The 301 HTTP response code is used for a permanent redirection of a URL.

ALT tag

The ALT tag is the attribute used in HTML and XHTML documents to specify alternative text (usually for images) that is displayed when the element to which it is applied cannot be rendered. Filling in the ALT tag also helps users with screen readers to understand what image is shown on the web page.

Anchor text

The visible, clickable text in a hyperlink.


A backlink is a link pointing from one website to another.

Canonical tag

A canonical tag or rel-canonical is a method used to inform search engines that a specific URL represents the master copy of a web page. Using the canonical tag prevents problems caused by identical or duplicate content appearing on multiple URLs.

Deep Linking

The use of a hyperlink that links to a specific, generally searchable or indexed piece of content on a website, rather than a homepage.

Dofollow Link

Dofollow links allow search engines like Google to follow and reach a web page. In most cases, the more dofollow links you have, the better your search rankings.

Domain Name

A domain name is a web address where users can access a website and can have any combination of letters and numbers.

Duplicate Content

Duplicate content is a term used in the field of search engine optimization to describe content that appears on more than one web page. The duplicate content can be substantial parts of the content within or across domains and can be either exactly duplicate or closely similar.


A web hosting service is a type of Internet hosting service that allows individuals and organizations to make their website accessible via the World Wide Web.

Keyword Density

Keyword density is the percentage of times a keyword or phrase appears on a web page compared to the total number of words on the page. In the context of search engine optimization, keyword density can be used to determine whether a web page is relevant to a specified keyword or keyword phrase.

Keyword Stuffing (KS)

Keyword stuffing is a search engine optimization technique, considered webspam or spamdexing, in which keywords are loaded into a web page’s meta tags, visible content, or backlink anchor text in an attempt to gain an unfair rank advantage in search engines.


Keywords are ideas and topics that define what your content is about. In terms of SEO, they’re the words and phrases that searchers enter into search engines, also called “search queries.”

Latent Semantic Indexing (LSI)

Latent semantic indexing (LSI) is an indexing and retrieval method that uses a mathematical technique called singular value decomposition (SVD) to identify patterns in the relationships between the terms and concepts contained in an unstructured collection of text.

Link Building

In the field of search engine optimization, link building describes actions aimed at increasing the number and quality of inbound links to a webpage with the goal of increasing the search engine rankings of that page or website.

Link Farm

On the World Wide Web, a link farm is any group of web sites that all hyperlink to every other site in the group. In graph theoretic terms, a link farm is a clique. Although some link farms can be created by hand, most are created through automated programs and services.

Link Sculpting

Link Sculpting is the process of manipulating your websites PageRank by controlling the flow of link juice. … Using “nofollow” attribute tags to flow PageRank from your highest, most popular pages (e.g., your home page) through other internally linked pages is a common link sculpting tactic.


Link Bait is providing valuable content on your website so that other websites will naturally reference/link to it without you ever having to ask.

Meta tags

Meta tags are snippets of text that describe a page’s content; the meta tags don’t appear on the page itself, but only in the page’s code. We all know tags from blog culture, and meta tags are more or less the same thing, little content descriptors that help tell search engines what a web page is about.

Natural Links

In simple words, natural links happen when other webmasters, bloggers or website owners link to your content (blogs, images, products, videos etc) because they think is useful for their readers and adds value to their websites or pages.


Nofollow links are links with a rel=”nofollow” HTML tag applied to them. The nofollow tag tells search engines to ignore that link. Because nofollow links do not pass PageRank they likely don’t impact search engine rankings.

OffPage SEO

Off page SEO refers to techniques your can use to improve the position of a web site in the search engine results page (SERPs). Many people associate off-page SEO with link building but it is not only that.

OnPage SEO

Onpage Optimization. Onpage optimization (AKA on-page SEO) refers to all measures that can be taken directly within the website in order to improve its position in the search rankings. Examples of this include measures to optimize the content or improve the meta description and title tags.

Organic Search

Organic search is a method for entering one or several search terms as a single string of text into a search engine. Organic search results, appear as paginated lists, are based on relevance to the search terms; and exclude advertisements.

Page Cloaking

Page cloaking is a technique used in which content presented to the search engine spider is different from that presented to the user’s web browser. This can be done by delivering content based on IP addresses or the User-Agent HTTP header of the user requesting the web page.


PageRank is an algorithm used by Google Search to rank web pages in their search engine results. PageRank was named after Larry Page, one of the founders of Google. PageRank is a way of measuring the importance of website pages.


The robots exclusion standard, also known as the robots exclusion protocol or simply robots.txt, is a standard used by websites to communicate with web crawlers and other web robots. The standard specifies how to inform the web robot about which areas of the website should not be processed or scanned.


A sandbox is a testing environment that isolates untested code changes and outright experimentation from the production environment or repository, in the context of software development including Web development and revision control.

Search Engine

A web search engine or Internet search engine is a software system that is designed to carry out web search, which means to search the World Wide Web in a systematic way for particular information specified in a textual web search query.


Search Engine Marketing is a form of digital marketing involving the promotion of a website by increasing its visibility in search engine results pages, primarily through paid advertising.


Search Engine Optimization is the process of increasing the quality and quantity of a website’s organic traffic by increasing its visibility to users of a search engine.


Search Engine Results Pages are the pages displayed by search engines in response to a query by a user.


A spider is a program that visits Web sites and reads their pages and other information in order to create entries for a search engine index. The major search engines on the Web all have such a program, which is also known as a “crawler” or a “bot.”

Supplemental Index

One is the main index, and the other is the supplemental index. Only the main index is used when choosing the results to serve per search query. The supplemental index stores all of those other pages, that seem to have duplicated content or irrelevant content for searches.

Supplemental Result

Supplemental results usually only show up in the search index after the normal results. They are a way for Google to extend their search database while also preventing questionable pages from getting massive exposure. … For example, if Google indexes the www. version of your site and the non www.

Title tag

A title tag is an HTML element that specifies the title of a web page. Title tags are displayed on search engine results pages (SERPs) as the clickable headline for a given result, and are important for usability, SEO, and social sharing.


A Uniform Resource Identifier is a string of characters that unambiguously identifies a particular resource. To guarantee uniformity, all URIs follow a predefined set of syntax rules, but also maintain extensibility through a separately defined hierarchical naming scheme.


A Uniform Resource Locator, colloquially termed a web address, is a reference to a web resource that specifies its location on a computer network and a mechanism for retrieving it. A URL is a specific type of Uniform Resource Identifier, although many people use the two terms interchangeably.

White Hat SEO

In search engine optimization (SEO) terminology, white hat SEO refers to the usage of optimization strategies, techniques and tactics that focus on a human audience opposed to search engines and completely follows search engine rules and policies. … Also called Ethical SEO.

XML Sitemap

The Sitemaps protocol allows a webmaster to inform search engines about URLs on a website that are available for crawling. A Sitemap is an XML file that lists the URLs for a site.