A qualified lead is a lead that works out for you. For example, if you get a list of websites that sign up for your website’s newsletter they are all potential leads. But the leads that become customers are considered qualified leads.
Quality content consists of copyright material that entices the website visitor to take action. Whether it is to sign up for a newsletter, make a purchase, or produce a lead. This also refers to quality content in the search engine’s eyes so that they will rank your website higher.
This is a set of guidelines that search engines suggest you use so that you do not spam the internet or manipulate the search results.
The search phrase or word used in the search engine when querying (asking) the search engine to look up something.
Query Deserves Freshness (QDF)
When the search engines decide it is in the best interest to show newer pages instead of older ones because it is more relevant like the latest news stories for example.