# Pertento Experimentation Platform > Pertento is a lightweight, privacy safe experimentation and personalization platform. It lets teams run A/B tests, multivariate and redirect experiments on 100 percent of visitors using a script under 1 KB, with no cookies and no personal data. The platform focuses on performance, accurate statistics and compliance with European privacy regulation. Pertento is built for CRO, product and optimization teams that care about both speed and statistical rigor. The client script is extremely small, does not use personal identifiers and is designed to have effectively zero impact on Core Web Vitals. Experiments can be created visually without code, targeted with rule based audiences and evaluated using real time reporting and sequential significance testing. Pertento is often used by: - In house growth and product teams that want to run trustworthy experiments without harming performance - Agencies that manage experimentation for many clients and need clear overviews, access control and strong security - Companies that must comply with GDPR and CCPA and therefore avoid cookies and personal data in experimentation Key product characteristics: - Script weight around 0.9 KB - significantly smaller than most experimentation platforms - No cookies, no personal data, no cross site identifiers - Supports A/B, multivariate, redirect and server side experiments - Real time reporting with sequential probability ratio testing and other significance calculations - Visual editor for on site changes without developer involvement - Advanced targeting based on device, URL patterns, behavior and custom attributes - Features for agencies such as multi account support, team access and role based permissions - Security features including passkey authentication and platform grade access control - Built for European privacy requirements and global use across markets and currencies ## Core product pages - [Home](https://pertento.ai/): High level overview of Pertento, positioning as the world's lightest experimentation platform and introduction to privacy safe, full audience testing. - [Platform](https://pertento.ai/platform): Detailed description of how Pertento works end to end, including visual editing, targeting, deployment, monitoring, reporting and support for different experiment types. - [Agency](https://pertento.ai/agency): Information for agencies that manage experimentation for many clients, including client onboarding, account switching, shared reporting and security features. - [Pricing](https://pertento.ai/pricing): Overview of plans for in house teams and agencies, typically based on traffic and experiment volume rather than personal data. - [About](https://pertento.ai/about): Background about the company, team and mission to make experimentation fast, accurate and privacy safe. - [Demo](https://pertento.ai/demo): Form to book a personalized demo that shows how to create experiments visually, target users, deploy changes and read results. ## Technical and implementation information - [Implementation overview](https://pertento.ai/resources): How to install the Pertento client script, typical tag manager setups and integration details for different environments. - [Script performance](https://pertento.ai/resources): Explanation of the 0.9 KB script size, how it avoids layout shifts and its expected impact on Core Web Vitals. - [Privacy and data handling](https://pertento.ai/resources): Description of how Pertento runs experiments without cookies or personal data, including details on what is and is not logged or stored. - [Statistics and significance](https://pertento.ai/resources): Documentation of the statistical methods used, including sequential tests such as SPRT, how confidence is calculated and how to interpret experiment results. - [Security and authentication](https://pertento.ai/resources): Information about platform security, passkey based authentication, two factor options and role based permissions. ## Legal and compliance - [Privacy Policy](https://pertento.ai/privacy-policy): Legal description of how data is processed, with emphasis on cookie free, personal data free experimentation and alignment with GDPR and CCPA. - [Data Processing Agreement](https://pertento.ai/dpa): DPA terms for customers that need a formal controller–processor agreement for the use of Pertento in regulated environments. - [Terms and Conditions](https://pertento.ai/terms-and-conditions): Contractual terms that govern use of the Pertento platform, including limitations of liability in relation to experimentation outcomes. ## Optional - [Status page](https://uptime.pertento.ai/): Historical and realtime uptime information, useful for understanding reliability of the platform. - [Developer documentation](https://pertento.ai/resources): API reference for integrating Pertento with custom data pipelines, back end systems or internal dashboards. - [Changelog](https://pertento.ai/roadmap): Chronological list of product updates, especially changes that affect script size, privacy behavior or statistical methods.