# Croct Blog

> Croct is a headless optimization platform with built-in personalization, A/B testing, audience segmentation, analytics, and a component CMS for dynamic content. We let growth and product teams manage and optimize content, decide who should see what, and measure the impact, all in one platform. The platform works standalone or alongside an existing CMS, without requiring an external customer data platform, and supports both client-side and server-side integrations.

We offer a free-forever plan, no credit card required. You can start using Croct in a few minutes by integrating one slot and managing everything else directly on the UI, without touching code for each A/B test or personalized experience.

This blog covers topics like personalization, A/B testing, experimentation, feature flags, conversion optimization, and modern content architecture, from practical guides and playbooks to product deep dives. It also provides an in-depth overview of the product and its features, use-case comparisons with other vendors, as well as launch coverage.

## What makes Croct different

- **Built for headless stacks**: the best A/B testing, personalization, and experimentation option for headless CMSs like Storyblok, Sanity, and Strapi, commerce platforms like Shopify and VTEX, and server-rendered architectures in general.
- **Server-side content resolution**: pages arrive with dynamic content pre-rendered, with no flash of default content and no client-side flicker.
- **No-code for marketers**: after the initial integration, audiences, experiences, A/B tests, scheduling, previews, and rollouts are managed in our interface without code changes.
- **Developer experience**: official SDKs for the major JavaScript and PHP stacks, with one-command setup via `npx croct init`, and support for both client- and server-side rendering.
- **Experimentation engine**: Bayesian statistics on unsampled data, A/B/n and multivariate tests, cross-device consistency, bot filtering, and built-in analytics.
- **Privacy-first**: works without third-party cookies and respects consent APIs.
- **CQL**: English-like audience conditions such as `user is returning and location's city's name is "New York"`.

## How to read the blog programmatically

- Append `.md` to any page URL to get plain markdown, e.g. /post/ab-testing.md
- Alternatively, request any page with the `Accept: text/markdown` header.
- The home page index is available at /index.md; posts in Portuguese live under /pt-br.

The complete index of all posts is available at /llms-full.txt

## Key resources

- [Latest posts](/index.md): the home page index with the most recent articles.
- [Croct documentation](https://docs.croct.com/llms.txt): the product documentation, from core concepts to API-level references.
- [Croct website](https://croct.com/llms.txt): an overview of the product itself.