Monitoring pass · public sample

Domain Certificate Watch

A 30-day certificate-transparency watch for up to five root domains, delivered as a timestamped alert ledger and a final CSV. Fixed pass, no auto-renewal.

Sample only. The planned $29 30-day pass is not available for purchase yet. It watches public certificate-transparency logs and reports newly observed certificates; it is not a security guarantee.

Download sample-alert.csv

No contact details, checkout, or payment. Measurement retains a random per-tab ID, IP address, browser user agent, referrer, page, and classification so internal and automated traffic can be excluded.

Representative sample excerpt

New leaf certificate from an unexpected issuer

A new leaf certificate for example.com was observed in a public CT log, issued by an authority not previously seen for this domain. Every alert links directly to the CT-log entry for review.

Wildcard certificate issuance

A wildcard certificate for *.example.com was observed. Selected ledger rows:

observed_at,domain,issuer,serial
2026-04-02T10:14Z,example.com,Sample CA A,0A1B2C
2026-04-05T22:41Z,*.example.com,Sample CA B,3D4E5F

Representative synthetic excerpt. A delivered pass records every observed event with direct CT-log links and states coverage limits.