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Notes on domains and trust

Guides and explainers on registration data, DNS, certificates and spotting fraud.

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Showing 5 of 5 articles

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Guides

What a domain change tells you before an invoice does

New name servers, a fresh certificate or a different registrar are often the first sign that a supplier's domain has changed hands.

5 min read
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Explainers

Reading RDAP without the jargon

RDAP replaced WHOIS at most registries. Here is what each field means, and which ones are worth your attention.

4 min read
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Security

SPF and DMARC in plain words

Two DNS records decide whether someone else can send email as your domain. Most throwaway domains publish neither.

6 min read
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Explainers

Certificates are public records

Every TLS certificate is logged in public. That makes a new certificate one of the earliest signs of a new site.

3 min read
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Product

Monitoring your first domain

Add a domain to your watchlist with just an email address, and we will tell you when something about it changes.

2 min read