Why does my site show as 'Not Secure'?

If your site is hosted by BidWrangler and you see an error stating your site is 'Not Secure':

Rest assured, that your site's SSL certificate is in good standing. Site security is very important to us; we automate the renewal of SSL certificates so you don't have to worry about your secure certificates expiring. The reason for the "Not Secure" flag is because the page has elements (content) that are being loaded insecurely.

Usually this will be an image or document that has an insecure link associated. For example:

• http://linktomyimage.png
• vs a secure link (note the https:):
• https://linktomyimage.png

Please make sure that when you add images and content to your web page that link to other sites, they are doing so securely. This means that their source should begin with 'https://'; moreover, this practice is important because browsers may block certain insecure content to preserve the security of the page.