Short answer: on-page SEO is the work you do on your own website: your content, titles, page structure and internal links. Off-page SEO is what happens outside your website that builds trust in it: links from other sites, reviews, mentions and your Google Business Profile.
You need both. On-page makes your pages worth finding, and off-page shows that other people agree.
What is on-page SEO?
Ahrefs describes on-page SEO (also called on-site SEO) as optimizing the pages of your website so they rank better in search engines. In plain words, it is everything you can change on your own site.
Typical on-page work includes:
- Writing pages that answer what your customers are actually searching for.
- Clear page titles and descriptions that tell people what to expect.
- Headings, readable page structure and a clean URL.
- Internal links, so visitors and search engines can move between your pages.
Google's own SEO Starter Guide covers many of these basics. It is aimed at helping search engines crawl, index and understand your content. Because all of this sits on your site, you control it fully. For a closer look, see our on-page SEO service.
What is off-page SEO?
Ahrefs defines off-page SEO as any effort made outside your own website to improve how it ranks. Its writers also point out that you do not have full control over it. If someone links to your site, that happens on their website, not yours.
Common off-page activities:
- Backlinks: links to your site from other websites. Ahrefs calls these arguably the most important part of off-page SEO.
- Reviews and reputation: BrightLocal's 2026 Local Consumer Review Survey found that 97% of consumers read reviews for local businesses, and that the average consumer uses six different review sites when choosing one.
- Google Business Profile: Ahrefs notes that a few off-page factors, such as your Google Business Profile, are things you can fully control.
- Brand mentions: other sites and people talking about your business.
One warning. Google's spam policies describe link spam as creating links to or from a site mainly to manipulate rankings, and list examples such as excessive "link to me and I'll link to you" exchanges. Sites that break the policies can rank lower or be left out of results. So the safe goal is links and mentions you earn, not ones you force. Our off-page SEO service page explains how we approach it.
Technical SEO vs on-page SEO vs off-page SEO
You will often see a third term: technical SEO. It is about whether search engines can reach and understand your site at all. Google explains that Search works in stages: crawling, indexing and then serving results, and that not every page makes it through each stage. It also says indexing is not guaranteed.
Technical SEO covers things like robots.txt rules, site speed, mobile-friendliness and fixing pages that Google cannot index. Many SEOs keep it separate from on-page SEO, and we do the same here. Think of it this way:
- Technical SEO: can Google get to your pages?
- On-page SEO: are the pages clear and useful?
- Off-page SEO: does anyone else vouch for you?
See our technical SEO service for more.
On-page vs off-page SEO: side-by-side table
| On-page SEO | Off-page SEO | |
|---|---|---|
| Where it happens | On your own website | Outside your website |
| How much you control | Fully yours to change | Partly in your hands; other people decide on links and reviews |
| Main question it answers | Is this page clear and useful for the search? | Do other sites and people trust this business? |
| Examples | Content, titles, headings, internal links, URLs | Backlinks, reviews, brand mentions, Google Business Profile |
| Main risk | Thin or unclear pages that do not match what people search for | Low-quality or paid links that break Google's spam policies |
The on-page and off-page definitions follow Ahrefs. The risk row is based on Google's spam policies.
Onpage SEO and off page SEO: which should you do first?
Ahrefs calls on-page and off-page SEO two sides of the same coin, so the real question is the order. This is our practical view, not a rule from any study:
- Technical basics first. If Google cannot crawl or index your pages, nothing else matters.
- Then on-page. Make sure each main service has a clear page that answers real customer questions.
- Then off-page. Once the pages are worth visiting, build trust through reviews, a complete Google Business Profile and earned links.
Why this order? Links and reviews help most when there is a good page to send people to.
On-page and off-page SEO for a small business
For a local or small business, this usually means a few simple things:
- Give each main service its own page, and say clearly where you work.
- Keep your business details the same everywhere they appear.
- Ask happy customers for reviews. Recent, genuine reviews matter, since people read them before they call.
- Do not buy links or join link swaps. Google's policies are clear that this can hurt you.
Also be careful with promises. Google says it does not accept payment to crawl a site more often or rank it higher, and it cannot guarantee that any page will be crawled, indexed or served. Nobody can promise you a ranking. Good SEO improves your chances over time. Curious about cost? Read How much does SEO cost for a small business?
Reviews and your Google Business Profile are a big part of showing up for local searches, which is covered by our local SEO service. If you want help with all of these areas, our Website SEO service is built for small businesses.
FAQ: on-page SEO and off-page SEO
What is the difference between on-page SEO and off-page SEO?
On-page SEO is the work you do on your own website, such as page content, titles and internal links. Off-page SEO is everything outside your website that helps people and search engines trust it, such as links from other sites, reviews and your Google Business Profile.
Which is more important, on-page or off-page SEO?
Neither works well alone. Ahrefs describes them as two sides of the same coin. A page that is not useful gives other sites little reason to link to it, and a useful page that nobody knows about can be slow to get noticed.
Is technical SEO part of on-page SEO?
Many SEOs treat technical SEO as its own area. It covers whether search engines can crawl and index your site, for example robots.txt rules, site speed and mobile-friendliness. In this post it is kept separate from on-page SEO. See our technical SEO service.
Is off-page SEO just link building?
No. Backlinks are a big part of it, but off-page SEO also includes reviews, brand mentions and your Google Business Profile. Google warns against links created mainly to manipulate rankings, so the aim is links and mentions that are earned.
Should a small business do on-page or off-page SEO first?
In practice, make sure search engines can reach your site first, then fix the pages themselves, then build trust outside the site. It is a sensible order rather than a strict rule.
Can SEO guarantee a first-page ranking?
No. Google says it does not guarantee that any page will be crawled, indexed or shown, and it does not accept payment to rank pages higher. Be careful with any company that promises a ranking.
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