diff --git a/plugins/inputs/http_response/http_response.go b/plugins/inputs/http_response/http_response.go
index 5c9521404..b92aa1947 100644
--- a/plugins/inputs/http_response/http_response.go
+++ b/plugins/inputs/http_response/http_response.go
@@ -18,6 +18,7 @@ import (
 
 	"github.com/influxdata/telegraf"
 	"github.com/influxdata/telegraf/config"
+	"github.com/influxdata/telegraf/internal"
 	"github.com/influxdata/telegraf/plugins/common/tls"
 	"github.com/influxdata/telegraf/plugins/inputs"
 )
@@ -198,6 +199,10 @@ func (h *HTTPResponse) httpGather(u string) (map[string]interface{}, map[string]
 		return nil, nil, err
 	}
 
+	if _, uaPresent := h.Headers["User-Agent"]; !uaPresent {
+		request.Header.Set("User-Agent", internal.ProductToken())
+	}
+
 	if h.BearerToken != "" {
 		token, err := os.ReadFile(h.BearerToken)
 		if err != nil {
diff --git a/plugins/inputs/http_response/http_response_test.go b/plugins/inputs/http_response/http_response_test.go
index 74615ed58..2bc1279a4 100644
--- a/plugins/inputs/http_response/http_response_test.go
+++ b/plugins/inputs/http_response/http_response_test.go
@@ -19,6 +19,7 @@ import (
 
 	"github.com/influxdata/telegraf"
 	"github.com/influxdata/telegraf/config"
+	"github.com/influxdata/telegraf/internal"
 	"github.com/influxdata/telegraf/plugins/common/tls"
 	"github.com/influxdata/telegraf/testutil"
 )
@@ -169,8 +170,10 @@ func checkOutput(
 func TestHeaders(t *testing.T) {
 	ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
 		cHeader := r.Header.Get("Content-Type")
+		uaHeader := r.Header.Get("User-Agent")
 		require.Equal(t, "Hello", r.Host)
 		require.Equal(t, "application/json", cHeader)
+		require.Equal(t, internal.ProductToken(), uaHeader)
 		w.WriteHeader(http.StatusOK)
 	}))
 	defer ts.Close()