We named ourselves after the part of the web that no one else was protecting: the client-side.
When we founded our company, we chose a name that reflected exactly where modern web risk lives, and where traditional security tools stop. That name is cside.
cside = client-side.
Pronounced like seaside.
Every time someone loads your site or web app, their browser executes dependencies you didn’t write, don’t own, and very often haven’t audited. It all runs on their machine. In the user’s client. And many of those scripts originate from servers you don’t control and can change at any time.
That’s where real risk begins.
Most security tools stop at the server. We start where they left off.
That’s why we built cside.To protect the code that actually touches your users’ browsers.
About the spelling
You may have seen our name written in different ways—cside, Cside, and historically, c/side. The slash helped express the line between what developers can control and what they can’t. But as we’ve grown, the simpler and more universal spelling has become the right identity for us.
So today, our company’s official name is cside.
You may still encounter c/side from our earlier days or see people write it as cside or Cside. While we advocate for using the correct spelling, we embrace the others.
And we’re here to put client-side security on the map.
- Claiming ownership over what your users actually load
- Making invisible threats visible again
- Challenging the idea that the client-side protection is out of scope
We're building a platform that doesn't just patch the past, rather protects the present in its truest form. Today, browsers are the new OS, and scripts are the new supply chain.
So call us c/side, cside, or Cside.
Just know that we exist to protect the part of the web that everyone else forgot.
