SEO Terminology

Term Definition
Alt text Alt text provides users and search engines with information about your images. Search engine robots are unable to "read" images - only text. Alt text provides information about your images to search engines. For more information click here.
Anchor text Anchor text is the clickable text which links to a different page on your website, or to an external URL on the web. For more information click here.
Backlink Backlinks (also known as incoming links, inbound links and inward links) are links that point towards your website, from other relevant websites. Backlinks are like votes of confidence for your website; the more votes you have - from quality websites - the better your site appears to search engine crawlers. For more information click here.
Black hat technique Illegal SEO techniques that are used to achieve a higher page rank. For more information click here.
Bot (Robot, Spider, Crawler, WebCrawler) "Web searching bots (also known as spiders and crawlers), search the web and retrieve millions of HTML documents and record the information and links found on the pages. From there, they generate electronic catalogs of the sites that have been "spidered." These catalogs make up the index of sites that are used for search engine results."
Source: http://www.techterms.com/definition/bot
Bounce rate The bounce rate represents the percentage of people that enter your site and leave after viewing only one page. For more information click here.
Duplicate content "Identical content that appears in more than one place, which causes search engines to show only one of the links with this content. Search engines can penalize your website for duplicate content, so it is extremely important that all content is original, relevant and of quality."
Source: http://moz.com/learn/seo/duplicate-content
H1 H1 or Heading tag is quite literally the heading of your webpage, much like the heading of a newspaper article. For information about how to add one to your site, click here.
Index "A search engine database which include all URLs and the files within them. A search engine will first crawl your site, and then choose whether or not it will index your site."
Source: http://www.htmlbasictutor.ca/search-engine-indexing.htm
Internal linking The links that are located within the same site or domain. They are hyperlinks that can be used to improve a site's usability and improve navigation between pages and sections.
Keyword density The percentage of times a keyword or phrase appears on a web page compared to the total number of words on the page. For more information click here.
Keywords Words or groups of words entered into search engines in order to get matching and relevant results. For more information click here.
Keyword stuffing "This refers to the practice of loading a webpage with keywords or numbers in an attempt to manipulate a site's ranking in Google search results. Often these keywords appear in a list or group, or out of context (not as natural prose). Filling pages with keywords or numbers results in a negative user experience, and can harm your site's ranking."
Source: http://support.google.com/webmasters/bin/answer.py?hl=en&answer=66358
Link popularity A measure of the quantity and quality of backlinks to a site, which is used by many search engines. For more information about backlinks, click here.
Source: http://http://seotermglossary.com/link-popularity-link-cardinality/
Local listings
Adding a site or a business' location to appear in a special section on search engine result pages reserved for local businesses. Local listings often show a map of the location and photos. All major search engines offer local listings (e.g. Google Places, Yahoo! Local etc).To instructions on how to add a Google listing, please click here.
Source: http://www.seomoz.org/blog/the-beginners-checklist-for-small-business-seo
Meta tags Text elements that are not visible to your website's visitors that provide important information to search engines. This includes your site or page title, and site or page description, which is shown on search engine result pages. For more information, including how to add meta tags to your site, please click here.
Noindex tag A noindex meta tag prevents a page's contents from being listed in the Google web index even if other sites link to it.
Source: http://support.google.com/webmasters/bin/answer.py?hl=en&answer=93710
Off page optimization The process of optimizing your site's ratings by including such techniques as creating comminities on social networks, blogging, directory submissions, search engine submissions, cross linking, video blogging etc.
Source: http://www.seomoz.org/ugc/21offpage-seo-strategies-to-build-your-online-reputation
On page optimization The process of optimizing your site's ratings within your site (in this case, within the Wix editor). This includes filling in meta tags, inserting keywords, h1 tags, adding relevant links, etc.
Source: http://www.directtrafficmedia.co.uk/blog/on-page-seo-vs.-off-page-optimisation
Page rank This indicates the relevant importance of a web page, compared to all other pages on the internet. For more information click here.
Robots.txt *** This is a file that restricts access to your site by search engine robots that crawl the web. Wix has added a robots.txt to these files contained in all Wix sites, to prevent Google from crawling the noflashhtml and backhtml links inside Wix sites. The links are important to the structure of your Wix site, but do not need to be crawled by search engines. Preventing these files from being crawled has no negative impact on your SEO. For more information click here.
Sitemap Sitemaps tell Google about pages on your site that may otherwise not be discovered. It appears as a list of all your site's links, and can be accessed by adding sitemap.xml to the end of your site's URL. For more information click here.
Source: http://support.google.com/webmasters/bin/answer.py?hl=en&answer=156184
Site title The title of your site that shows up in search engine results. For more information about where to add your site title and how it is displayed in search engines, please click here.
URL This stands for "Uniform Resource Locator." A URL is the address of a specific web site or file on the Internet.
Source: http://www.techterms.com/definition/url
White hat technique White Hat SEO refers to the usage of SEO strategies, techniques and tactics that focus on a human audience opposed to search engines and completely follows search engine rules and policies.
Source: http://www.webopedia.com/TERM/W/White_Hat_SEO.html