Free - results are never published
free domain check

Check your domain in 30 seconds

Grade one domain instantly on TLS and headers, SPF/DKIM/DMARC or known breach exposure. The grade is visible without an account; the concrete fixes arrive the moment they are valuable.

Pick a wavelength, enter your domain, and receive a compact report.

A standalone check that fits the same score.

The free domain check is przm's first blue wavelength. Start without a connection, see instantly where it pinches, and use the same baseline later in Spectrum and Lens.

TLS and security headers
SPF, DKIM and DMARC
Known breach exposure
Free monthly monitoring after consent