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What is SSL and why it matters.
You have seen the padlock in the address bar. This post explains what it means, in plain words.
What SSL does
An SSL certificate lets your website use HTTPS. That means the data travelling between a visitor and your site is encrypted, so others on the network cannot read it.
It also helps confirm that the visitor has reached the real site and not a copy of it.
Why it matters
- Browsers warn visitors when a site does not use HTTPS.
- Any form, login or checkout should be protected.
- Visitors trust a site more when the padlock is there.
Common problems
A site can show a warning when some images or scripts still load over plain HTTP, which is called mixed content. Fixing the links to use HTTPS usually solves it.
Certificates also expire, so make sure renewal is automatic or you have a reminder.