns nothing, and links pointing at a page that answers the wrong question are wasted. Most small business sites have one layer badly neglected, and the neglected one is rarely the one the owner is worried about.

A fourth idea sits across all three: trust. Google's raters look for experience, expertise, authoritativeness and trustworthiness, and our E-E-A-T guide shows what a small business can display to earn it. Google's own starter guide is clear that E-E-A-T is not itself a ranking factor, which is worth knowing before anyone sells you an E-E-A-T package.

The order a small business should work in

Most wasted SEO money is spent in the wrong order: blog posts before the site is indexable, links before the service pages exist, a ranking report before conversion tracking. This sequence is our practice, not a Google rule, and it assumes a local business with one site and a few dozen pages.

1. 1

   Week one: get the instruments working

   Verify the site in Google Search Console and Bing Webmaster Tools, submit the sitemap, and confirm that calls and form fills are tracked. Without this, every later decision is a guess.

2. 2

   Weeks two and three: clear the blockers

   Read the Page indexing report. Remove stray noindex tags and robots.txt blocks, fix broken redirects and duplicate URLs, and check speed and the phone layout. A free website audit finds the common faults in minutes.

3. 3

   Month one: claim the local listings

   For a business that serves an area, the Google Business Profile is the listing that shows in the map results, and it deserves the same care as the website. Our local SEO guides and the map pack audit cover it.

4. 4

   Months one to three: one strong page per service

   Each service and each main town you serve gets a page that answers the search better than the current top result, with a clear title, real photos and prices where you can publish them.

5. 5

   Month three onward: earn reputation

   Ask every happy customer for a review, join the associations and supplier directories that link to members, and give local press something worth covering.

6. 6

   Every month after: measure, fix, publish

   Watch a handful of numbers, fix what broke, refresh what decayed, and add pages for questions customers keep asking. SEO maintenance is the routine and SEO KPIs are the numbers.

Google's starter guide warns that some changes show in hours and others take several months. Our page on how long SEO takes sets realistic expectations, and the SEO basics guides cover the first questions owners ask.

Every guide in this section, mapped to the problem it solves

Nobody needs to read this section front to back. Find the sentence that sounds like your week, and start there.

Guides appear on a schedule through the autumn, so a few links above may show as plain text until their release day.

Myths Google has already answered

A remarkable share of SEO advice contradicts Google's published documentation, which is free and written in plain English. Before paying for any tactic, check it against what Google has said in writing.

Our guides to keyword stuffing and white hat SEO cover what Google's spam policies forbid. User behavior and SEO covers the murkier question of clicks and engagement, where public evidence is thinner and the claims are louder.

AI answers changed the job, not the foundation

The newest anxiety is that AI made SEO obsolete. The facts are more interesting. Google said in May 2026 that AI Overviews had over 2.5 billion monthly users, and its guidance says optimizing for its generative AI features is still SEO: those answers are grounded in pages pulled from the same Search index by core ranking systems. A page needs to be indexed and eligible for a snippet to be cited, with no extra requirements.

What changed is the click. Pew Research Center found that in March 2025 users clicked a traditional result on 8% of Google visits that showed an AI summary, against 15% of visits without one. Being cited inside the answer now matters alongside ranking beneath it, and ChatGPT, Perplexity and Copilot each draw on their own sources. Our generative engine optimization section covers that layer, GEO vs SEO explains where the two overlap, and is SEO dead answers the obituary with numbers.

The machines that write the answers still read the web first. SEO is how you make sure they read you.

Doing SEO yourself, and the point where hiring pays

An owner with a free afternoon a week can do a lot. Search Console, Bing Webmaster Tools and Google's documentation cost nothing. The learn SEO plan takes thirty days, and Google search operators turn the search box into a free research tool. In a quiet market, a single-location business can get a long way on the owner's own work.

• Do it yourself when the site is small, the competition is light, and you enjoy the work more than you value the hours.
• Hire help when the technical layer needs code changes, when you serve several towns against well-funded competitors, or when the hours come out of billable work.
• Hire carefully: anyone who guarantees rankings, will not say what they do, or sells links by the hundred is a risk, not a shortcut.
• Automate the boring parts: monitoring, alerts and reports are easy to hand to software, judgment is not.

Our guides to hiring an SEO, SEO automation and topical authority help with each choice. If you would rather have it done, DataCram's SEO service runs monthly programs with a defined scope and no long contract. Programs start at $625 a month, and most local businesses land between $625 and $2,250, per our SEO pricing page. The tier is set after an audit, not before. For an ongoing arrangement, see the SEO retainer.