Glossary - L

latent semantic indexing
LSI is the Acronym of Latent Semantic Indexing, also known as Latent Semantic Analysis. It is a kind of Information Retrieval (IR) which switches the current lexical functioning of every search engine to a semantic one. In this kind of indexing, it is possible that a query returns results which do not contain the keyword or the keywords serched; without any doubt this is the future of searche engines ; rumors say Google is hard at work at LSI and a 'proof' is that searching on Google with Latent Semantic Indexing u van view an adword about Google hiring...

legacy data
Referring to information contained in old file types. Usually legacy data can only be viewed with special reader programs.

lead
A typical MWR , mostly referring to a potential customer's contact details. Many companies don't sell online but rather use their sites to generate leads that are then followed up. Many affiliate programs also reward affiliates on a per-lead basis rather than a per-sale basis.

linkable content
Site content that is so high quality and/or unique that other sites *can't resist* linking to it. Examples include articles, news, forums, newsletters, etc.

link checker / link validatorA program that scans web sites for dead links . Most link checkers generate reports that list all dead links on a site.

link farm
Similar to FFA pages, it refers to a page where anyone can list a web site to be linked to. Link farms are used to artificially boost link popularity . Most search engines penalize sites associated with link farms.

link hoarding
The practice of getting as many inbound links as possible while giving as few outbound links as possible. This is done in attempt to increase link popularity . Regarded as spam .

link popularity / linkage
A measure of the quantity and quality of inbound links . Link popularity is an important factor in SEO .

linkrot
Similar to dead links , but more specifically referring to the general problem of dead links on the web. Linkrot is a major headache for the search engines who has to return relevant and up-to-date results.

link swap / link swop
Similar to reciprocal links , referring to the practice of two or more sites exchanging links in an effort to boost link popularity .

link tracking
A type of indexing designed to track inbound links to a document. Many search engines offer ways to easily track inbound links. At Google , for example, simply type "link:www.your-domain-here.com" (without the quotation marks) for a list of sites linking to www.your-domain-here.com.

log file
Each web site has a log file (stored on the server), which records details every time a visitor to the site requests a file. Log files store data such as the IP address of the visitor, the visitor's nationality, operating system, browser etc. The log file can be analyzed to obtain statistics on unique visitors , page views , hits etc., which are often used as measurements in SEO .

logspam / logspamming
A type of spamdexing where one website gives another website enough fake hits so as to get into their top referrer logs and obtain backlinks . Most often done to high PageRank sites with publicly available site useage logs that are spidered by Google .