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Atoms vs BuiltWith

Instant site intelligence vs. enterprise tech profiling

Feature Comparison

FeatureAtomsBuiltWith
SEO Analysis✓✕
CSS Inspection✓✕
Tech Stack Detection✓✓
Core Web Vitals✓✕
AI Readiness Check✓✕
WCAG Contrast Checker✓✕
Color Extraction✓✕
Font Detection✓✕
SERP Overlay✓✕
Export (MD/CSV/JSON)✓✓
One-Time Pricing✓✕

Pricing Comparison

Atoms

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BuiltWith

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Key Differences

BuiltWith is the most comprehensive technology profiling platform available, with a database that tracks millions of websites and thousands of technologies. Its strength lies in enterprise use cases like sales prospecting, market research, and competitive intelligence at scale. If you need to know which of the Fortune 500 use a specific CDN or want to build lead lists based on technology adoption, BuiltWith is purpose-built for that. Atoms serves a different audience and a different workflow. Where BuiltWith is an enterprise data platform with a Chrome extension as one access point, Atoms is a hands-on site analysis tool designed for developers, designers, and SEO professionals who inspect individual pages as part of their daily work. Atoms detects 35+ technologies on any page you visit, but it also gives you SEO analysis, CSS inspection, Core Web Vitals, AI readiness scoring, and WCAG contrast checking in the same panel. The pricing reflects these different markets. BuiltWith's free browser extension provides basic tech detection, but its full platform starts at $295/month ($3,540/year) for Pro access, going up to $495/month for Team plans. Atoms is $49 once, period. For individual professionals who need to understand a site's technology alongside its SEO health and performance metrics, Atoms delivers more practical value at a fraction of the cost. BuiltWith is the right choice for sales teams running technology-based prospecting campaigns or analysts tracking market-wide adoption trends. Atoms is the right choice for the developer, designer, or SEO professional who lands on a page and wants to understand everything about it: what it is built with, how it performs, how its SEO is structured, and what its CSS looks like. These are complementary use cases, and for the latter, Atoms is the clear winner.

Frequently Asked Questions

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