Auditing the site for any HTTP:// link references

It does not matter if you have a single-page website or one that contains a million URLs, you need to audit each page for external http:// link references. This include anchor tags as well as any link tags you may have in your document's head.

All third-party hosted assets, such as CSS, JavaScript libraries, images and fonts on public CDNs, as well as third-party services, such as Google Analytics (GA), are prime targets for HTTP references. These are often overlooked because they are not "owned" by the business.

By now, any reputable third-party service offers HTTPS support. If it does not, you may need to require them to offer HTTPS or find a new provider it they refuse.

As with the preceding Microsoft example , you should also make sure that all references to assets in your site are either HTTPS or are simply absent of the protocol. This would update the site and be ready for any potential future protocols:

//:c.microsoft.com/trans_pixel.aspx...