Google Analytic is a free web tool which provides service included website tracking and reporting etc. This tool is offered by Google and launched in Nov 2015. Before that tool Urchin was used by webmasters.

Urchin, also a web statistics tool which analysis web server log file content and traffic of a website. Sales of Urchin products ended on March 28, 2012

Google Analytics now becomes a strong tracking tool to manage and sort traffic from all sources.

About Google Analytics Referral Exclusions - Before covering this topic first should know about Referral Traffic.
Referral Traffic – The traffic coming from other domains to our domains is called referral traffic.

We will cover following topics as well:

  •     What Is Referral Exclusion?
  •     How Does Referral Exclusion Works?
  •     How Excluding Referral Traffic Affects Your Data
  •    Which Domains Should Be Excluded?
  •    What Is Google Analytics Referral Exclusions List?
  •     How To Configure Referral Exclusion List?


What is Referral Exclusion?
I have outlined above about referral traffic. Excluding that traffic from traffic report is called Referral Exclusion.
If you don’t want to see referral traffic from a particular domain then we exclude that domain in Google analytic.

How Does Referral Exclusion Works?
We exclude traffic from a listed domain and you will no longer see traffic from that domain until you remove from Referral Exclusions list.

Steps To See Referral Traffic:
Acquisitions -> All Traffic -> Referrals (Show all referral domains through which traffic is coming from those domains to your domain)
Steps To Check Referral Traffic in Google Analytic - Sunny SEO Hacks

How Excluding Referral Traffic Affects Your Data?
Yes, it effects.
Referral report effects by excluding traffic from a particular domains.
That means if you exclude traffic from a specific domain, then visitors coming directly from that page are not triggering a new session.

Which Domains should be excluded?

  • Third-party payment systems 
  •  Multi-domain website
  • Other domains


What is Google Analytics Referral Exclusions list?
Google Analytics Referral Exclusions list, where all referral domains are listed from which you don’t want to see traffic from them.

How To Configure Google Analytics Referral Exclusions?

  • First make a list of domains which you want to exclude traffic.
  • Go to Admin Section in Google Analytic.
  • Goto Property Section-> Tracking Info-> Click on Referral Exclusions list
  • Add Domains you want to exclude.
Google Analytics Referral Exclusions list - Sunny SEO Hacks


Conclusion
Google Analytic is a good tool for sorting traffic according to your choice and it is necessary in Internet marketing field to exclude domain if you are using sub-domains and third party payment gateway.