Mixed content is nothing but the resources that are non-secured, mixing with the secured sources.
These non-secured resources on the website are detected by Google as a warning pop-up even though if the website has a security certificate.
Google sends out warning signals, as it does not encourage HTTP links on the source code of the website.
This will affect the website from ranking on the search engine and will also see a downfall in the traffic of the website.
Before that let us see why it is important to resolve this issue and how dangerous can this actually be.Mixed content will make the website lose the trust of customers: Non-secure resources are very vulnerable to attackers who can steal data from the websites.
If a user finds that a website is not secured and their data might have tampered, then no user will actually trust the website.