Most websites do not lose in Google because the business is weak.
They lose because the site is muddled.
The page says too much and too little. The structure is awkward. The important service page is buried. The site is slow on mobile. A competitor with a less impressive offer looks clearer, more established, and easier to trust, so they get the click.
That is where SEO starts to matter.
When people ask what are the 3 types of SEO, the answer is simple enough: On Page SEO, Off Page SEO, and Technical SEO. The mistake is thinking they sit in separate boxes. They do not. They behave more like three forces pulling on the same result.
One helps search engines understand the page.
One helps search engines trust the site.
One makes sure search engines can reach and process the whole thing properly.
If one is weak, the others have to compensate. That rarely ends well.
At Perth Digital Edge, this is not abstract. The way those three SEO types play out changes with the market. A clinic in Joondalup is competing in a search environment shaped by a major health and education precinct. The City of Joondalup describes Joondalup Health Campus as the largest health care facility north of Perth CBD, with the area positioned as a health and medical hub connected to research, training, and specialist care. That creates a search environment where trust markers, clarity, and comparison behaviour matter a great deal.
That local context matters because SEO is never just “do keywords better.” It is about making the site fit the way the market actually searches.
On Page SEO
On page SEO is what lives on your own website.
It covers the things people can see and read, but also the signals search engines use to work out what each page is for. That includes website content, page titles, title tags, meta descriptions, page headings, internal linking, image optimisation, category pages, product descriptions, and the broader layout of individual web pages.
Most weak on page SEO has the same smell. The page is broad, padded, and uncertain. It tries to rank for too many search queries at once. It says “we do everything” and ends up convincing neither users nor search engines that it is the best result for anything specific.
Good on page SEO feels different. It has a clear job. It knows which search intent it is serving. It uses relevant keywords without sounding like it was written for a robot. It helps search engines understand the topic and helps the user move toward the next step without having to decode the page.
This is where keyword research really earns its keep. Identifying relevant keywords is not just about search volume. It is about knowing which searches deserve their own page, which terms belong together, and which phrases sound attractive but are unlikely to bring the right visitors.
You can see this kind of clarity in the public Project Concrete case study from Perth Digital Edge. The published page says the campaign improved visibility for “Perth concreting services,” “residential concrete Perth,” and “commercial concrete solutions Perth,” and public summaries from Perth Digital Edge report a 312 per cent increase in traffic over the first three months, 62 conversions in the first month, and 14 first-page keywords in month one. The interesting part is not the headline number. It is the split between residential and commercial intent. In trade SEO, one broad “concreting services” page often blurs buyer intent. When those intents are separated cleanly, the page targets become sharper and the site becomes easier for search engines to interpret.
That is what on page SEO looks like when it is doing real work.
Off Page SEO
Off page SEO is everything away from your own site that shapes authority, trust, and reputation.
Most people hear that and think “backlinks.” That is understandable, but it is only part of the picture. Off page SEO also includes brand mentions, digital PR, local listings, online reviews, guest blogging, and the wider pattern of references to your business across other websites.
The reason this matters is simple. Search engines are trying to judge whether your site deserves to be surfaced above competing pages. Strong off page signals act like external corroboration. Reputable websites linking to you, mentioning you, or listing you consistently help reinforce that your business is real and relevant.
But this is also where the SEO industry has produced a lot of rubbish. Cheap packages promising hundreds of links, random directory drops, and spammy backlinks have trained plenty of business owners to distrust the whole topic. Fair enough.
Good off page SEO is much pickier than that. It is not about collecting links. It is about building the sort of website’s authority that matches the market you are in.
A Perth trade or service business may benefit from links and mentions from suppliers, industry associations, local business listings, and relevant regional publications. A hospitality or retail brand may need digital PR, social media engagement, local coverage, and stronger review site signals. An online store may need link worthy content and category-level authority rather than another generic guest post.
This is one reason the public Westside Auto Wholesale case study is more useful than the usual “we built links and rankings improved” line. Perth Digital Edge describes it as a combined SEO and AdWords campaign for a fixed-price used car business with a large inventory. In their public summaries, they mention geo-targeted campaigns aimed at southern Perth suburbs, ad groups split by vehicle category, and landing pages aligned to relevant stock and test-drive intent. That is not generic off page SEO. That is a site and campaign structured around how buyers actually compare vehicles and move toward enquiry.
That kind of detail matters because it shows the work is tied to commercial behaviour, not just vanity metrics.
Technical SEO
Technical SEO is the part that makes the rest of the strategy possible.
It covers the backend site factors that affect how search engines crawl, index, and process the site. That includes site architecture, XML sitemaps, broken links, redirects, structured data, crawl paths, indexation, mobile responsiveness, Core Web Vitals, and page speed.
This is the layer most business owners do not see until it goes wrong.
A page can have strong website content and still struggle if the site structure is clumsy. A service page can be worth ranking and still get overlooked if search engines have trouble crawling the site cleanly. Mobile users can abandon a page before reading it if the page speed is poor or the layout feels unstable.
Google’s own documentation on how search works, mobile-first indexing, and structured data all point in the same direction. The easier a site is to crawl and interpret, the easier it is for Google to understand what each page is about and where it belongs in search engine results pages.
This is why technical SEO can feel invisible when it is working and painful when it is not. It is not glamorous. It is foundational.
And it often shows up in the small things that pile up. Pages with duplicated metadata. Weak internal linking. Image files slowing down mobile load times. Bad redirects after site changes. Messy site architecture. None of those issues sound dramatic on their own. Together, they can quietly cap the site’s performance for months.
Why You Need All Three
This is the part that gets oversimplified most often.
On page SEO without off page authority can leave a site well-written but easy to outrank.
Off page SEO without strong pages can leave a site trusted but poorly targeted.
Technical SEO without the other two can leave a clean site with nothing convincing on it.
That is why the three types of SEO are best understood as one system.
On page SEO explains the page.
Off page SEO strengthens the site’s credibility.
Technical SEO makes the whole thing accessible and stable.
Miss one, and the others start carrying weight they were never meant to carry.
Conclusion
So, what are the 3 types of SEO?
They are On Page SEO, Off Page SEO, and Technical SEO.
That is the short answer.
The more useful answer is that these three SEO types work together to decide whether your website is clear enough, trusted enough, and accessible enough to compete in search.
If you want to know which one is currently letting your site down, Perth Digital Edge can review the setup, identify whether the real issue sits on the page, off the page, or in the technical foundation, and show you what deserves attention first.
