Domain A · External perimeter

Automated coverage

Behind each external-perimeter check group (A01–A12) runs a set of automated probes: DNS and mail records, TLS and cipher suites, security headers, exposed files and open ports, and software-version matching. This page shows what the automated layer actually tests. Application, code, infrastructure, data and AI/Agent domains, and levels V2–V4, add expert scenarios — see the methodology.

Automated probes per perimeter group

A group passes only when every applicable probe passes or is formally not applicable. The figures below are the size of the automated signature set — not a score, and not a per-product test count.

A01

TLS & certificate

Protocol versions, cipher suites, chain, expiry, key strength.

≈170 probes, incl. 122 cipher-suite tests · automated

A02

HTTPS & HSTS

HTTP→HTTPS redirect, HSTS lifetime, subdomains, preload.

7 probes · automated

A03

DNS & zone hygiene

DNSSEC, CAA, nameservers, AXFR, dangling records.

30 probes · automated

A04

Email authentication

SPF, DKIM, DMARC, MTA-STS, TLS-RPT.

40 probes · automated

A05

Security headers

CSP, frame protection, nosniff, referrer, permissions.

45 probes · automated

A06

Exposed services & ports

Listening services and management ports on the perimeter.

≈1,000 port probes · automated

A07

Known-vulnerable versions

Detected components matched to CVE/NVD and CISA KEV.

104 version signatures · automated

A08

Admin & default creds

Reachable admin panels; default or vendor credentials.

34 probes · automated + review

A09

Information disclosure

Banners, listings, VCS folders, env files, backups, traces.

≈5,100 path signatures, most informational · automated

A10

Cookie attributes

Secure, HttpOnly, SameSite, scope and lifetime.

20 probes · automated

A11

Redirects & mixed content

Open redirects, downgrade paths, mixed content.

17 probes · automated

A12

Disclosure channel

Published, monitored way to report a vulnerability.

1 probe · automated

Signature sources

The automated layer is built from recognised, openly published data sets, refreshed by edition. Each probe maps to exactly one perimeter check group.

SecListsnmap-servicesIANA TLS registryCVE / NVDCISA KEVRFC baselines

Signature-set size is not a test count. Most A09 path signatures map the surface and are informational; only a minority indicate real exposure.

What the automation is — and is not

Automation screens the external perimeter and feeds the pass/fail result of each perimeter group, with evidence stored for every check. It does not replace the expert scenarios required for the application, code, infrastructure, data and AI/Agent domains, or for levels V2–V4.

The Trust Page for a certificate lists the components actually assessed, the methods used, the results and the limitations — never vulnerability details.