SEO Glossary of Terms
As a resource for your own SEO continuing education, below are some more terms and tactics to be familiar with.
Content that completely matches or is nearly identical to another block of content. In most instances duplicate content is unintentional (e.g. a standard Web page and print-friendly page) but there are times when sites recycle content in order to artificially generate more traffic. Search engines employ various tactics to limit duplicate content from appearing in search results including discarding duplicate pages.
Refers to the frequent, almost daily updating of search results at Google. Everflux occurs between major updates when individual pages are updated, added or removed from the index.
A dated practice of increasing relevancy in the search engines by adding to the frequency of keywords appearing on a page. Keyword density is presented as a percentage. For example, if a page contains 100 words and 10 of those are keywords, then the page is considered to have 10 percent keyword density.
Link Bursts and Link Churn
A rapid increase (burst) or decrease (churn) in the quantity of links pointing to a website. While unsubstantiated link bursts can raise a red flag at search engines, there are methods in place which qualify the value of new incoming links, such as the quantity of traffic passed from the link source.
NoFollow is a link attribute proposed by Google to instruct search engines not to follow a particular link. The result of which for some has resulted in a lower volume of link spam on blogs, but others argue that the practice diminishes the conversation taking place between websites.
A file located within a websites’ root directory providing instructions to search engines on which files to crawl or omit.
A secondary index for Google shown only in the absence of a matching page in the primary index. Documents within supplemental results are generally trusted less (due to low link authority, complex URLs, duplicate content or some variation) and will rank lower than documents in the primary search index. Supplemental documents are crawled less frequently and outbound links will carry far less value.
URL (Uniform Resource Locator)
The address system used by the Internet to locate resources such as websites. A URL includes the type of resource being accessed, the address of the server, and the location of the file.