ButterCMS is a headless, API-first content management system designed for developers and marketing teams who need a flexible backend for managing structured content across web applications, blogs, and marketing pages without being locked into a monolithic CMS architecture. The platform is commonly adopted by SaaS companies, agencies, and product teams building React, Vue, Next.js, or similar front-end stacks that consume content via REST or GraphQL APIs. AIWebsiteDetector's engine identifies ButterCMS-powered sites using a combination of one distinct script pattern and one HTML pattern embedded in the rendered page markup — typically referencing ButterCMS-specific initialization code or content delivery signatures injected at build or runtime. These signals are reliable because ButterCMS content is fetched client-side or server-side rendered in predictable ways that leave consistent fingerprints in the DOM, giving our detection engine a high-confidence identification path even when the CMS is otherwise invisible to casual inspection. ButterCMS operates as a fully hosted SaaS platform with tiered pricing, meaning there is no self-hosted variant to account for, which simplifies detection since all API traffic and asset references trace back to Butter's managed infrastructure.
Paste any URL to instantly detect whether it was built with ButterCMS. Our engine checks 2 technical signals.
ButterCMS is used across many industries. These are the most common website types built on this platform:
Publishers & bloggers
Flexible content management with rich plugin ecosystems
Enterprise businesses
Scalable CMS with extensive customization
NGOs & nonprofits
Affordable open-source platform with wide community support
E-commerce retailers
WooCommerce integration for product catalogs
Every ButterCMS website leaves distinctive technical fingerprints. Here's what to look for:
JavaScript Patterns
1 script pattern linked to ButterCMS
HTML Attributes
1 HTML pattern in the page source
Explore how ButterCMS compares to similar cms tools: