Search engine basics
For those who perform their own web site ‘tweaks’ to improve their search engine rankings here are a few basic thoughts about how Search Engines work and guidelines to follow:
• Google and other search engines (SE) don’t index a web site – they index each of it’s pages individually. When you perform a web search it’s a specific page (OK, often the Home page) that appears in the results
• The SEs base their indexing on what they think the web page is about
• The SE’s get the likely main subject of a page from a combination of visible and invisible factors on a page and, for best results, they both need to be focussed on the same, single word or phrase (the ‘search term’)
• The search term should be aimed at a likely word or phrase that you expect (or know) your target audience to be typing in when they search. For example we target ‘Web Design Liskeard’ on one of our pages. Not many people type this into Google on a daily basis but when they do, we appear on the first page.
• The visible parts of the page that matter are the main page headings (H1, H2 and H3 tags etc in the page code) and the text. Including the search term within these headings and at least three times in the text (for 250 or more word pages). Putting the ‘search term’ in bold at least once within the page helps
• The invisible (to browsing visitors but not SE indexing ‘spiders’) parts of the page are the Title, the Description and the Keywords. Google and most other SEs place a lot of importance on the title but little nowadays on the description and keywords
• Adding visible and invisible descriptions to menu options and images on a web page containing the search term usually helps
• Google and others SE’s can’t read images. If a page is made up mainly of images then Google will fail to extract, and index, most of the content
• The site should contain a text-based menu or navigation system so that the SE indexing spiders can ‘crawl’ across the whole site by reading the links between the pages. If the menu and inter-page links are formed by an image-based or Flash menu this won’t be so easy.
• A Site map of the pages within the site will help the SEs index all of the site. A special format of site map (XML) can be submitted to Google and other SEs to make it easy for them
• SE’s now place a great store by the number and quality of links to a page from other web sites. The more relevant to your web site and the more highly regarded by that SE, the more weight it will put on a link. A link-building process is important to the long-term success of any SE-optimisation strategy