what is On page SEO and Off page SEO?

• On Page SEO refers to settings you can apply on the website so that it is optimized for search engines. it includes the optimization of texts,tags,images,URL structure,internal links,headers etc.
• Off page SEO refers to techniques that can be used to improve the position of a web site in the search engine results page . Many people associate off-page SEO with link building but it is not only that. In general, off Page SEO has to do with promotion methods – beyond website design –for the purpose of ranking a website higher in the search results.

What is PPC ?

• Pay per click (PPC), also called cost per click, is an internet advertising model used to direct traffic to websites, in which advertisers pay the website owner when the ad is clicked. It is defined simply as “the amount spent to get an advertisement clicked.
•  You know those sponsored ads you often see at the top of Google’s search results page, marked with a yellow label ? That’s   pay-per-click advertising
• Here’s how it works:  Every time your ad is clicked, sending a visitor to your website, you pay the search engine a small fee. (That’s why it’s called “pay per click.”)
  

Search engine optimization (SEO)

• Search engine optimization (SEO)  is the process of affecting the visibility of a website or a web page in a search engine's unpaid results - often referred to as "natural," "organic," or "earned" results. In other words SEO is a process of getting traffic from "free","organic",'editorial" or "natural" search results on search engines. 
•  SEO techniques to improve the visibility of your web pages for different search engines, especially for Google, Yahoo, and Bing. 
•  SEO is a technique for:

• designing and developing a website to rank well in search engine results.
• improving the volume and quality of traffic to a website from search engines.
• marketing by understanding how search algorithms work, and what human visitors might search