Six Cube Technologies

Understanding SEO: How It Works and Why It Matters

A plain-language guide to SEO — how search engines crawl, index and rank pages, the main parts of SEO, and why it matters for business growth.

 /  3 min read  /  Six Cube Technologies

Search engine optimisation (SEO) is the work of making your website easier to find in search results for the things your customers are looking for. When it's done well, it brings a steady flow of visitors who already want what you offer — without paying for every click. Here's how it works, in plain language.

How search engines work

Search engines like Google do three things:

  1. Crawl — automated programs follow links across the web and discover pages.
  2. Index — the pages they find are analysed and stored in a huge database.
  3. Rank — when someone searches, the engine picks the pages it thinks best answer the query and orders them.

SEO is about making sure your pages can be crawled and indexed, and that they're the best answer for the searches you care about.

The three parts of SEO

Technical SEO

This is the foundation. If search engines can't access or understand your site, nothing else matters. Technical SEO covers:

  • Fast loading on mobile and desktop
  • A secure (HTTPS) site
  • A clear site structure and internal links
  • An XML sitemap and a correct robots.txt file
  • No broken pages, duplicate content or redirect chains

On-page SEO

This is about each page's content and how it's presented:

  • A unique, descriptive title tag and meta description
  • One clear main heading and logical subheadings
  • Content that fully answers the searcher's question
  • Descriptive image alt text and compressed images
  • Links to related pages on your own site

Off-page SEO

Search engines treat links from other reputable websites as votes of confidence. Off-page SEO includes earning those links through useful content, partnerships, PR and directory listings — and, for local businesses, a complete Google Business Profile with genuine reviews.

Keywords: matching what people search

Keyword research tells you the words people use when looking for your products or services, how often they're searched and how competitive they are. Good SEO maps each important search to the page best placed to answer it. Instead of chasing one broad term like "web development", target specific phrases such as "web development company in Gurugram" where the intent is clear and you can realistically rank.

Why SEO matters

  • It's always on. Once a page ranks, it keeps bringing visitors without paying per click.
  • It reaches people with intent. Searchers are actively looking for a solution.
  • It builds trust. Many people trust organic results more than ads.
  • It compounds. Each piece of quality content adds to your site's authority over time.

How long does SEO take?

SEO is a long-term investment. Technical fixes can show results within weeks, but ranking for competitive terms usually takes several months of consistent work. That's why many businesses run PPC ads for immediate traffic while SEO builds.

Measuring SEO

Track organic traffic, keyword rankings, enquiries from organic visitors and the number of quality sites linking to you. Google Search Console and Google Analytics are free and show most of what you need.

Next steps

Our monthly SEO packages cover keyword research, technical audits, on-page optimisation, local SEO, content and reporting. If you'd like to know where your site stands today, get in touch and we'll take a look.

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