# GTS Root R4 root certificate (Google Trust Services, SHA-256 349DFA40)

> GTS Root R4 is a root CA certificate operated by Google Trust Services (ECDSA P-384, valid until 2036-06-22, SHA-256 349DFA40). As of the latest CCADB data it is trusted for TLS server authentication by 4 of 4 major root stores: Chrome, Mozilla, Apple, Microsoft.

Source: https://ssl.sh/roots/google-trust-services-gts-root-r4/
Last updated: 2026-11-10

GTS Root R4 is a root CA certificate operated by Google Trust Services (ECDSA P-384, valid until 2036-06-22, SHA-256 349DFA40). As of the latest CCADB data it is trusted for TLS server authentication by 4 of 4 major root stores: Chrome, Mozilla, Apple, Microsoft.

| Field | Value |
|---|---|
| CA owner | Google Trust Services |
| Subject | CN=GTS Root R4,O=Google Trust Services LLC,C=US |
| SHA-256 | 349DFA4058C5E263123B398AE795573C4E1313C83FE68F93556CD5E8031B3C7D |
| SPKI SHA-256 | 9847E5653E5E9E847516E5CB818606AA7544A19BE67FD7366D506988E8D84347 |
| Valid from | 2016-06-22 |
| Expires | 2036-06-22 |
| Key | ECDSA P-384 |
| Signature algorithm | ecdsa-with-SHA384 |
| Serial number | 203E5C068EF631A9C72905052 |
| SHA-1 (Windows thumbprint) | 77D30367B5E00C15F60C3861DF7CE13B92464D47 |

## Root store status

| Root store | Status | Trusted for TLS | Distrust for TLS after | Details |
|---|---|---|---|---|
| Chrome | Included | Yes | - | - |
| Mozilla | Included | Yes | - | Trust bits: Websites; EV policy OIDs: not EV-enabled; First included in: NSS 3.74 / Firefox 97; Inclusion bug: #1675821 |
| Apple | Included | Yes | - | Trust bits: serverAuth, clientAuth |
| Microsoft | Included | Yes | - | Trusted EKUs: Server Authentication, Client Authentication, Secure Email |

The CCADB lists no EV policy OID for GTS Root R4.

## Intermediate CAs issued by this root

The CCADB lists 10 intermediate CA certificates signed directly by GTS Root R4: 5 currently valid, 0 expired and 5 revoked (revoked includes those whose parent was revoked).

| Intermediate | Operated by | Expires | Status | SHA-256 |
|---|---|---|---|---|
| WE4 | Google Trust Services LLC | 2029-02-20 | Valid | D0C97E56C7B0BA812D944AD771F7799B5D4144A2327A4E416554F7EE2AA0AEAE |
| WE3 | Google Trust Services LLC | 2029-02-20 | Valid | 9F819A4C876E12DC84E6FE0E37C1A69B137094B453FA98449398F4B71F4D0092 |
| WE2 | Google Trust Services LLC | 2029-02-20 | Valid | 9C3F2FD11C57D7C649AD5A0932C0F0D29756F6A0A1C74C43E1E89A62D64CD320 |
| AE1 | Google Trust Services LLC | 2029-02-20 | Valid | 812C212E9E45DC5005C7F47411183F5FB2FF1BAEE184D3354B2E93D78C280164 |
| WE1 | Google Trust Services LLC | 2029-02-20 | Valid | 1DFC1605FBAD358D8BC844F76D15203FAC9CA5C1A79FD4857FFAF2864FBEBF96 |
| GTS CA 2P2 | Google Trust Services LLC | 2027-09-30 | Revoked | 3647AAC2B282BC941FE7A642E3DCB99CFC5B3C6DCE944A1E96F8028E89B7B090 |
| GTS CA 2A1 | Google Trust Services LLC | 2025-09-30 | Revoked | 11C697878732056DE17C1DA134E9D2B6D23CF1DE95B3FB0A4D18A517AB63230A |
| GTS Y4 | Google Trust Services LLC | 2030-01-30 | Revoked | 28676200C415D82D10251F527A773E7E7AC9902232FABA43E1A68C5AD3B7D87D |
| GTS Y4 | Google Trust Services LLC | 2028-11-01 | Revoked | 55BAB3C516D50E7F35F86EA948A7CCDF7D5EE680EAA9AB49FA258A614CD1FADE |
| GTS X4 | Google Trust Services LLC | 2026-06-22 | Revoked | F5ABD3F1C6667C370E24D737EF891C9D64CEB66AC0DE661D425ED365BB961091 |

## Cross-signed versions

1 certificate(s) in the CCADB have the same subject and public key as GTS Root R4 but a different issuer. A server can send one of them so that clients which trust the issuing root, but not GTS Root R4, can still build a chain.

| Signed by | CA owner | Expires | Status | SHA-256 |
|---|---|---|---|---|
| GlobalSign Root CA | GlobalSign nv-sa | 2028-01-28 | Valid | 76B27B80A58027DC3CF1DA68DAC17010ED93997D0B603E2FADBE85012493B5A7 |

## What happens when it expires

GTS Root R4 is valid until 2036-06-22, about 9.6 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 GTS Root R4 trusted by Chrome, Firefox, Safari and Windows?**

Yes. As of 2026-11-10, Chrome, Mozilla (Firefox), Apple (Safari) and Microsoft (Windows) all trust it for TLS server authentication.

**When does GTS Root R4 expire?**

On 2036-06-22, about 9.6 years after the 2026-11-10 data snapshot.

**How many intermediate certificates has GTS Root R4 issued?**

The CCADB lists 10: 5 valid, 0 expired and 5 revoked. The newest valid one is WE4, valid until 2029-02-20.

**Is GTS Root R4 cross-signed?**

Yes. The CCADB has 1 cross-certificate(s) with its subject and key, signed by GlobalSign Root CA; 1 of them are still valid.

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).