What is c/side?

Effectively tracking third-party scripts removes ambiguity, guaranteeing that you remain informed about what is sent to your users' browsers, while also boosting script efficiency by as much as 30%. The uncontrolled existence of these scripts within users' browsers can lead to major complications when issues arise, resulting in negative publicity, possible legal repercussions, and claims for damages due to security violations. Organizations that manage cardholder information must adhere to PCI DSS 4.0 requirements, specifically sections 6.4.3 and 11.6.1, which mandate the implementation of tamper-detection mechanisms by March 31, 2025, to avert attacks by alerting relevant parties of unauthorized changes to HTTP headers and payment details. c/side is distinguished as the only fully autonomous detection system focused on assessing third-party scripts, moving past a mere reliance on threat intelligence feeds or easily circumvented detection methods. Utilizing historical data and advanced artificial intelligence, c/side thoroughly evaluates the payloads and behaviors of scripts, taking a proactive approach to counter new threats. Our ongoing surveillance of numerous websites enables us to remain ahead of emerging attack methods, as we analyze all scripts to improve and strengthen our detection systems continually. This all-encompassing strategy not only protects your digital landscape but also cultivates increased assurance in the security of third-party integrations, fostering a safer online experience for users. Ultimately, embracing such robust monitoring practices can significantly enhance both the performance and security of web applications.

Pricing

Price Starts At:
$99 per month
Free Version:
Free Version available.

Integrations

Offers API?:
Yes, c/side provides an API

Screenshots and Video

Company Facts

Company Name:
c/side
Company Location:
United States
Company Website:
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Product Details

Deployment
SaaS
Training Options
Documentation Hub
Online Training
On-Site Training
Support
Web-Based Support

Product Details

Target Company Sizes
Individual
1-10
11-50
51-200
201-500
501-1000
1001-5000
5001-10000
10001+
Target Organization Types
Mid Size Business
Small Business
Enterprise
Freelance
Nonprofit
Government
Startup
Supported Languages
English

c/side Categories and Features

Website Security Software

VikingCloud reported that the c/side platform successfully detected and halted the third-party script in real time to safeguard against data breaches.

PCI Compliance Software

You offer capabilities for immediate payload analysis, automatic prevention measures, comprehensive historical data storage, and ready-to-use reports for auditors that align seamlessly with the testing standards outlined in PCI DSS 4.0.1.

Access Control
Compliance Reporting
Exceptions Management
File Integrity Monitoring
Intrusion Detection System
Log Management
PCI Assessment
Patch Management
Policy Management

IT Security Software

Combat Magecart, formjacking, token theft, cryptojacking, and various other threats! Utilizing a proxy-based framework, a proxy is strategically positioned between the third-party scripts and the user's browser, enabling it to monitor the code that is retrieved by the user's browser. The client-side proxy ensures constant, comprehensive visibility and oversight of all third-party scripts running in the user's browser, maintaining this level of surveillance 100% of the time without any sampling.

Anti Spam
Anti Virus
Email Attachment Protection
Event Tracking
IP Protection
Internet Usage Monitoring
Intrusion Detection System
Spyware Removal
Two-Factor Authentication
Vulnerability Scanning
Web Threat Management
Web Traffic Reporting

GDPR Compliance Software

The proxy and crawler systems solely retain the requester's IP address for the purpose of incident analysis; this information is not sold or utilized for marketing purposes. All data collected by the proxy and crawler is securely stored within c/side-managed clusters located on AWS.

Access Control
Consent Management
Data Mapping
Incident Management
PIA / DPIA
Policy Management
Risk Management
Sensitive Data Identification

Compliance Software

An independent evaluation from VikingCloud verifies that when set up correctly, both the hybrid proxy and crawler modes effectively meet the specified criteria by persistently hashing, analyzing, and, when needed, blocking scripts in real time. The c/side platform features a specialized PCI DSS dashboard that provides detailed insights related to requirements 6.4.3 and 11.6.1.

Archiving & Retention
Artificial Intelligence (AI)
Audit Management
Compliance Tracking
Controls Testing
Environmental Compliance
FDA Compliance
HIPAA Compliance
ISO Compliance
Incident Management
OSHA Compliance
Risk Management
Sarbanes-Oxley Compliance
Surveys & Feedback
Version Control
Workflow / Process Automation

Client-Side Protection Platform

Achieving complete session coverage, our system employs DOM-level comparison and detects threats based on specific conditions such as geographic location, time, or user grouping. The client-side component intercepts every request made to third-party sources, retrieves the corresponding JavaScript, and analyzes it in real-time. This proactive approach ensures that any harmful code is prevented from executing within the browser environment.

Bot Detection and Mitigation Software

c/side is an innovative client-side security platform crafted to shield digital enterprises from the escalating risks posed by browser-related attacks. In contrast to conventional security measures that depend primarily on threat intelligence feeds, c/side utilizes a fully autonomous detection mechanism that leverages historical data and artificial intelligence to scrutinize the behavior and content of third-party scripts. This forward-thinking strategy enables c/side to recognize and neutralize potential threats before they can impact your users, providing strong defense against zero-day exploits and supply chain vulnerabilities. With its distinctive proxy solution, c/side delivers unmatched protection for client-side applications, establishing itself as a crucial asset for any organization intent on fortifying their online presence.

Artificial Intelligence Software

The c/side AI system identified that the altered script displayed characteristics typical of a keylogger and subsequently marked it as harmful. Users have the option to examine the script and, if needed, prevent access by blocking the associated hash values.

Chatbot
For Healthcare
For Sales
For eCommerce
Image Recognition
Machine Learning
Multi-Language
Natural Language Processing
Predictive Analytics
Process/Workflow Automation
Rules-Based Automation
Virtual Personal Assistant (VPA)

AI Security Software

The detection system operates on an open-source large language model that functions exclusively within a self-managed setting.

c/side Customer Reviews

Write a Review
  • Reviewer Name: Pedro T.
    Position: Consultant
    Has used product for: 6-12 Months
    Uses the product: Weekly
    Org Size (# of Employees): 1 - 25
    Feature Set
    Layout
    Ease Of Use
    Cost
    Customer Service
    Would you Recommend to Others?
    1 2 3 4 5 6 7 8 9 10

    Great tool for security and PCI DSS compliance

    Updated: Jun 10 2025
    Summary

    Overall it's a great tool that not only makes compliance very easy but also provides the highest level of security in the market.

    Positive

    Proxy solution that checks every scripts instead of a sample of scripts.
    Very organized dashboards and reports that make PCI compliance very easy.
    Very easy to implement.

    Negative

    Sometimes it takes a couple seconds to load, nothing major though.

    Read More...
  • Reviewer Name: A Verified Reviewer
    Position: CTO
    Has used product for: Less than 6 months
    Uses the product: Weekly
    Org Size (# of Employees): 1 - 25
    Feature Set
    Layout
    Ease Of Use
    Cost
    Customer Service
    Would you Recommend to Others?
    1 2 3 4 5 6 7 8 9 10

    Gives us needed visibility into client-side activity

    Date: Jun 10 2025
    Summary

    Overall, c/side has been incredibly valuable for finally seeing what third-party scripts are doing on our site. This clear insight helps us catch problems and coordinate better. The interface could be more intuitive, but the visibility it provides is a huge win for our security.

    Positive

    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.

    Negative

    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.

    Read More...
  • Reviewer Name: John B.
    Position: CEO
    Has used product for: Less than 6 months
    Uses the product: Daily
    Org Size (# of Employees): 1 - 25
    Feature Set
    Layout
    Ease Of Use
    Cost
    Customer Service
    Would you Recommend to Others?
    1 2 3 4 5 6 7 8 9 10

    Essential Tool for Modern Web Security

    Date: Jun 27 2025
    Summary

    Integration was seamless, and the support team is responsive and knowledgeable.

    Positive

    c/side offers real-time monitoring and protection against third-party script threats, ensuring our website remains secure. Its analysis and comprehensive dashboard provide clear insights, making compliance with standards like PCI DSS straightforward.

    Negative

    While the platform is robust, there’s room for more integrations with niche platforms. However, the team appears proactive in expanding capabilities.

    Read More...
  • Reviewer Name: A Verified Reviewer
    Position: Information Security Manager
    Has used product for: Less than 6 months
    Uses the product: Weekly
    Org Size (# of Employees): 5,000 - 9,999
    Feature Set
    Layout
    Ease Of Use
    Cost
    Customer Service
    Would you Recommend to Others?
    1 2 3 4 5 6 7 8 9 10

    Great Solution

    Date: Jul 16 2025
    Summary

    Engagement to poc the solution was easy. The team that assisted us are smart, know the product well, and provided us with everything we needed to work through our set up and integration. Pushing through to our production environment was easy and once we had data, the implementation team were great explaining everything and walking us through the solution. Enhancements to the solution during the integration and deployment did not affect our timeline. Everything went smoothly.

    Positive

    Ease of integration into our pages. Support is responsive and worked through all of our implementation and post implementation items. Great group of people to work with.

    Negative

    the SSO integration could use some polishing, but support was helpful and knowledgeable to get integration with my SSO solution worked out.

    Read More...
  • Reviewer Name: Connor C.
    Position: Software Engineer
    Has used product for: Less than 6 months
    Uses the product: Weekly
    Org Size (# of Employees): 1 - 25
    Feature Set
    Layout
    Ease Of Use
    Cost
    Customer Service
    Would you Recommend to Others?
    1 2 3 4 5 6 7 8 9 10

    Great security solution with great usability

    Date: Jul 24 2025
    Summary

    Overall, this is a really great platform and so is the team, it's clear they really want to solve the problem of insecure/malicious third party scripts on the web. Would recommend giving it a try for sure.

    Positive

    This might be the best client-side security solution out there, this platform makes it super easy to make sure your site is secure. It shows you what actual scripts are running on your site, automatically flags and blocks malicious ones, and keeps track of all script history so you can see how they've changed between versions. It was pretty quick to set up, they make PCI compliance really easy, and their support is top-tier. Not much to dislike!

    Negative

    The dashboard took a little bit of exploring to figure out where a lot of the information was. Some of their useful features are a bit buried, but their team was a great in helping me find what I needed.

    Read More...
  • Reviewer Name: A Verified Reviewer
    Position: Owner
    Has used product for: Less than 6 months
    Uses the product: Weekly
    Org Size (# of Employees): 1 - 25
    Feature Set
    Layout
    Ease Of Use
    Cost
    Customer Service
    Would you Recommend to Others?
    1 2 3 4 5 6 7 8 9 10

    Insane quality

    Date: Apr 01 2025
    Summary

    Really cool product with a young team that jumped on a few calls when we wanted extra information or had questions. Recommended!

    Positive

    We needed a product like this for our PCI compliance (now needed for client-side monitoring and stuff). We found they had a free tier and after trying it and talking to their team we pulled the trigger. Super easy installation, dashboard looks perfect and just works. Pretty happy customer thus far!

    Negative

    The free tier puts you on a waitlist. Our access got granted within the hour but would be nice if you have immediate access. Probably for quality control so I understand.

    Read More...
  • Reviewer Name: A Verified Reviewer
    Position: Software Engineer
    Has used product for: 6-12 Months
    Uses the product: Daily
    Org Size (# of Employees): 26 - 99
    Feature Set
    Layout
    Ease Of Use
    Cost
    Customer Service
    Would you Recommend to Others?
    1 2 3 4 5 6 7 8 9 10

    I feel safe!

    Date: Jul 24 2025
    Summary

    At first, I was worried that running everything through a proxy might slow things down or break something, but honestly, performance hasn’t taken a hit at all—in fact, some things actually load faster. What really stood out was how much safer we felt once it was up and running—we could finally see what was changing on our site, block risky behavior, and stay compliant without having to micromanage every vendor. It’s one of those tools that gives you peace of mind in the background while letting you stay focused on building.

    Positive

    I think that the compliance tools for regulations are very well integrated, and the dashboard shows script changes with helpful AI explanations and options. I also appreciate the responsive support and seamless Slack/Teams alerts, plus easy setup which did not take long.

    Negative

    The only con I would say is that it's hard to understand the dashboard at first, if you are non technical.

    Read More...
  • Reviewer Name: A Verified Reviewer
    Position: CEO
    Has used product for: 6-12 Months
    Uses the product: Weekly
    Org Size (# of Employees): 1 - 25
    Feature Set
    Layout
    Ease Of Use
    Cost
    Customer Service
    Would you Recommend to Others?
    1 2 3 4 5 6 7 8 9 10

    Exelent tool for security insights

    Date: Jun 10 2025
    Summary

    Great tool, would definitely recommend. Never thought a security tool could give me so many insights.

    Positive

    - Great way of visualizing security related insights
    - They are releasing new updates at a fast pace
    - Installation was super easy

    Negative

    - Took me a while before I realized what they all had to offer.

    Read More...
  • Reviewer Name: Alexa K.
    Position: CRO
    Has used product for: 6-12 Months
    Uses the product: Weekly
    Org Size (# of Employees): 1 - 25
    Feature Set
    Layout
    Ease Of Use
    Cost
    Customer Service
    Would you Recommend to Others?
    1 2 3 4 5 6 7 8 9 10

    Finally I get what the marketing people add to my site

    Date: Jul 24 2025
    Summary

    CSide has been a game-changer for understanding what's actually happening on our website. As someone who needs to keep track of all the scripts and tracking codes that get added by our marketing team, this tool is invaluable.

    Positive

    Clear visibility into code per site and per page
    Can examine script contents and functionality
    Shows data transmission and DOM manipulation clearly
    Great for auditing website scripts and tracking
    The developers are responsive to feedback - when I mentioned the data overload issue, they shared their new dashboard design that should address this concern.

    Negative

    Can feel overwhelming with large websites due to the amount of data

    Read More...
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