cside Reviews & Product Details

cside was straightforward to implement on our payment pages and cleanly covers PCI DSS requirements 6.4.3 and 11.6.1. The application itself is extremely intuitive, and it’s easy to understand where to go and what to do without needing to read through documentation.

Integration was simple and non-invasive. The implementation required little to no development effort and was ready to be rolled out within a few days. cside proxies our JavaScript by injecting its script first on the page, which allows it to monitor third-party scripts as well as HTTP header changes without adding unnecessary complexity.

Once in place, day-to-day usage is minimal. We receive weekly email reports that surface any relevant changes, and we only need to step in when action is actually required.

Support has been outstanding. We have direct access to the team through a dedicated Slack channel, and response times when issues arise are consistently impressive. Review collected by and hosted on G2.com.

The product is still relatively new, and there are some rough edges and occasional issues. That said, the team’s fast turnaround when problems arise significantly reduces the impact of these friction points. Review collected by and hosted on G2.com.

It finally shows what’s actually happening in the browser. You can see every script, where it comes from, what it’s doing, and whether it’s compliant or risky. The setup is quick, the dashboard is clear, and the alerts make it easy to catch issues before they become problems. Review collected by and hosted on G2.com.

Some parts of the interface still feel early, and it takes a bit to get used to how scripts are grouped and displayed. But once you understand the logic, it’s very powerful. Great onboarding and support to help you get the hang of it. Review collected by and hosted on G2.com.

c/side tells me everything I need to know about a script, and proactively makes sure they are safe to show to the user - if not, they detect/block it and let me know. It's also really helpful to view the script history, so I can figure out what changed if a new version seems a little sketchy. It's really made me realize how big of a problem 3rd party script security is, and there are no other solutions I've tried that dives as deep as c/side. The team is super responsive if you need support for anything, and while I don't need PCI/DSS compliance, it's great to know they cover that as well. Review collected by and hosted on G2.com.

As someone who's not super technical with how the web itself behaves, parts of how the dashboard worked (and how they explained certain concepts) was a little confusing, but reaching out to their team helped clear a lot of it up. I can tell the product is only going to keep getting better and easier to use from here. Review collected by and hosted on G2.com.

It helps us understand what third-party scripts are actually doing on our site, which used to be pretty opaque. Instead of relying on assumptions or manual checks, we can now see script behavior clearly, which has helped us spot issues we wouldn’t have caught otherwise. It’s also been helpful when coordinating with teams during incidents. Review collected by and hosted on G2.com.

Some parts of the interface aren’t immediately intuitive. It took a bit of trial and error to get familiar with the different views and how to filter the data effectively. Also, it would be helpful to have more built-in guidance or examples for interpreting script behavior. Review collected by and hosted on G2.com.

I use so many third party scripts, analytic tools, support widgets, polyfills, animation libraries, cdns, any of these could go rogue and replace the legit content with a keylogger or worst. Cside will email me if that happens, none of them have gone rogue yet, but Cside even warns me and shows me insights when a script changes their behavior. Such a great tool, very easy to use and simple set up on my react app, I check the dashboard every few weeks and always find something interesting about my scripts. Review collected by and hosted on G2.com.

Understanding how the proxy prefixing works and how to prevent double fetch is tricky but once you understand what is going on it's alright. Besides that, I noticed some of my scripts were using timestamp in the URL for cache busting and it flood my dashboard with entries. I changed some of those scripts and used their pattern matching feature in others. Review collected by and hosted on G2.com.

We have tried multiple products in the same space, but unfortunately, almost all of them turned out to be just compliance checkboxes, offering little to no real value.

We did a POC with c/side for PCI compliance, and within the first week, our team started seeing real value.

The dashboard had a good UI/UX and was easy to navigate. The way the product works made a lot of sense and helped us improve our security posture.

We would definitely recommend the product for PCI and more.

The detection capabilities we got with C/Side were unlike anything we saw in other products we tested in the past. Review collected by and hosted on G2.com.

Not much to add in this section, we really like the product. We are excited to see what new features they bring in the future. They have already innovated in client-side attack detection, and we’d love to see the same disruptive approach continue. Review collected by and hosted on G2.com.

Product is great. Onboarding was super easy. After registering I learned a lot about our website and potential threats with foreign scripts. Support is also very helpful—the folks respond very diligently and help as much as they can. Review collected by and hosted on G2.com.

It’s clear that they’re still growing, so one of my qualms is that there are a lot of moving parts… The interface changes here and there but overall it’s pretty manageable. Review collected by and hosted on G2.com.

Third-party party client-side scripts often go unchecked and are a target for malicious actors. c/side puts you back in control of your web properties ensuring that third-party scripts behave as expected and are free from vulnerabilities. It's super quick to implement and once you've done that, you are able to keep tabs on all the changes to your scripts quite easily. Review collected by and hosted on G2.com.

Honestly, there’s not much to dislike about c/side — it’s reliable and thoughtfully designed. I’m eager to see even more advanced customization options as the product continues to grow. The team has been responsive to feedback and quick to ship improvements, which gives me confidence in the roadmap ahead. Review collected by and hosted on G2.com.

With c/side, we now have a way to protect our clients/customers from potential cyber threats that are often overlooked by traditional cybersecurity measures. Review collected by and hosted on G2.com.

It can sometimes introduce minimal latency. Review collected by and hosted on G2.com.

Excellent visibility into client-side scripts. The Notification integration with Slack is a nice touch! Helped me prevent a polyfill like scenario Review collected by and hosted on G2.com.

can't think of anything - will update as I find things. Review collected by and hosted on G2.com.