The content of the Meta tags is not considered by most search engines in the search, however, it displayed (sometimes only in certain circumstances) a description of the search result. Google shows the description usually only when a page in the domain is listed and this entry has been accepted into the Google directory. The previous manual testing obviously creates the necessary trust for this purpose.
Not only for the listed side, but also for all pages of the domain, because it will be displayed from now on also in other pages divergent descriptions! Google shows the description, however, only, if it contains all terms, otherwise a passage from the content is used. When searching the description of Google is not taken into account, i.e. when a search exclusively inoccurs, the page is not found! However, Google may find search results with the Description in other pages.
Accessibility
You will have probably already noticed that SEO makes the websites.
Remember that search engines still evaluate and use for any graphic information containing images. This is particularly important in header graphics that not only have a decorative function, but also and graphical menus. Rarely used, but taken into account by search engines is the ‘ title ‘attribute that can be specified with almost every xHTML element. In contrast to the ‘ old ‘attribute for images whose content is always displayed when hovering the mouse as a tooltip. Therefore, it can be used as additional information for certain items, headings and for images.
If you include important content on JavaScript or plugins like Java or Flash, you also ensure alternative access. In JavaScript, you can e.g. the use area, evaluating the content and search engines. Contents of other plugins you can also be accessed through a link on a common xHTML page or equal to forego their use.Particularly unfortunate is the use of plugins for navigation.
While in a good JavaScript menu alternatively normal xHTML links may be used, the use of plugins no viable alternative. An alternativeXHTML navigation is only used in frameset.