A web page is one document on the web, reachable at its own address (URL), that a browser downloads and displays. Your "About us" page is a web page; your whole site, with all its pages linked together, is a website. Think of a page as one chapter and the site as the book.
What a web page is made of
At its core, every page is an HTML file. The HTML has two parts. The head holds information about the page that is mostly invisible: the title tag shown in browser tabs and search results, the meta description, links to stylesheets and scripts. The body holds what people see: headings, paragraphs, images, buttons and forms. The browser then applies CSS for layout and colour, and runs JavaScript for anything interactive.
A page can be a fixed file the server sends as-is, or it can be assembled on the fly, for example a product page filled in from a database. To the visitor both look the same.
Why each page is its own unit for search
Google ranks pages, not whole sites. Each page has its own URL, title and content, and each can appear in results for different searches. That is why a dentist usually does better with a separate page for "teeth whitening" and another for "emergency dentist" than with one long page listing every service: each page can match one need precisely and answer it fully.
One page built for one search: wedding flowers
A florist's site has a page at /wedding-flowers. Its title tag reads "Wedding Flowers in Leeds | Petal and Stem", its main heading says the same in friendlier words, and the body shows past bouquets, a price guide, and an enquiry form. Someone searching for wedding flowers lands straight on this page rather than the homepage, and finds everything relevant in one place.
Single-page sites and app screens
Some sites put everything on one long page with sections. That works for a small portfolio or event, but limits how many different searches you can rank for. In a single-page application, the browser loads one HTML document and JavaScript swaps the views; good ones still give each view its own URL so it can be shared and indexed.
Page-level mistakes to watch for
- Two pages targeting the same thing, which split attention and confuse search engines about which one to show.
- Missing or duplicated title tags, so every tab and search result reads "Home".
- Pages with no links pointing to them, which visitors and crawlers struggle to find.
- Heavy images that make a single page slow even when the rest of the site is quick.
Related terms
- Website: the collection a page belongs to.
- URL: the unique address of each page.
- Landing page: a page built for one campaign or action.
- HTML: the language every page is written in.