Apologies if the question is a repeated one but I couldn't find a solution for this. I have following HTML code on the home page of my website. <head><title>Sample title for illustrative purpose | example.com</title><meta name = description content = Here is an example of what a snippet looks like in Google's SERPs. The content that appears here is usually taken from the Meta Description tag if relevant.><meta name = keywords content = keyword1, keyword2></head><body><header><a href=https://www.example.com class=navbar-brand>Home Page Link</a></header><h1>Sample Heading</h1>SERP shows following result:Question: Why is example.com (the circled one in attached pic) is taken into account on SERP when it's not there in the title? 
Site URL being displayed before TITLE on SERP
seo;google search;serps