On-page SEO

Definition
On-page SEO is optimising everything inside a single page, its title, headings, content, URL and internal links, so search engines understand it and rank it for the right query.

Why it matters

Paid advertising stops when spending stops. A well-optimised page can keep bringing in visitors for years, so on-page work builds value over time. Visitors from search have also chosen to look for the subject, so they are more likely to be interested. Search engines and readers want the same thing in the end: the clearest answer to a specific question.

How to apply it

  • Start with the question the page answers, using search intent and keyword research.
  • Put the main phrase near the front of the title tag, written to earn a click and not just to match a keyword. About 60 characters usually fit before it is cut off in results.
  • Use one main heading and a clear structure of subheadings.
  • Answer the question fully, with original examples or data.
  • Link to the page from related pages with descriptive anchor text, never "click here".
  • Check impressions and clicks separately. A page with many impressions but few clicks needs a better title, not more text.

What it is

On-page SEO covers everything on the page that a search engine reads and a visitor sees. The main elements are the title tag, the meta description, the main heading and subheadings, the web address, the body text, internal links, image descriptions (alt text) and structured data. Page speed and mobile display matter too. Work done on other websites, such as earning backlinks, is off-page SEO.

A bookkeeping firm with a page for freelancers might use the title "Bookkeeping for freelancers in Leeds, fixed monthly fee", one main heading with the same idea, and subheadings answering real questions: what it costs, what is included and how to switch.

Common mistakes

  • Repeating the keyword unnaturally, which makes the text worse to read.
  • Having several pages that compete for the same search.
  • Giving different pages the same title tag.
  • Changing titles every few days. Results take weeks to settle.
Worked example

Suppose a bookkeeping firm in Leeds has a page for freelancers that sits on page three of search results. The title is a vague heading about accounting services, and the page has one heading and no structure. The team rewrites the title as Bookkeeping for freelancers in Leeds, fixed monthly fee, which fits the length search results show, and splits the body under subheadings that answer what it costs, what is included and how to switch.

To check the draft against what already ranks, the writer runs it through SurferSEO, which compares the page with the top-ranking pages for the same query and gives recommendations. Say the page reaches the first page within three months and enquiries from it double. The page did not get longer for its own sake. It answered the question more clearly than the pages above it.

Tools in the example

Some links are affiliate links: we may earn a commission at no cost to you. It never decides a ranking. How we work with partners

  1. Article

    Technical SEO

    The site-wide foundation that lets pages be found and read.

  2. Article

    Internal linking

    How pages pass relevance to each other.

  3. Article

    Structured Data

    Code that tells search engines what the page contains.

  4. Article

    Featured snippet

    A result often won by clear, well-structured pages.

Where it shows up

  • Search engine optimisation (SEO) is getting found in search results without paying for ads. It is free in clicks but takes time and consistency to build.
    25 chapters