code: public function aroundDispatch(FrontController $subject, callable $proceed, ...$args) // @codingStandardsIgnoreLine - unused parameter
      {
          $isRateLimitingEnabled = $this->config->isRateLimitingEnabled();
          $isCrawlerProtectionEnabled = $this->config->isCrawlerProtectionEnabled();
  
          if (!$isRateLimitingEnabled && !$isCrawlerProtectionEnabled) {
              return $proceed(...$args);
          }
  
          $path = strtolower($this->request->getPathInfo());
  
          if ($isRateLimitingEnabled && $this->sensitivePathProtection($path)) {
              return $this->response;
          }
  
          if ($isCrawlerProtectionEnabled && $this->crawlerProtection($path)) {
              return $this->response;
          }
  
          return $proceed(...$args);
      }
docs: Check if request is limited
  @param FrontController $subject
  @param callable $proceed
  @param mixed ...$args
  @return \Magento\Framework\App\Response\Http|\Magento\Framework\App\ResponseInterface