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Client-side Development
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Autonomous AI script detection and optimization
Client-side Development
Work Here?
Autonomous AI script detection and optimization
Overview
C Side provides an autonomous, AI-powered tool for detecting and optimizing third-party scripts used in web browsers. The service targets businesses that handle sensitive data (e.g., payments) and must meet security regulations. It continuously monitors third-party scripts for unauthorized changes and risky behavior, helping prevent security breaches and reputational or legal harm. The product is delivered as a subscription, offering ongoing monitoring, security improvements, and performance optimization (including caching of static scripts) to boost website speed and reliability. Unlike competitors that rely mainly on threat feeds, C Side analyzes script payloads and behaviors with AI and historical context to deliver more accurate detection and optimization. The company’s goal is to reduce risk and improve compliance and performance for e-commerce platforms, financial institutions, and other online services that use third-party scripts.
About Client-side Development
Industries
Data & Analytics
Enterprise Software
Cybersecurity
Company Size
11-50
Company Stage
Seed
Total Funding
$7.7M
Headquarters
San Francisco, California
Founded
2024
Simplify's Take
What believers are saying
- PCI DSS 4.0 mandates script monitoring by March 2025, driving demand.
- $6M seed funding accelerates tool development for e-commerce and finance.
- Single dashboard prevents fraud, script attacks, and covers SMBs to enterprises.
What critics are saying
- Akamai and Cloudflare free controls commoditize script monitoring now.
- Feroot's broader platform steals e-commerce clients within 6-12 months.
- Open-source ScriptGuard erodes SMB subscriptions in 12-18 months.
What makes Client-side Development unique
- C/side uses custom-tuned LLM for real-time third-party script analysis.
- Advanced proxy service neutralizes malicious scripts while optimizing performance.
- Autonomous AI detects AI agents and ensures PCI DSS 4.0 compliance.
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Funding
Total Funding
$7.7M
Above
Industry Average
Funded Over
2 Rounds
Industry standards
Benefits
Remote Work Options
Unlimited Paid Time Off
Stock Options
Growth & Insights and Company News
6 month growth
↑ 4%1 year growth
↑ 4%2 year growth
↑ 4%cside, an AI-powered website security company, has launched its AI Agent Detection toolkit, enabling businesses to identify and manage traffic from AI agents operating through both traditional automated browsers and AI-powered browsers on consumer devices. The solution detects automated browsers like Comet and ChatGPT Atlas, as well as agentic browser extensions. It allows organisations to customise website experiences based on specific agent types, dynamically modify page elements, and provide observability into agentic traffic patterns. The toolkit addresses a gap in legacy bot detection systems, which cannot identify agents operating within consumer devices. Businesses can use it for security management, revenue optimisation through dynamic pricing, compliance enforcement, or user experience customisation. The solution integrates with cside's VPN detection capabilities for comprehensive traffic intelligence and deploys via a simple SDK.
cside, an AI-powered website security company, has launched Privacy Watch, a platform that monitors and prevents privacy violations from third-party scripts on websites. The solution addresses compliance with regulations including GDPR, CPRA and HIPAA through continuous monitoring, evidence logs and regulation-specific reports. The platform targets a significant blind spot: 94% of modern websites use third-party scripts, but privacy teams lack visibility into how these data processors handle personal information like IP addresses and emails. Privacy Watch uses AI to detect unauthorised data collection, track cross-border data transfers and flag scripts firing before user consent. The launch responds to tightening global privacy regulations, with 20 new US state-level privacy laws enacted between 2023 and 2026, and increasing civil lawsuits over data leaks.
Simon Wijckmans, CEO and founder of c/sideOf the many, many facets of healthcare-industry cybersecurity that IT leaders must be aware of, browser-side attacks and data leaks have particularly high potential to blindside an organization. Just ask leading healthcare provider Kaiser Permanente, which recently suffered a gargantuan data breach compromising the sensitive personal information of 13.4 million past and present insurance holders. The source of this breach wasn’t a nefarious attacker, although it could have been. In this case, careless management of browser-side third-party scripts resulted in unintentional and improper sharing of patients’ data and browsing behavior with external vendors and advertisers.The incident: why third-party browser scripts are a first-rate security concernThe data breach incident stemmed from Kaiser Permanente’s use of tracking codes designed to understand user behavior and usage patterns on the company’s websites and mobile applications. That tracking code captured data including patients’ names, IP addresses, their login status, the web pages they visited, and the search terms they entered to find information in Kaiser’s health encyclopedia. Unfortunately, third-party scripts active on Kaiser’s websites and mobile apps then inadvertently transmitted that data to third-party advertisers. Tracking scripts used by healthcare-industry organizations must comply with HIPAA and other privacy regulations, and Kaiser reported the breach to the U.S
Cybersecurity startup Client-side Development Inc., which does business as C/side, said today it has closed on a $6 million seed funding round to accelerate the development of its tools for monitoring, optimizing and securing browser-side third-party scripts.
c/side, a San Francisco, CA-based cybersecurity company with tools for monitoring, optimizing, and securing vulnerable browser-side third-party scripts, raised $6M in Seed funding
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About Client-side Development
Industries
Data & Analytics
Enterprise Software
Cybersecurity
Company Size
11-50
Company Stage
Seed
Total Funding
$7.7M
Headquarters
San Francisco, California
Founded
2024
There are no jobs for Client-side Development right now.
Find jobs on Simplify and start your career today