Web tools for administrators, developers and website owners

Check your domain’s email and DNS settings

NetTools.fi brings together practical tools for checking domains, DNS, email authentication, TLS/SSL certificates and website security.

MX SPF DMARC DKIM TLS/SSL HTTP headers

Tools

All tools

Choose a single check tool or use the email settings check for a complete report.

Email settings check Check MX, SPF, DMARC and DKIM settings in one scored report.

DNS lookup Check A, AAAA, MX, NS, TXT, SOA and CAA records for a domain.

DNSSEC check Check a domain’s DNSSEC status, DS records, DNSKEY records and validation result.

CAA check Check a domain’s CAA records and allowed certificate authorities.

SPF check Check the domain’s SPF record and authorized email senders.

DMARC check Check the DMARC policy, reporting addresses and subdomain settings.

MTA-STS check Check the domain’s MTA-STS TXT record and HTTPS policy.

TLS-RPT check Check the domain’s TLS-RPT reporting record and rua addresses.

DKIM check Check a DKIM selector and public DKIM key from DNS.

TLS/SSL certificate check Check certificate validity, issuer, names and TLS connection details.

HTTP security headers Check the most important HTTP security headers for a website.