How we test & verify

NameProf is a tools-first site: our guides and glossary are written from the same checks the product runs. This page explains where our data comes from and how we keep results honest.

1. What we check, and how

Wherever a check can be performed directly, we do it ourselves rather than relying on a third party: DNS records, SSL/TLS certificates, email authentication (SPF, DKIM, DMARC), and registry availability via RDAP. For signals that require specialist data — WHOIS/RDAP records, hosting and technology fingerprints, reputation, and valuation comparables — we read authoritative sources and normalize the results into one consistent view.

2. Sources

Availability and ownership come from registry RDAP/WHOIS responses. DNS comes from live resolver queries. Certificate details come from the live TLS handshake. Each guide cites its primary sources inline, and every statistic carries a link to where it came from.

3. Freshness

Live checks reflect the moment they run; cached results are clearly the result of a prior check and can be re-run. Articles and glossary terms carry a visible "Last updated" date and are refreshed when the underlying facts change.

4. Estimates are labelled as estimates

Some outputs — most notably domain valuation — are estimates, not statements of fact. We label them as estimates and explain how they are derived. We never present an estimate as a guarantee.

5. Corrections

Found something wrong? Email info@nameprof.com and we'll review and correct it. See our editorial policy for how content is produced and reviewed.