diff --git a/docs/en/farm-config-json.md b/docs/en/farm-config-json.md
index 6b1afa2..090bb73 100644
--- a/docs/en/farm-config-json.md
+++ b/docs/en/farm-config-json.md
@@ -51,6 +51,11 @@ Git repository format: `https://<token>@github.com/<repositoryPath>.git`.
 - *Optional*
 > Maximum number of running instances. No limit by default. When limit is reached, new builds will be rejected.
 
+### `instanceHashLength`
+- *Number*
+- *Optional*
+> Maximum length of instance hash. If set, the hash is truncated to this length. Minimum value is 4; when not set, no truncation is applied.
+
 ### `defaultBranch`
 - *String*
 - *Required*
diff --git a/docs/ru/farm-config-json.md b/docs/ru/farm-config-json.md
index 0f623b0..ddb30db 100644
--- a/docs/ru/farm-config-json.md
+++ b/docs/ru/farm-config-json.md
@@ -51,6 +51,11 @@
 - *Optional*
 > Максимальное количество запущенных инстансов. По умолчанию без ограничения. Когда лимит достигнут, новые сборки будут отклонены.
 
+### `instanceHashLength`
+- *Number*
+- *Optional*
+> Максимальная длина хэша инстанса. Если задано, хэш обрезается до этой длины. Минимальное значение — 4; если не задано, обрезка не применяется.
+
 ### `defaultBranch`
 - *String*
 - *Required*
diff --git a/src/server/utils/common.ts b/src/server/utils/common.ts
index 3bcb69b..33de362 100644
--- a/src/server/utils/common.ts
+++ b/src/server/utils/common.ts
@@ -15,6 +15,8 @@ export function getProviderConfig() {
     return envConfig.farmProvider;
 }
 
+const INSTANCE_HASH_LENGTH = getGlobalFarmConfig().instanceHashLength;
+
 export function generateInstanceHash(
     // required to ensure passing all props
     info: Required<Pick<Instance, 'branch' | 'instanceConfigName' | 'vcs' | 'project'>> & {
@@ -47,7 +49,13 @@ export function generateInstanceHash(
         runEnvVariables: additionalRunEnvVariables,
     });
     // replace first number with alphabet symbol for support most domain's standard implementation
-    return hash.replace(/^[0-9]{1}/, 'x');
+    let result = hash.replace(/^[0-9]{1}/, 'x');
+
+    if (INSTANCE_HASH_LENGTH) {
+        result = result.slice(0, Math.max(INSTANCE_HASH_LENGTH, 4));
+    }
+
+    return result;
 }
 
 /** @deprecated */
diff --git a/src/server/utils/instance/index.ts b/src/server/utils/instance/index.ts
index 897268f..03c4c70 100644
--- a/src/server/utils/instance/index.ts
+++ b/src/server/utils/instance/index.ts
@@ -87,7 +87,6 @@ const restartInstance = async (instance: Instance) => {
 
 /**
  * Get all projects with instances
- *
  * @returns Array of projects with instances
  */
 const getProjectsWithInstances = async () => {
diff --git a/src/shared/common.ts b/src/shared/common.ts
index c84a811..90b572e 100644
--- a/src/shared/common.ts
+++ b/src/shared/common.ts
@@ -76,6 +76,7 @@ export interface FarmConfigBase {
     urlTemplate?: string;
     defaultBranch?: string;
     vcs?: string;
+    instanceHashLength?: number;
 
     vcsCredentials?: {
         [key: string]: VcsCredentialsConfig | undefined;