Position
Position is also known as rank, and it is the place where a url occupies related to the first listing on search engine results page according to particular keyword query. Every business tries to get its website into a top ten position. And one main thing is every internet user clicks only on sites which come in the top ten positions.

Position Reporting
Position reporting is observing of daily changes in search engine postion for indexed urls that are optimized for specific keywords. Position reporting is mainly used to generate a Search Engine Ranking Report.

Query
A query generally means a question or an instance of questioning. In seo terms a query can be defined as a user's search for information, i.e websites in the index of a search engine based on a keyword or a set of phrases. Sometimes a query can mean the exact keywords a net user gives in the search box.


Rank
Rank is the place where a website occupies relative to the first listing on search engine results page in response to a particular keyword. It is also known as Position. Every business tries to get its website into a top ten position. And one main thing is every internet user clicks only on sites which come in the top ten positions.

Hidden Text
Hidden text is a generally absolute form of Black Hat SEO in which pages are filled with a large amount of text that is the same color as the background, rendering keywords invisible to the human eye but detectable to a search engine Crawler. Multiple Title Tags or HTML comments are alternative hidden text techniques. Hidden text is easily detectable by search engines and will result in Blacklisting or reduced Rank.

Hit
Hit is a somewhat misleading measure of traffic to a web site. One hit is recorded for each file request in a web server’s access log. If a user visits a page with four images, one hit will be recorded for each graphic image file plus another for the page’s HTML file. A better measure of traffic volume is the number of pages/HTML files accessed.

Gateway Page
Also known as a doorway page or jump page, a gateway page is a URL with minimal content designed to rank highly for a specific keyword and redirect visitors to a homepage or designated Landing Page. Some search engines frown on gateway pages as a softer form of Cloaking or Spam. However, gateway pages may be legitimate landing pages designed to measure the success of a promotional campaign, and they are commonly allowed in Paid Listings.

Inbound Links
Also known as back link, backward link, or backlinks, inbound links are all of the links on other websites that direct the users who click on them to your site. Inbound links can significantly improve your site’s search rankings, particularly if they contain Anchor Text keywords relevant to your site and are located on sites with high Page Rank.

Actually there are three types of SEO Hats:

White Hat SEO
White Hat SEO is also known as organic search engine optimization or natural search engine optimization. White hat SEO is the legitimate use of keyword-focused copy and tags, Search Engine Submissions and a quality Backlinks network to improve sites position, Page Rank, CTR(Click through rate). If site is having a good reputation in search engine postions then it is better to use white Hat SEO techniques instead of black hat techniques. White hat SEO does not include Cloaking, Spam or any other Black Hat SEO techniques. The results which come from white hat techniques are long term.

* No Risk

* User Friendly

* Follow Guidelines

* Long Term Results(It takes Long time to get approved)

Black Hat SEO
In Black hat SEO optimization is mainly done in an unethical manner. This incudes cloaking, spam, violating search engine rules. If a search engine finds a site with black hat SEO techniques then it will remove that site from search engine index. Black Hat SEO techniques can give immediate results but it is very risky. The results will not stay longer and also it effects the site position in SERPs.

* High Risk

* Not User Friendly

* voilating search engine guidelines

* All Scraped Content


Gray Hat SEO
Actually Gray Hat SEO falls in between Black Hat SEO and White Hat SEO. In some cases Gray hat SEO techniques can be legitimate or illegitimate. Such techniques include Gateway Pages, Cloaking ,Doorway Pages, and duplicate content.

* Some what Risk Reward

* Some What User Friendly

* Keeps in Mind (SEO Guidelines)

* Semi Unique

* Less Effort Than WHITE HAT.