# První certifikační autorita (I.CA): root certificates and root store status

> První certifikační autorita (I.CA) operates 1 root certificate(s) trusted for TLS by at least one major root store (CCADB owner: První certifikační autorita, a.s.; country: CZ). See fingerprints, expiry and Chrome, Mozilla, Apple and Microsoft status.

Source: https://ssl.sh/cas/ica-cz/
Last updated: 2026-11-10

První certifikační autorita (I.CA) operates 1 root certificate(s) trusted for TLS by at least one major root store (CCADB owner: První certifikační autorita, a.s.; country: CZ). See fingerprints, expiry and Chrome, Mozilla, Apple and Microsoft status.


## Root certificates (CCADB)

První certifikační autorita (I.CA) has 1 root certificate(s) in the CCADB TLS report. Together they have signed 2 intermediate CA certificates, 2 of them still valid.

| Root certificate | Key | Expires | Chrome | Mozilla | Apple | Microsoft | Intermediates | SHA-256 |
|---|---|---|---|---|---|---|---|---|
| I.CA TLS Root CA/RSA 05/2022 | RSA 4096 | 2047-05-03 | Not included | Not included | Not included | Included | 2 | F9A17A00E5C294BA9614A715819AF57F3FD48CC413453FBB8A5FC7E97964E2BC |

## CAA records

The CCADB lists no recognized CAA domain for the valid intermediates of První certifikační autorita (I.CA). Section 4.2 of a CA's CP/CPS has to state the issuer domain names it accepts in CAA records, so check that document.

## Audits

Audit data the CCADB records for the TLS roots of První certifikační autorita (I.CA). Auditor(s): TayllorCox PCEB. The most recent audit period ended on 2026-05-09.

- Standard audit: ETSI EN 319 411 2025-05-10 – 2026-05-09 (https://pceb.tayllorcox.cz/files/PCEB-N_260702_AAL_Standard_Audit_E_V3.5_signed.pdf)
- Network security: ETSI EN 319 411 2025-05-10 – 2026-05-09 (https://pceb.tayllorcox.cz/files/PCEB-N_260702_AAL_Standard_Audit_E_V3.5_signed.pdf)
- TLS Baseline Requirements: ETSI EN 319 411 2025-05-10 – 2026-05-09 (https://pceb.tayllorcox.cz/files/PCEB-N_260703_AAL_TLS-BR_Audit_E_V3.5_signed.pdf)
- TLS EV Guidelines: ETSI EN 319 411 2025-05-10 – 2026-05-09 (https://pceb.tayllorcox.cz/files/PCEB-N_260704_AAL_TLS-EV_Audit_E_V3.5_signed.pdf)

## CP/CPS documents

Certificate Policy and Certification Practice Statement links that První certifikační autorita (I.CA) has disclosed in the CCADB for its TLS roots, with effective dates:

- CPS: https://www.ica.cz/sites/default/files/docs/2026/04/cps_rsa_1v75_en.pdf
- CP: https://www.ica.cz/sites/default/files/docs/2026/09/cp_root_rsa_tls_1v005_en.pdf
- CP: https://www.ica.cz/sites/default/files/docs/2026/04/cp_root_rsa_tls_1v004_en.pdf

## Report a certificate problem

To report a mis-issued certificate, a compromised private key or other abuse, use the channels První certifikační autorita (I.CA) lists in the CCADB (replace [at] and [dot] in addresses):

- certproblem[at]ica[dot]cz

## Incident reports

CAs in Mozilla's root program file compliance incident reports in Mozilla's Bugzilla (product CA Program, component CA Certificate Compliance). This search lists the bugs whose title contains the words “I.CA”: https://bugzilla.mozilla.org/buglist.cgi?query_format=advanced&product=CA+Program&component=CA+Certificate+Compliance&short_desc_type=allwords&short_desc=I.CA&order=changeddate+DESC

## FAQ

**What CAA record allows První certifikační autorita (I.CA) to issue certificates?**

The CCADB lists no recognized CAA domain for První certifikační autorita (I.CA); check section 4.2 of its CP/CPS.

**Who audits První certifikační autorita (I.CA)?**

TayllorCox PCEB, according to the CCADB. The latest TLS Baseline Requirements audit (ETSI EN 319 411) covers 2025-05-10 to 2026-05-09; the statement is dated 2026-07-23.

**How do I report a problem certificate to První certifikační autorita (I.CA)?**

Use the channel(s) listed in the CCADB: certproblem[at]ica[dot]cz.

**How many root certificates does První certifikační autorita (I.CA) have?**

1 in the CCADB TLS report. Trusted for TLS: Chrome 0, Mozilla 0, Apple 0, Microsoft 1. They have signed 2 intermediates, 2 of them still valid.

Sources: CCADB All Certificate Information (V5), List of CAA Identifiers, List of CA problem reporting mechanisms and TLS Server Authentication report (ccadb.org/resources).