Websites using DMARC

About DMARC

DMARC (Domain-based Message Authentication, Reporting, and Conformance) is an email authentication protocol that builds on SPF and DKIM to help email domain owners protect their domain from unauthorized use, commonly called email spoofing.

Identifying DMARC in a website's stack reveals key decisions about its architecture, performance strategy, and development approach. Web Reveal automatically detects DMARC and hundreds of other technologies by analyzing page source, HTTP headers, and JavaScript signatures—giving you instant insight into how any site is built.