array(41) {
  ["url"]=>
  string(24) "https://tools.mamp.info/"
  ["content_type"]=>
  string(24) "text/html; charset=UTF-8"
  ["http_code"]=>
  int(200)
  ["header_size"]=>
  int(355)
  ["request_size"]=>
  int(53)
  ["filetime"]=>
  int(-1)
  ["ssl_verify_result"]=>
  int(0)
  ["redirect_count"]=>
  int(0)
  ["total_time"]=>
  float(0.121292)
  ["namelookup_time"]=>
  float(0.000474)
  ["connect_time"]=>
  float(0.010377)
  ["pretransfer_time"]=>
  float(0.02823)
  ["size_upload"]=>
  float(0)
  ["size_download"]=>
  float(0)
  ["speed_download"]=>
  float(0)
  ["speed_upload"]=>
  float(0)
  ["download_content_length"]=>
  float(-1)
  ["upload_content_length"]=>
  float(0)
  ["starttransfer_time"]=>
  float(0.121264)
  ["redirect_time"]=>
  float(0)
  ["redirect_url"]=>
  string(0) ""
  ["primary_ip"]=>
  string(17) "2a00:1158:0:3e5::"
  ["certinfo"]=>
  array(0) {
  }
  ["primary_port"]=>
  int(443)
  ["local_ip"]=>
  string(21) "2a02:4780:3f:1234::30"
  ["local_port"]=>
  int(39324)
  ["http_version"]=>
  int(3)
  ["protocol"]=>
  int(2)
  ["ssl_verifyresult"]=>
  int(0)
  ["scheme"]=>
  string(5) "https"
  ["appconnect_time_us"]=>
  int(28169)
  ["connect_time_us"]=>
  int(10377)
  ["namelookup_time_us"]=>
  int(474)
  ["pretransfer_time_us"]=>
  int(28230)
  ["redirect_time_us"]=>
  int(0)
  ["starttransfer_time_us"]=>
  int(121264)
  ["posttransfer_time_us"]=>
  int(28241)
  ["total_time_us"]=>
  int(121292)
  ["effective_method"]=>
  string(4) "HEAD"
  ["capath"]=>
  string(0) ""
  ["cainfo"]=>
  string(32) "/etc/pki/tls/certs/ca-bundle.crt"
}

Array
(
    [https://example.com/] => Array
        (
            [success] => 
            [error] => SSL certificate problem: unable to get local issuer certificate
        )

    [https://www.google.com/] => Array
        (
            [success] => 1
            [http_code] => 200
            [unit] => milliseconds
            [timings] => Array
                (
                    [dns] => 1.538
                    [tcp] => 4.132
                    [tls] => 0
                    [ttfb] => 68.697
                    [total] => 68.835
                )

        )

    [https://tools.mamp.info/] => Array
        (
            [success] => 1
            [http_code] => 200
            [unit] => milliseconds
            [timings] => Array
                (
                    [dns] => 1.895
                    [tcp] => 6.639
                    [tls] => 0
                    [ttfb] => 102.877
                    [total] => 102.902
                )

        )

    [https://www.cloudflare.com/] => Array
        (
            [success] => 1
            [http_code] => 200
            [unit] => milliseconds
            [timings] => Array
                (
                    [dns] => 8.488
                    [tcp] => 4.218
                    [tls] => 0
                    [ttfb] => 506.737
                    [total] => 506.856
                )

        )

)