What is SEO and how does it work?

Are you at the start of your Search Engine Optimization (SEO) journey? Maybe you’ve heard that SEO can help drive traffic to your website and get you higher rankings on search engines.  

We’re here to remove any confusion or complications around SEO – with some insight on how AI fits into the picture. Once you understand the fundamentals, you can learn how to leverage SEO to drive traffic and generate quality leads.

What is Search Engine Optimization (SEO)?

Let’s start by asking an obvious question: what exactly is SEO? 

SEO stands for ‘Search Engine Optimization’, which is the process of getting traffic from free, organic, editorial, or natural search results in search engines. It aims to improve your website’s position in search results pages (SERPs). Remember, the higher the website is listed, the more people will see it.

There’s a great graphic created by Rand Fiskin, co-founder of Moz, that takes from Maslow’s Hierarchy of Needs’ pyramid. Fishkin’s ‘Mozlow’s Hierarchy of SEO Needs’ looks at how people should execute SEO. 

Top tip: SEO is no longer confined to search engines like Google or Bing. It’s also important for social networks such as YouTube and TikTok as people turn to social media to find information. 

What are the three pillars of SEO?

As a digital marketer, knowing how to get your brand, website, or company found by searchers is a core skill, and understanding how SEO is evolving will keep you at the top of your game. 

While SEO changes frequently in small ways, its key principles do not. We can break SEO into three core components or pillars that you need to be familiar with – and action regularly:

Technical Optimization: Technical Optimization is the process of completing activities on your site that are designed to improve SEO but are not related to content. It often happens behind the scenes. A simple example of technical optimization is submitting your sitemap to Google. 

On-Page Optimization: On-Page Optimization is the process of ensuring the content on your site is relevant and provides a great user experience. It includes targeting the right keywords within your content and can be done through a content management system like WordPress, Wix, Drupal, Joomla, Magento, or Shopify.

Off-Page Optimization: Off-Page Optimization is the process of enhancing your site’s search engine rankings through activities outside of the site. This is largely driven by high-quality backlinks, which help to build the site’s reputation. 

How do search engines actually work?

Search engines are used by people when they have a query and are searching online for the answer. 

Search engine algorithms are computer programmes that look for clues to give searchers the exact results they are looking for. Search engines rely on algorithms to find web pages and decide which ones to rank for any given keyword. Remember there’s also social media algorithms to consider for search. 

Step 1: Search Engine Crawling

The first step is crawling. Search engines send out web crawlers to find new pages and record information about them. We sometimes call these web crawlers ‘spiders’,‘robots’ or Googlebots. 

Their purpose is to discover new web pages that exist, and to periodically check the content on pages they’ve previously visited to see whether they’ve changed or been updated.

Search engines crawl web pages by following links they’ve already discovered. So if you have a blog and it’s linked from your homepage, when a search engine crawls your homepage, it will then look for another link and may follow the link to your new blog post.

Step 2: Search Engine Indexing

The second step is indexing. Indexing is when a search engine decides whether or not it is going to use the content that it has crawled. If a crawled web page is deemed worthy by a search engine, it will be added to its index. 

This index is used at the final ranking stage. When a web page or piece of content is indexed, it is filed and stored in a database where it can later be retrieved. Most web pages that offer unique and valuable content are placed into the index. A web page might not be placed in the index if:

  • The content is considered duplicate
  • The content is considered low value or spammy
  • It couldn’t be crawled
  • The page or domain lacked inbound links

Step 3: Search Engine Ranking

The third step is really the most important, and that is ranking. Ranking can only happen after the crawling and indexing steps are complete. So once a search engine has crawled and indexed your site, your site can be ranked.

There are more than 200 ranking signals that search engines use to sort and rank content, and they all fit under the three pillars of SEO: technical optimization, on-page optimization, and off-page optimization.

Some examples of signals that search engines use to rank web pages are:

  • Keyword in title tag – Whether the keyword or a synonym was mentioned on the page and within the title tag
  • Loading speed – Whether the web page loads quickly and is mobile-friendly
  • Website reputation – Whether the web page and website is considered reputable for the topic being searched for
  • Backlinks – the quantity and quality of backlinks to a web page
  • Content quality and relevance – Is the content valuable and relevant to the website’s target audience?
  • Mobile friendliness – Are pages, content and images optimized for mobile?  

If you’re looking for agency support in the areas of SEO, content marketing and paid media, get in touch with Balliu Solutions

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