It's Zen Cart 1.5.3. I replaced with the curltest.php and now get something like yours.

Testing communications to various destinations. This is a simple diagnostic to determine whether your server can connect to common destinations.
For advanced "details" mode, add ?details=on to the URL.

(Another resource you may find useful for testing your server's overall customer-facing SSL configuration: https://www.ssllabs.com/ssltest/index.html )

Connecting to Zen Cart Version Server (http) ...
GOOD: CURL Connection successful.

Connecting to Zen Cart Version Server (https) ...
GOOD: CURL Connection successful.

Connecting to Zen Cart Support Server (https) ...
GOOD: CURL Connection successful.

Connecting to USPS (port 80)...
GOOD: CURL Connection successful.

Connecting to USPS Test/Staging/Sandbox Server (port 80)...
GOOD: CURL Connection successful.

Connecting to UPS (port 80)...
GOOD: CURL Connection successful.

GOOD: Socket established

Connecting to UPSXML (SSL) (wwwcie.ups.com) ...
GOOD: CURL Connection successful.

Connecting to UPSXML (SSL) (www.ups.com) ...
GOOD: CURL Connection successful.

Connecting to UPSXML (SSL) (onlinetools.ups.com) ...
GOOD: CURL Connection successful.

Connecting to FedEx (port 80)...
GOOD: Socket established

Connecting to Canada Post REST API (SSL) ...
GOOD: CURL Connection successful.

Connecting to PayPal IPN (port 443)...
GOOD: Socket established

GOOD: CURL Connection successful.

Connecting to PayPal IPN (port 443) Sandbox ...
GOOD: Socket established

GOOD: CURL Connection successful.

Connecting to PayPal Express/Pro Server ...
GOOD: CURL Connection successful.

Connecting to PayPal Express/Pro Sandbox ...
GOOD: CURL Connection successful.

Connecting to PayPal Payflowpro Server ...
GOOD: CURL Connection successful.

Connecting to Cardinal Commerce 3D-Secure Server ...
GOOD: CURL Connection successful.

Connecting to AuthorizeNet Production Server ...
GOOD: CURL Connection successful.

Connecting to AuthorizeNet Developer/Sandbox Server ...
GOOD: CURL Connection successful.

Connecting to First Data GGe4 server (SSL)...
GOOD: CURL Connection successful.

Connecting to Payeezy Processing Server...
GOOD: CURL Connection successful.

Connecting to Payeezy Sandbox Server...
GOOD: CURL Connection successful.

Testing completed. See results above.