Feedback:

• When the Matomo admin didn't specify the website URLs alias for the Website (in Matomo), then Matomo will think that a visitor viewing Example.com/Page2 coming from Example.com/Page1 is coming from a Website Referrer Example.com/Page1. So it will mistakenly overwrite direct entry with the current website URL as referrer. So wondering if in:

  matomo/plugins/Referrers/Columns/Base.php

  Lines 108 to 117 in 9eb3be3

  	$this->typeReferrerAnalyzed = Common::REFERRER_TYPE_WEBSITE;
  	$this->nameReferrerAnalyzed = Common::mb_strtolower($this->referrerHost);
  	$urlsByHost = $this->getCachedUrlsByHostAndIdSite();
  	$directEntry = new SiteUrls();
  	$path = $directEntry->getPathMatchingUrl($this->referrerUrlParse, $urlsByHost);
  	if (!empty($path) && $path !== '/') {
  	$this->nameReferrerAnalyzed .= rtrim($path, '/');
  	}

  
  we would want to also look at the current Page URL and "Add to the Site URLs alias" the current page url hostname?

@mattab Is example.com the main URL for the site? Or an alias URL?

example.com would be the main URL (or even alias URL) but which wasn't specified in Website URLs field.

@mattab I see there's no required main URL field anymore. So you mean to add hostname(url) to the list of website URLs, makes sense.

Looks good to me (quick look). Looking forward to the tests 👍

Added integration tests, system tests will need to be fixed, ready for a review.