A cybersecurity update is on the horizon; namely, both Chrome and Firefox, the popular browsers, will start blocking websites that still use the insecure Symantec/DigiCert TLS certificates. If your website still uses these, you should get them replaced as soon as possible.
In addition to Symantec, your site could be marked as insecure by the popular browsers if its certificate was issued by any of the following providers:
Luckily, determining if your website’s certificate is problematic in this regard is quite simple. All you need to do is visit Symantec’s official SSL checker, and you should know the verdict within seconds. However, do bear in mind that the checker does not reveal problems associated with other TLS certificate providers.
The good news is that Symantec is willing to replace the bad certificate for free.
Alternatively, if you’ve got a DV TLS certificate, you can also use the ever-popular Let’s Encrypt service. Business OV and EV certificates, on the other hand, require a bit more work on your end. For instance, the latter two certificates require that you validate your organisation’s legally registered name. In other words, trying to input an acronym is not going to work.
Moreover, OV and EV certificates also require an organisation to list its legal name, phone, and address on the web, validated by a trusted third party. Google My Business, for instance, is one which you could use.
In any event, you’ve got until October to act, so the best course of action is to make it swift.