DOMAINS & MONITORING

Understand domain alerts and prevent incidents.

DNS, HTTPS, TLS certificates, availability and email: practical guides to detect issues and respond in the right order.

ESSENTIAL GUIDES

Start with the right diagnosis

MONITORING

Sort alerts according to their impact and intervene in the right order.

DNS

The role of A, AAAA, CNAME, MX and TXT records, plus common mistakes.

HTTPS

Check expected content to avoid false positives.

TLS

Anticipate expiration and check what the certificate actually protects.

E-MAIL

Understand the mechanisms that authenticate email sent from a domain.

DIAGNOSIS

Locate a failure methodically before changing the configuration.

TUTORIAL

Define a baseline and detect significant regressions.

TECHATELIER PROTECT

Track DNS, HTTPS, TLS and email risks from a clear dashboard.