Useful SEO Terminology
301 A permanent server redirect – a change of address for a web page found in the hatches file on apache servers. Also useful for dealing with canonical issues.
Alt text A description of a graphic, which usually isn’t displayed to the end user, unless the graphic is undeliverable, or a browser is used that doesn’t display graphics. Alt text is important because search engines can’t tell one picture from another. Alt text is the one place where it is acceptable for the spider to get different content than the human user, but only because the alt text is accessible to the user, and when properly used is an accurate description of the associated picture. Special web browsers for visually challenged people rely on the alt text to make the content of graphics accessible to the users.
Analytics A program which assists in gathering and analyzing data about website usage. Google analytics is a feature rich, popular, free analytics program.
Anchor text the user visible text of a link. Search engines use anchor text to indicate the relevancy of the referring site and of the link to the content on the landing page. Ideally all three will share some keywords in common.
Authority (trust, link juice, Google juice) The amount of trust that a site is credited with for a particular search query. Authority/trust is derived from related incoming links from other trusted sites.
Authority site A website which has many incoming links from other related expert/hub sites. Because of this simultaneous citation from trusted hubs an authority site usually has high trust, pagerank, and search results placement. Wikipedia, is an example of an authority site.
Back link (inlink, incoming link) Any link into a page or site from any other page or site.
Black hat Search engine optimization tactics that are counter to best practices such as the Google Webmaster Guidelines.
Blog A website which presents content in a more or less chronological series. Content may or may not be time sensitive. Most blogs us a Content Management System such as WordPress rather than individually crafted WebPages. Because of this, the Blogger can chose to concentrate on content creation instead of arcane code.
Bot (robot, spider, crawler) A program which performs a task more or less autonomously. Search engines use bots to find and add web pages to their search indexes. Spammers often use bots to “scrape” content for the purpose of plagiarizing it for exploitation by the Spammer.
Bounce rate the percentage of users who enter a site and then leave it without viewing any other pages.