diff --git a/checker/evaluate.go b/checker/evaluate.go
index 8cef1aa..f64b2f1 100644
--- a/checker/evaluate.go
+++ b/checker/evaluate.go
@@ -23,7 +23,6 @@ package checker
 
 import (
 	"fmt"
-	"strings"
 	"time"
 )
 
@@ -53,48 +52,43 @@ type Metric struct {
 	Timestamp time.Time         `json:"timestamp"`
 }
 
-// EvaluateResult holds the evaluation outcome.
+// EvaluateResult holds the evaluation outcome for a single target.
 type EvaluateResult struct {
+	Address string `json:"address"`
 	Status  int    `json:"status"`
 	Message string `json:"message"`
 	Code    string `json:"code"`
 }
 
 const (
-	StatusOK   = 1
-	StatusWarn = 3
-	StatusCrit = 4
+	StatusUnknown = 0
+	StatusOK      = 1
+	StatusWarn    = 3
+	StatusCrit    = 4
 )
 
-// Evaluate checks the ping data against the given thresholds.
-// StatusUnknown indicates the check could not be performed.
-const StatusUnknown = 0
-
-func Evaluate(data *PingData, warningRTT, criticalRTT, warningPacketLoss, criticalPacketLoss float64) EvaluateResult {
+// Evaluate checks the ping data against the given thresholds and returns one
+// result per target.
+func Evaluate(data *PingData, warningRTT, criticalRTT, warningPacketLoss, criticalPacketLoss float64) []EvaluateResult {
 	if len(data.Targets) == 0 {
-		return EvaluateResult{
-			Status:  StatusUnknown,
-			Message: "No targets to ping",
-			Code:    "ping_no_targets",
-		}
+		return nil
 	}
 
-	overallStatus := StatusOK
-	var summaryParts []string
-
+	results := make([]EvaluateResult, 0, len(data.Targets))
 	for _, target := range data.Targets {
+		status := StatusOK
 		if target.PacketLoss >= criticalPacketLoss || target.RTTAvg >= criticalRTT {
-			overallStatus = StatusCrit
-		} else if (target.PacketLoss >= warningPacketLoss || target.RTTAvg >= warningRTT) && overallStatus < StatusWarn {
-			overallStatus = StatusWarn
+			status = StatusCrit
+		} else if target.PacketLoss >= warningPacketLoss || target.RTTAvg >= warningRTT {
+			status = StatusWarn
 		}
 
-		summaryParts = append(summaryParts, fmt.Sprintf("%s: %.1fms avg, %.0f%% loss", target.Address, target.RTTAvg, target.PacketLoss))
-	}
-
-	return EvaluateResult{
-		Status:  overallStatus,
-		Message: strings.Join(summaryParts, " | "),
-		Code:    "ping_result",
+		results = append(results, EvaluateResult{
+			Address: target.Address,
+			Status:  status,
+			Message: fmt.Sprintf("%.1fms avg, %.0f%% loss", target.RTTAvg, target.PacketLoss),
+			Code:    "ping_result",
+		})
 	}
+	return results
 }
diff --git a/checker/rule.go b/checker/rule.go
index 5932cb1..f54d76a 100644
--- a/checker/rule.go
+++ b/checker/rule.go
@@ -106,14 +106,14 @@ func (r *pingRule) ValidateOptions(opts sdk.CheckerOptions) error {
 	return nil
 }
 
-func (r *pingRule) Evaluate(ctx context.Context, obs sdk.ObservationGetter, opts sdk.CheckerOptions) sdk.CheckState {
+func (r *pingRule) Evaluate(ctx context.Context, obs sdk.ObservationGetter, opts sdk.CheckerOptions) []sdk.CheckState {
 	var data PingData
 	if err := obs.Get(ctx, ObservationKeyPing, &data); err != nil {
-		return sdk.CheckState{
+		return []sdk.CheckState{{
 			Status:  sdk.StatusError,
 			Message: fmt.Sprintf("Failed to get ping data: %v", err),
 			Code:    "ping_error",
-		}
+		}}
 	}
 
 	warningRTT := sdk.GetFloatOption(opts, "warningRTT", 100)
@@ -121,26 +121,44 @@ func (r *pingRule) Evaluate(ctx context.Context, obs sdk.ObservationGetter, opts
 	warningPacketLoss := sdk.GetFloatOption(opts, "warningPacketLoss", 10)
 	criticalPacketLoss := sdk.GetFloatOption(opts, "criticalPacketLoss", 50)
 
-	result := Evaluate(&data, warningRTT, criticalRTT, warningPacketLoss, criticalPacketLoss)
-
-	var status sdk.Status
-	switch result.Status {
-	case StatusOK:
-		status = sdk.StatusOK
-	case StatusWarn:
-		status = sdk.StatusWarn
-	case StatusCrit:
-		status = sdk.StatusCrit
-	default:
-		status = sdk.StatusUnknown
+	results := Evaluate(&data, warningRTT, criticalRTT, warningPacketLoss, criticalPacketLoss)
+	if len(results) == 0 {
+		return []sdk.CheckState{{
+			Status:  sdk.StatusInfo,
+			Message: "No targets to ping",
+			Code:    "ping_no_targets",
+		}}
 	}
 
-	return sdk.CheckState{
-		Status:  status,
-		Message: result.Message,
-		Code:    result.Code,
-		Meta: map[string]any{
-			"targets": data.Targets,
-		},
+	targetByAddr := make(map[string]PingTargetResult, len(data.Targets))
+	for _, t := range data.Targets {
+		targetByAddr[t.Address] = t
 	}
+
+	out := make([]sdk.CheckState, 0, len(results))
+	for _, r := range results {
+		var status sdk.Status
+		switch r.Status {
+		case StatusOK:
+			status = sdk.StatusOK
+		case StatusWarn:
+			status = sdk.StatusWarn
+		case StatusCrit:
+			status = sdk.StatusCrit
+		default:
+			status = sdk.StatusUnknown
+		}
+
+		state := sdk.CheckState{
+			Status:  status,
+			Subject: r.Address,
+			Message: r.Message,
+			Code:    r.Code,
+		}
+		if t, ok := targetByAddr[r.Address]; ok {
+			state.Meta = map[string]any{"target": t}
+		}
+		out = append(out, state)
+	}
+	return out
 }
diff --git a/go.mod b/go.mod
index 02a7c39..8e1e592 100644
--- a/go.mod
+++ b/go.mod
@@ -3,12 +3,12 @@ module git.happydns.org/checker-ping
 go 1.25.0
 
 require (
+	git.happydns.org/checker-sdk-go v1.2.0
 	git.happydns.org/happyDomain v0.7.0
 	github.com/prometheus-community/pro-bing v0.8.0
 )
 
 require (
-	git.happydns.org/checker-sdk-go v0.0.1
 	github.com/bytedance/gopkg v0.1.3 // indirect
 	github.com/bytedance/sonic v1.15.0 // indirect
 	github.com/bytedance/sonic/loader v0.5.0 // indirect
diff --git a/go.sum b/go.sum
index 4a5626b..630d66c 100644
--- a/go.sum
+++ b/go.sum
@@ -1,5 +1,5 @@
-git.happydns.org/checker-sdk-go v0.0.1 h1:4RxCJr73HWKxjOyU/6NJMO8lXJmH0gMLA68EzTqLbQI=
-git.happydns.org/checker-sdk-go v0.0.1/go.mod h1:aNAcfYFfbhvH9kJhE0Njp5GX0dQbxdRB0rJ0KvSC5nI=
+git.happydns.org/checker-sdk-go v1.2.0 h1:v4MpKAz0W3PwP+bxx3pya8w893sVH5xTD1of1cc0TV8=
+git.happydns.org/checker-sdk-go v1.2.0/go.mod h1:aNAcfYFfbhvH9kJhE0Njp5GX0dQbxdRB0rJ0KvSC5nI=
 git.happydns.org/happyDomain v0.7.0 h1:NV82/NbcSeRm0+IUZqaK3Vu9Ovl5+vv4AigUJZMdwws=
 git.happydns.org/happyDomain v0.7.0/go.mod h1:5tgkmqFE65kK359rY49V++49wgZ0gco+Gh9X6tbL+bY=
 github.com/bytedance/gopkg v0.1.3 h1:TPBSwH8RsouGCBcMBktLt1AymVo2TVsBVCY4b6TnZ/M=