BuiltWith vs Proofy
A factual comparison of features, pricing, and capabilities.
BuiltWith
BuiltWith is a web technology profiler and lead generation tool that reports which technologies websites use and builds lead lists of companies by technology, spend and lifecycle signals. Individual site lookups are free; paid plans add technology reports, keyword reports and CRM integration.
Proofy
Proofy is an email verification service for bulk list cleaning and real-time single verification through an API, with SMTP, syntax, domain, disposable and accept-all detection. Credits are sold pay-as-you-go or by subscription, never expire, and unknown results are not charged.
Pricing comparison.
Monthly rates shown. Annual billing may offer discounts. Visit official sites for current pricing.
Feature comparison.
| Feature | BuiltWith | Proofy |
|---|---|---|
| Technology lookups for individual sites | ||
| Lead lists by technology | ||
| Keyword reports | ||
| Retail reports | ||
| Trends and technology history | ||
| Predictive leads | ||
| Advanced lookup of historical technology use | ||
| Report prioritization by spend, technology use and location | ||
| Unlimited report download | ||
| Bulk email verification | ||
| Single verification in real time | ||
| Email verifier API | ||
| Duplicate email remover | ||
| ISP detection | ||
| Disposable and temporary detection | ||
| Accept-all detection | ||
| Syntax validation | ||
| SMTP verification | ||
| Mailbox full detection |
Native integrations.
BuiltWith
Proofy
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Information gathered from official sources and may change. Pricing and features last verified 9/4/2026. Please visit the official websites for the most current information.