GlossarySEO
What is on-page SEO? Definition and key elements
Also called: on-site SEO, on-page optimization
Definition
On-page SEO is optimizing what's on each page so searchers and search engines understand it: the content itself, title tag, meta description, headings, internal links, images and structured data.
On-page SEO, explained
On-page SEO is one of three parts of SEO. Technical SEO makes a page reachable: crawling, indexing, speed, canonical URLs. Off-page SEO is what happens elsewhere, mainly links and mentions from other sites. On-page SEO is everything you control on the page itself, and it makes the page the right answer. It starts with intent: what does someone searching this query actually want, and does the page give it to them quickly? Everything else supports that.
The elements, in rough order of impact. The content: does it answer the query more directly and completely than the pages already ranking? The title tag: a clear, specific name for the page that Google can use as the title link. The main heading, which should agree with the title. The opening paragraph, which should get to the point. Subheadings that match the questions people ask. Internal links in and out with descriptive anchor text. Images with useful alt text. A meta description written as a pitch for the click. And structured data where it applies.
Google's SEO Starter Guide debunks a few old habits. It says Google doesn't use the meta keywords tag, that there's no magic word count, and that the order of headings doesn't affect ranking in itself. It also warns against keyword stuffing. On-page SEO today is mostly editing: making each page clearer and more useful, not sprinkling a keyword more often.
Search Console tells you where to start. Pages with many impressions but a low click-through rate usually need a better title and description. Pages ranking on page two often need a fuller answer or better internal links. Our on-page SEO checklist walks through each element in order, and title tags that get clicked covers the title and snippet.
Why it matters for founders
On-page work is the part of SEO you fully control, and it pays off fastest on pages Google already shows. As a rule of thumb, a page on page two for a query it only half answers has the most to gain from an edit; a page Google hasn't shown yet needs links and time first.
Example
A post ranks at position 9 for "launch checklist" with a 0.4% CTR. You change the title from "Our Thoughts on Launching" to "Product launch checklist: 23 steps", add the checklist near the top, and clicks rise.
Common mistakes
- Repeating the keyword instead of answering the question.
- Titles that don't match the page's main heading or content.
- Ignoring pages that already get impressions.
- Writing for a word count instead of for the query.
Go further with On-page SEO
Free tools, templates and guides on the same subject.
Sources
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Related terms
- Technical SEOTechnical SEO is the work that lets search engines crawl, render, index and understand your pages: status codes, redirects, canonicals, sitemaps, robots rules, rendering, structured data, speed and mobile support.
- Title tagA title tag is the
<title>element in a page's HTML. Google usually uses it for the clickable headline of a search result, and it's one of the clearest signals of what the page is about. - Search intentSearch intent is the goal behind a search: what the person actually wants when they type a query. Pages rank best when their format and content match that goal, not just the words.
- Heading tags (H1–H6)Heading tags,
<h1>through<h6>, mark the titles and section headings of a page. They give readers and search engines an outline of what the page covers and how it's organized.