code: public function sendInstalledReq()
      {
          $pageViewParams = [
              'dl'    =>  self::GA_PAGEVIEW_URL . self::FASTLY_INSTALLED_FLAG,
              'dh'    =>  preg_replace('#^https?://#', '', rtrim(self::GA_PAGEVIEW_URL, '/')),
              'dp'    =>  '/'.self::FASTLY_INSTALLED_FLAG,
              'dt'    =>  ucfirst(self::FASTLY_INSTALLED_FLAG),
              't'     =>  self::GA_HITTYPE_PAGEVIEW,
          ];
  
          $this->sendReqToGA($pageViewParams, self::GA_HITTYPE_PAGEVIEW);
  
          $eventParams = [
              'ec'    =>  self::GA_FASTLY_SETUP,
              'ea'    =>  'Fastly '.self::FASTLY_INSTALLED_FLAG,
              'el'    =>  $this->getWebsiteName(),
              'ev'    =>  0,
              't'     =>  self::GA_HITTYPE_EVENT
          ];
  
          $result = $this->sendReqToGA(array_merge($pageViewParams, $eventParams));
  
          return $result;
      }
docs: Sends request to GA that the Fastly module is installed
  
  @return bool|string $result