Android apps that fail to validate SSL

The spreadsheet links to Vulnerability Note VU#582497 (http://www.kb.cert.org/vuls/id/582497). This links to additional information in CERT Oracle Secure Coding Standard for Java (https://www.securecoding.cert.org/confluence/pages/viewpage....). That states that a compliant solution example may be found in "Android Application Secure Design/Secure Coding Guidebook" (http://www.jssec.org/dl/android_securecoding.pdf). Which is written in Japanese.

"Wow, this file is really popular! It might be unavailable until the crowd clears. Try again."

Surely Google's infrastructure can manage to serve a spreadsheet!

It's down.

Yeah, I'm getting "This page isn't available offline. Connect to the Internet and refresh to view it online."

Obviously, I'm online.

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But not for me ;(

Nor for me

So what specifically are they meaning when they say "Fail to validate SSL"? Does that mean they are not certificate pinning?