# ComSign Global Root CA root certificate (ComSign)

> ComSign Global Root CA is a root CA certificate operated by ComSign (RSA 4096, valid until 2036-07-16, SHA-256 2605875A). As of the latest CCADB data it is trusted for TLS server authentication by 1 of 4 major root stores: Microsoft.

Source: https://ssl.sh/roots/comsign-global-root-ca/
Last updated: 2026-11-10

ComSign Global Root CA is a root CA certificate operated by ComSign (RSA 4096, valid until 2036-07-16, SHA-256 2605875A). As of the latest CCADB data it is trusted for TLS server authentication by 1 of 4 major root stores: Microsoft.

| Field | Value |
|---|---|
| CA owner | ComSign |
| Subject | C=IL,O=ComSign Ltd.,CN=ComSign Global Root CA |
| SHA-256 | 2605875AFCC176B2D66DD66A995D7F8D5EBB86CE120D0E7E9E7C6EF294A27D4C |
| SPKI SHA-256 | C06C872FC2D0AC08D78D421981FBDA4E35500D0946F79894EDD21AC29DEC0719 |
| Valid from | 2011-07-18 |
| Expires | 2036-07-16 |
| Key | RSA 4096 |
| Signature algorithm | sha256WithRSAEncryption |
| Serial number | 8F617115BA7958178C7D113AACD6DBAE |
| SHA-1 (Windows thumbprint) | AE3B31BF8FD891079CF1DF34CBCE6E70D37FB5B0 |

## Root store status

| Root store | Status | Trusted for TLS | Distrust for TLS after | Details |
|---|---|---|---|---|
| Chrome | Not included | No | - | - |
| Mozilla | Not included | No | - | - |
| Apple | Blocked | No | - | - |
| Microsoft | Included | Yes | - | Trusted EKUs: Server Authentication, Client Authentication, OCSP Signing, Secure Email, Time Stamping; Not-before cutoff: 2026-05-19 (OCSP Signing, Secure Email) |

The CCADB lists no EV policy OID for ComSign Global Root CA.

## Intermediate CAs issued by this root

The CCADB lists 6 intermediate CA certificates signed directly by ComSign Global Root CA: 6 currently valid, 0 expired and 0 revoked (revoked includes those whose parent was revoked).

| Intermediate | Operated by | Expires | Status | SHA-256 |
|---|---|---|---|---|
| ComSign Professionals CA | ComSign | 2034-05-08 | Valid | D61CD2C0287303FC2AADB4B23D4B52B5DFB45FE01B3F5E7A3D206E43A991B417 |
| ComSign Corporations CA | ComSign | 2034-05-08 | Valid | 7A9B84BCB0FE50A966CB9D77C877DD6C6B2CBC12088A6E127210465A4F273306 |
| ComSign IDF CA | ComSign | 2034-05-08 | Valid | 0150B74BC31E4BDC0C885092999755EA9D170E235807C8B2F0A077396F4572D6 |
| Comsign eIDAS CA | ComSign | 2031-07-12 | Valid | 07DD4ED6DE14EB1B168C8883A579AF8D0DB7F3C2E2A9690E8B2679D0FD8D678A |
| ComSign Organizational CA | ComSign | 2028-11-07 | Valid | 7C50EAAF7E06D11499907CDCB47E8E256C81D388CD0E1D93B92B558E0B971E50 |
| ComSign ISA Global CA | ComSign | 2028-11-07 | Valid | 0AF6A3420743DB058B24140328018CC6B3E226C7696E47D0C14066D51CA725EF |

## Cross-signed versions

No certificate in the CCADB has the same subject and public key as ComSign Global Root CA with a different issuer, so a client has to carry ComSign Global Root CA itself in its root store to trust it.


## What happens when it expires

ComSign Global Root CA is valid until 2036-07-16, about 9.7 years after this data snapshot (2026-11-10). From that day, browsers and operating systems that check trust-anchor expiry stop accepting chains that end at this root, so any certificate that can only chain to it fails validation. Android is a known exception: it does not enforce the expiry date of trust anchors.

## FAQ

**Is ComSign Global Root CA trusted by Chrome, Firefox, Safari and Windows?**

As of 2026-11-10, Microsoft trust it for TLS server authentication; Chrome, Mozilla, Apple do not.

**When does ComSign Global Root CA expire?**

On 2036-07-16, about 9.7 years after the 2026-11-10 data snapshot.

**How many intermediate certificates has ComSign Global Root CA issued?**

The CCADB lists 6: 6 valid, 0 expired and 0 revoked. The newest valid one is ComSign Professionals CA, valid until 2034-05-08.

**Is ComSign Global Root CA cross-signed?**

No. The CCADB has no certificate with the same subject and public key signed by another CA.

Sources: CCADB TLS Server Authentication report, All Included Root Certificate Trust Bit Settings, All Certificate Information (V5), the per-store TLS reports and Mozilla's Included CA Certificate Report (ccadb.org/resources).