# What Is Search Engine Optimisation? SEO Explained for Business Owners Source: https://www.lucidmedia.co.nz/blog/search-engine-optimization-or-seo/ SEO Search engine optimisation and SEO are the same thing. Here's how it works, what moves rankings, and how to start getting results for your business. [Jason Poonia](https://www.lucidmedia.co.nz/blog/search-engine-optimization-or-seo/#author) | 19 October 2026 | 13 min read ![What Is Search Engine Optimisation? SEO Explained for Business Owners](https://www.lucidmedia.co.nz/images/blog/search-engine-optimization-or-seo-featured.webp) ## Key Takeaways - **SEO and search engine optimisation are the same thing.** “SEO” is simply the abbreviation. American English spells it “optimization”; New Zealand and British English spell it “optimisation”. The practice is identical. - **Google ranks pages based on three fundamentals:** whether the content genuinely matches what the searcher wants, whether the site is technically sound enough to crawl and index, and whether reputable sites link to it. - **An SEO score of 75 is not a universal benchmark.** Site audit scores from tools like Semrush or Ahrefs measure technical health on their own criteria. What matters is resolving the flagged issues, not the number. - **The fastest wins are almost always on pages you already have.** Pages sitting in positions 4 to 20 on Google can often reach the top three with focused content improvements, producing significantly more traffic without new pages. - **Backlinko is one of the most cited independent SEO research resources on the web.** Free high-quality SEO education is available from Backlinko, Ahrefs Academy, and Google’s own Search Central documentation. - **SEO is a long-term investment.** A new website in a competitive market typically takes six to twelve months before meaningful organic results appear. Established sites in less competitive niches can move faster. --- Search engine optimisation, or SEO, is the practice of making your website appear in Google’s search results when people search for what you offer. The “optimisation” part is simply a spelling difference between American and British English, and SEO is the abbreviation. They mean exactly the same thing. The simplest way to understand what SEO does: when someone types “commercial lawyer Auckland” or “best café Wellington” into Google, Google decides which websites to show them and in what order. SEO is the work of earning one of those positions for searches relevant to your business. That is where the majority of web traffic comes from. Not social media, not email, not word of mouth online. Organic search. And the sites that rank near the top collect the large majority of clicks for a given term, while everything beyond the first page gets close to nothing. ## How Google Actually Decides What Ranks Google uses hundreds of signals to rank pages, but the fundamentals come down to three things. **Relevance.** Does your page actually answer what the searcher is looking for? This goes beyond whether a page contains the right keywords. Google’s systems have become sophisticated enough to understand the intent behind a search. If someone types “how long does a fence post need to be”, they want practical dimensions, not a page selling fence posts. If your page sells fence posts but also contains a genuinely useful guide answering that question, you can rank for the query and capture commercial intent from visitors who are close to buying. **Authority.** Do other websites link to yours? A link from another site is, in Google’s model, a vote of confidence. Not all links carry equal weight. A link from a well-established, topic-relevant publication carries far more signal than one from a newly created directory nobody visits. Building a credible backlink profile is one of the reasons SEO takes time: it requires other sites to recognise your content as worth citing. **Technical quality.** Can Google actually crawl, read, and index your pages? A well-written page that Google cannot access is invisible. Technical SEO covers the foundations: site speed, mobile usability, clean URL structure, correct use of canonical tags, absence of crawl errors, and the structured data that helps Google understand what each page is about. Google’s published framework for evaluating content quality is called E-E-A-T: Experience, Expertise, Authoritativeness, and Trustworthiness. It is not a direct ranking score, but it describes the quality signals Google’s systems are trying to detect. Content written by someone with genuine first-hand experience in a field consistently outperforms generic information that could have been produced by anyone with access to a search engine. ## The Three Pillars of SEO Most SEO work falls into three areas. Understanding which pillar is weakest on your site tells you where to focus first. ### On-Page SEO On-page SEO covers everything on the pages themselves: the content, the headings, the title tags, the meta descriptions, and the internal linking structure. The single most impactful on-page task for most business websites is making sure each page clearly targets one specific topic and genuinely serves the intent behind searches for that topic. That sounds simple. In practice, most small business websites have pages that are too generic, too thin, or structured around what the business wants to say rather than what a potential customer needs to know. A title tag is the blue link text that appears in Google’s search results. It is one of the most direct signals you send about what a page is about. Getting it right, with the target keyword present and the framing compelling enough to earn a click over the surrounding results, is foundational. Similarly, a well-written meta description, the short text below the title in search results, does not directly affect rankings, but it does affect whether people click. Those clicks matter. Internal linking is underused on most small business sites. Linking between related pages helps Google understand which pages are most important and how topics connect. It also keeps visitors on your site longer, which feeds user behaviour signals back to Google. ### Technical SEO Technical SEO is about the infrastructure your content sits on. If your site loads slowly, has large numbers of broken links, serves a poor mobile experience, or has pages blocked from indexing by misconfigured settings, none of your content work will perform as well as it should. The two technical issues that cause the most damage in practice are page speed and crawlability. A site that takes more than three seconds to load on mobile is losing a significant proportion of visitors before they read a word, and slower sites rank lower on mobile searches. Crawlability issues, where Google cannot access key pages because of robots.txt errors, noindex tags placed incorrectly, or broken internal link chains, are less common but devastating when they occur. Google Search Console is the free tool that surfaces most critical technical issues. If a page is not being indexed, Search Console will usually tell you why. Setting it up is a mandatory first step before any other SEO work. ### Off-Page SEO and Backlinks Off-page SEO is primarily about backlinks: links from other websites pointing to yours. Google treats these as endorsements of your content’s quality and relevance. A site with a strong backlink profile from authoritative sources in its industry will rank more competitively than an otherwise equal site without those links. Building backlinks is the hardest part of SEO to shortcut. Tactics that work consistently: creating content genuinely worth citing (original data, definitive guides, useful tools), getting listed in credible industry directories, earning coverage in local news or trade publications, and building relationships with businesses in complementary niches. Tactics that backfire: buying links from low-quality networks, using automated link building software, or over-optimising the anchor text of inbound links. Google’s Penguin algorithm is specifically designed to detect and penalise manipulative link patterns, and it is effective at doing so. For most New Zealand businesses, the backlink profile is the limiting factor on rankings, and it is the area that benefits most from consistent long-term effort rather than one-off campaigns. ## What Does an SEO Score of 75 Mean? If you have run a site audit through Semrush, Ahrefs, Moz, or a similar platform, you have probably seen an “SEO score” or “site health score” presented as a number out of 100. A score of 75 is not a universal benchmark, and it does not directly correlate with how well your pages rank. These scores measure technical site health according to the tool’s own audit criteria. A score of 75 from Semrush and a score of 75 from Ahrefs are not measuring the same things. Both are useful diagnostics, but they are not interchangeable. What matters is not the number itself. It is the specific issues the audit surfaces. A technical site audit will typically flag a mix of critical issues (broken internal links, pages missing title tags, indexing errors), warnings (pages with duplicate meta descriptions, images without alt text, slow load times), and notices (minor items with minimal impact). Work through the critical issues first, then the warnings. The score improves as a consequence of that work. The businesses that get the most from these tools are the ones that use audits to maintain a clean technical baseline, reviewing quarterly and resolving new issues as they appear, rather than treating the score as a target in itself. ## The Best Tools for SEO The toolkit that covers almost everything a serious SEO campaign requires: **Google Search Console** is free and mandatory. It is the only tool that shows you real data from Google: which queries triggered impressions for your pages, what your actual click-through rate was, which pages have indexing errors, and whether structured data is being read correctly. Every other tool estimates. Search Console measures. **Ahrefs or Semrush** handles the work Search Console cannot: keyword research, backlink analysis, competitor research, technical site audits, and rank tracking. Both are professional-grade platforms used by agencies worldwide. Ahrefs has the stronger backlink index. Semrush has better paid search intelligence if you run Google Ads alongside organic. Both start at around $130 to $140 USD per month. For a full breakdown of which platform suits which situation, [the SEO tools guide covers it in detail](https://www.lucidmedia.co.nz/blog/best-seo-tool/). **Screaming Frog** is a desktop crawler that reports the technical state of every URL on your site. The free version handles up to 500 URLs, which covers most small business sites without any cost. That three-tool stack handles the core work. Add specialist tools when a specific need arises, not before. ## Learning SEO: Free Resources Worth Your Time There is no shortage of SEO education available at no cost. The challenge is quality: much of what circulates online is shallow, outdated, or structured around generating traffic rather than being genuinely accurate. **Google’s Search Central documentation** (developers.google.com/search) is the authoritative reference for how Google wants sites structured and what it rewards. It is technical in places, but the core guidance sections are accessible to business owners without a technical background. **Backlinko** (backlinko.com) was founded by Brian Dean and has become one of the most cited independent SEO resources on the web. It publishes in-depth research on ranking factors, click-through rates by search position, and algorithm updates, backed by large-scale data analysis rather than opinion. The writing is clear, the methodology is transparent, and posts are updated when the landscape shifts. If you want to understand what actually moves rankings rather than what people claim moves rankings, Backlinko is worth starting with. **Ahrefs Academy** and **Semrush Academy** both offer structured free courses on SEO, from fundamentals through to advanced strategy. Both platforms have a commercial interest in you understanding SEO well enough to value their tools, which means the courses are substantive rather than superficial. Ahrefs Academy in particular is one of the more rigorous free curricula available online. None of these require payment to access foundational content. The investment is time, not money. ## What Realistic SEO Timelines Look Like One of the most common mistakes in SEO is expecting results on the same timeline as paid advertising. A Google Ads campaign can drive traffic on day one. SEO does not work that way. For a new website in a competitive market, six to twelve months is a realistic window before meaningful organic traffic begins to build. For an established website in a less competitive niche, improvements can show up in two to three months. For a site with significant technical problems being resolved, sometimes improvements appear within weeks once Google recrawls the affected pages. The variables that most affect timeline: **Domain age and existing authority.** A site with ten years of history and existing backlinks will respond faster to on-page changes than a brand-new domain. Google needs time to establish trust in new sites. **Competition in the niche.** Ranking for “plumber Auckland” is a fundamentally different challenge from ranking for “industrial valves Hamilton”. The competitive landscape sets the bar. **Content quality and volume.** A website with fifty well-written, focused pages on relevant topics will rank faster and more broadly than a five-page brochure site, all else being equal. **Technical health.** Sites with significant crawl issues, slow load times, or poor mobile experience will underperform regardless of content quality. Fixing the technical foundation first often produces the fastest visible improvement, because you are removing a ceiling that was suppressing everything else. The businesses that see strong long-term results from SEO treat it as infrastructure rather than a campaign. The work compounds. A backlink profile built over three years is much harder to compete against than one built over three months. The content library built through consistent publishing becomes an asset that generates enquiries indefinitely, long after the original work was done. That is the fundamental difference between SEO and paid ads in the long run: you stop paying for ads and the traffic stops. You stop building SEO and the traffic continues. ## Frequently Asked Questions ### What is the difference between SEO and search engine optimisation? There is no difference. SEO is the abbreviation of search engine optimisation. American English spells it “optimization”; New Zealand, British, and Australian English spell it “optimisation”. The tools, the strategies, and the outcomes are identical regardless of which spelling you use. ### What are the best SEO tools? The starting point is Google Search Console, which is free and gives you real data from Google. Beyond that, Ahrefs and Semrush are the two leading all-in-one platforms, each starting at around $130 to $140 USD per month. For technical site crawls, Screaming Frog’s free tier handles most small business sites. A detailed comparison is in the [SEO tools guide](https://www.lucidmedia.co.nz/blog/best-seo-tool/). ### Is 75 a good SEO score? A site audit score of 75 out of 100 means your site has some technical issues worth addressing, but there is no universal standard. Different tools calculate this score differently and weight different issues differently. What matters is not the number but the specific issues flagged. Resolve critical errors first, then work through the warnings. The score improves as a consequence. ### What is Backlinko? Backlinko is an independent SEO research and education site founded by Brian Dean. It is known for publishing large-scale studies on ranking factors, click-through rates by search position, and algorithm behaviour, backed by data rather than opinion. It is one of the most frequently cited SEO resources among practitioners and industry press. The free content is substantive at every level of SEO knowledge. ### Is there a free SEO course available? Yes. Ahrefs Academy and Semrush Academy both offer structured free courses on SEO from beginner to advanced. Google’s Search Central documentation is the authoritative free reference for technical SEO. Backlinko covers strategy and ranking research in depth. A solid working knowledge of SEO is achievable without paying for any courses. --- If you want to know where your site stands right now and what the highest-priority changes would be, a 30-minute strategy session covers it. **[Book a free call with Lucid Media](https://lucidmedia.co.nz/)** and bring your Search Console access along. Written by ### Jason Poonia Jason Poonia is the founder and Managing Director of Lucid Media, helping New Zealand businesses grow online since 2018. With over 7 years delivering results for clients across New Zealand and internationally, Jason combines technical expertise with proven marketing strategies to help businesses attract more customers and build scalable systems. Background in Computer Science from the University of Auckland. [LinkedIn](https://www.linkedin.com/in/jasonpoonia/) [Instagram](https://www.instagram.com/jason.poonia/)