diff --git a/README.md b/README.md
index 7646352..5a26036 100644
--- a/README.md
+++ b/README.md
@@ -145,7 +145,7 @@ struct MyApp: App {
 Signoz.start(serviceName: "my-app") { config in
     config.endpoint = "localhost:4317"  // default
     config.environment = "production"                 // deployment.environment
-    config.hostName = .auto                             // host.name (system hostname)
+    config.hostName = .auto                             // host.name (short system hostname, domain suffix stripped)
     config.hostName = .custom("web-01")                 // host.name (explicit value)
     // config.hostName = .none                           // omit host.name (default)
     config.serviceVersion = "1.0.0"
@@ -274,7 +274,7 @@ let attrs: [String: AttributeValue] = [
 | `serviceName` | `String` | *required* | Service name (`service.name`) |
 | `serviceVersion` | `String` | `""` | Service version (`service.version`) |
 | `environment` | `String` | `""` | Deployment environment (`deployment.environment`) |
-| `hostName` | `.none` \| `.auto` \| `.custom(String)` | `.none` | Host name (`host.name`). `.none` omits the attribute, `.auto` uses the system hostname, `.custom("...")` uses an explicit value. |
+| `hostName` | `.none` \| `.auto` \| `.custom(String)` | `.none` | Host name (`host.name`). `.none` omits the attribute, `.auto` uses the short system hostname (strips domain suffixes like `.local`), `.custom("...")` uses an explicit value. |
 | `resourceAttributes` | `[String: AttributeValue]` | `[:]` | Extra resource attributes |
 | `headers` | `[String: String]` | `[:]` | gRPC metadata headers |
 | `transportSecurity` | `.plaintext` \| `.tls` | `.plaintext` | Transport security mode |
diff --git a/Sources/SignozSwift/Configuration.swift b/Sources/SignozSwift/Configuration.swift
index 0aa13bd..d52881f 100644
--- a/Sources/SignozSwift/Configuration.swift
+++ b/Sources/SignozSwift/Configuration.swift
@@ -24,7 +24,7 @@ public struct Configuration: Sendable {
 
     /// Host name strategy for the `host.name` resource attribute.
     /// - `.none` — attribute is omitted (default).
-    /// - `.auto` — uses the system hostname at runtime.
+    /// - `.auto` — uses the short system hostname at runtime (strips domain suffixes like `.local`, `.localdomain`).
     /// - `.custom("value")` — uses the provided string.
     public var hostName: HostName = .none
 
@@ -67,7 +67,7 @@ public struct Configuration: Sendable {
     public enum HostName: Sendable, Equatable, ExpressibleByStringLiteral {
         /// Do not include the `host.name` resource attribute.
         case none
-        /// Use the system hostname (`ProcessInfo.processInfo.hostName`).
+        /// Use the short system hostname (domain suffixes like `.local` stripped).
         case auto
         /// Use a custom hostname value.
         case custom(String)
diff --git a/Sources/SignozSwift/Signoz.swift b/Sources/SignozSwift/Signoz.swift
index b87578d..cffe1db 100644
--- a/Sources/SignozSwift/Signoz.swift
+++ b/Sources/SignozSwift/Signoz.swift
@@ -165,7 +165,9 @@ public enum Signoz {
         case .none:
             break
         case .auto:
-            attrs["host.name"] = .string(ProcessInfo.processInfo.hostName)
+            let raw = ProcessInfo.processInfo.hostName
+            let short = raw.split(separator: ".", maxSplits: 1).first.map(String.init) ?? raw
+            attrs["host.name"] = .string(short)
         case .custom(let value):
             attrs["host.name"] = .string(value)
         }