I
IDF Inverse Document Frequency is a term used to help determine the position of a term in a vector space model.
IFRAME – “IFrame (from inline frame) is an HTML element which makes it possible to embed another HTML document inside the main document. The size of the IFrame is specified in the surrounding HTML page, so that the surrounding page can already be presented in the browser while the IFrame is still being loaded. The IFrame behaves much like an inline image, and the user can scroll it out of view. On the other hand, the IFrame can contain its own scroll bar, independent of the surrounding page's scroll bar.
impression - (page view) The event where a user views a webpage one time.
Inbound Link - Link pointing to one website from another website. Most search engines allow you to see a sample of links pointing to a document by searching using the link: function. For example, using link:www.marketgoo.com would show pages linking to the homepage of this site (both internal links and inbound links). Due to canonical URL issues www.site.com and site.com may show different linkage data. Google typically shows a much smaller sample of linkage data than competing engines do, but Google still knows of and counts many of the links that do not show up when you use their link: function.
Index
Collection of data used as bank to search through to find a match to a user fed query. The larger search engines have billions of documents in their catalogs. When search engines search they search via reverse indexes by words and return results based on matching relevancy vectors. Stemming and semantic analysis allow search engines to return near matches. Index may also refer to the root of a folder on a web server.
index Noun - a database of WebPages and their content used by the search engines.
index Verb - to add a web page to a search engine index.
Indexability - Also known as crawlability and spiderability. Indexability refers to the potential of a web site or its contents to be crawled or “indexed” by a search engine. If a site is not “indexable,” or if a site has reduced indexability, it has difficulties getting its URLs included. indexed Pages The pages on a site which have been indexed.
Internal Link - Link from one page on a site to another page on the same site. It is preferential to use descriptive internal linking to make it easy for search engines to understand what your website is about. Use consistent navigational anchor text for each section of your site, emphasizing other pages within that section. Place links to relevant related pages within the content area of your site to help further show the relationship between pages and improve the usability of your website.
Image sitemap
An image sitemap is an XML sitemap file that is designed to show to a search engine the images used on a website.
Indexed Page
A webpage that has been discovered by a crawler, has been added to a search engine
Inbound Link
A link to a webpage that originates from an external website. For example, if Search Engine Journal were to link to Google, that would count as an inbound link on Google’s side; if Google were to link to Search Engine Journal, that would be an inbound link on SEJ’s side.
Index
The database search engines use to store and retrieve information gathered during the crawling process.
Information Architecture
How a website is organized and where various content and navigational elements are located on webpages.
Information Retrieval
The process of searching for information (e.g., text, images, video) from a large database and then presenting the most relevant information to an end user.
Internal Link
are links that go from one page on a domain to a different page on the same domain. They are commonly used in main navigation. These type oflinks are useful for three reasons: They allow users to navigate a website. They help establish information hierarchy for the given website.
IP Address
An Internet Protocol Address. IP addresses can be:
- Shared: Numerous websites share an address within one server or a group of servers (a.k.a., virtual hosting).
- Dedicated: A website has its own address.
Neither will help you rank better; however, a dedicated IP address can increase site speed.