Web-based vs. desktop-based rank tracking tools

Anyone who has tried to manually find their website’s position in a search engine knows it takes way too long, and that they should spend that time in a much more productive way. When you get to a certain point in your business you can’t afford not to use a rank tracker. There are two types of rank trackers: web-based and desktop-based.

Web-based rank tracker like SerpYou

Your rankings are checked daily and automatically.
You can track as many keywords as you need.
No proxies. No hassle.
View you rankings or edit your keywords anywhere with an internet connection.

Desktop-based rank tracker

Your rankings are only updated when you are running program.
If you track more than a handful of keywords you’ll likely be temporary blocked by search engines like Google.
You may need to buy proxies in order to avoid being blocked by search engines.
You can only view your rankings on your own computer.

What is SERP ?

A search engine results page (SERP) is the listing of results returned by a search engine in response to a keyword query. The results normally include a list of items with titles, a reference to the full version, and a short description showing where the keywords have matched content within the page. A SERP may refer to a single page of links returned, or to the set of all links returned for a search query.

Each page of search engine results usually contains 10 organic listings. The listings, which are on the first page are the most important ones, because those get 91% of the click through rates (CTR) from a particular search. According to a 2013 study, the CTR’s for the first page goes as:

TOP 1: 32.5%
TOP 2: 17.6%
TOP 3: 11.4%
TOP 4: 8.1%
TOP 5: 6.1%
TOP 6: 4.4%
TOP 7: 3.5%
TOP 8: 3.1%
TOP 9: 2.6%
TOP 10: 2.4%

More info: https://en.wikipedia.org/wiki/Search_engine_results_page