Optimize My Web Site Dictionary

Unethical SEO - Some search engine marketers lacking in creativity try to market their services as being ethical, whereas services rendered by other providers are somehow unethical. SEO services are generally neither ethical or unethical. They are either effective or ineffective.

SEO is an inherently risky business, but any quality SEO service provider should make clients aware of potential risks and rewards of different recommended techniques.

Unique Visitors - The number of visitors who access a website within a given time period (usually 24 hours) from a single IP address. If you visit the same website three times within a 24 hour period, your visits only count as one unique visit for that day.

Update - Search engines frequently update their algorithms and data sets to help keep their search results fresh and make their relevancy algorithms hard to update. Most major search engines are continuously updating both their relevancy algorithms and search index.

See: Google Terminology - Video where Google's Matt Cutts discusses various commonly used terms inside Google.

URL (Uniform Resource Locator) - Each web page has it's own specific human-friendly URL, or web address. URLs are mapped to computer-friendly IP addresses by special computers called Domain Name Servers, or DNSs.

URL (Useful) - The result is very good and deserves a high position. Useful results should be highly satisfying for the user: if the query is informational, they should be very informative; if the query is transactional, they should allow the user to complete the transaction.

URL (Vital) - The result (web page) uniquely matches the query. For example, if the user typed the query “Office Max”, then a vital result that should show up at the top of the SERPs would be www.officemax.com

Example:

http://www.roadsidemultimedia.com

URL Rewrite - A technique used to help make URLs more unique and descriptive to help facilitate better sitewide indexing by major search engines.

See:

Usability - How easy it is for customers to perform the desired actions.

The structure and formatting of text and hyperlink based calls to action can drastically increase your website usability, and thus conversion rates.

See:

Usage Data - Things like a large stream of traffic, repeat visitors, multiple page views per visitor, a high clickthrough rate, or a high level of brand related search queries may be seen by some search engines as a sign of quality.

Usenet - A search service which is focused on a particular field, a particular type of information, or a particular information format.

User - See Visitor.