Other things to try is an "unsafe script"

[Craftyawesome]

(referring to thread and 404 not found errors)
Tested on chrome and edge, both block it.

[CTCaer]

The script is actually the google analytics and search engine script.
It's safe. The implementation procs the browsers.

It tries to load HTTP address in a HTTPS connection. This results to a mixed security.

Devs can easily fix it by changing the following line in their site and change HTTP to HTTPS:
<script type="text/javascript" src="http://linkhelp.clients.google.com/tbproxy/lh/wm/fixurl.js"></script></td>

This will download the google script over a secure connection and will not proc the unsafe message