diff --git a/dist/ttfb-go b/dist/ttfb-go
index 79abe67..02871b0 100755
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diff --git a/dist/ttfb-go_darwin_amd64 b/dist/ttfb-go_darwin_amd64
index e79dc61..40010fc 100755
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diff --git a/dist/ttfb-go_darwin_arm64 b/dist/ttfb-go_darwin_arm64
index ac4ba57..be2f1f5 100755
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diff --git a/dist/ttfb-go_linux_arm b/dist/ttfb-go_linux_arm
index cac03c5..01416ca 100755
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diff --git a/dist/ttfb-go_linux_arm64 b/dist/ttfb-go_linux_arm64
index b262fc3..2038048 100755
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diff --git a/dist/ttfb-go_linux_arm64_static b/dist/ttfb-go_linux_arm64_static
index 1c6c92f..4c39f3c 100755
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diff --git a/dist/ttfb-go_linux_arm_static b/dist/ttfb-go_linux_arm_static
index 365530c..bc642d1 100755
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diff --git a/dist/ttfb-go_static b/dist/ttfb-go_static
index 21a51af..c2eac76 100755
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diff --git a/main.go b/main.go
index 31e1294..e902ee6 100644
--- a/main.go
+++ b/main.go
@@ -30,42 +30,28 @@ func MeasureTTFB(url string, cookie string) (int64, int, error) {
 
     // If a cookie is provided, set it in the request header.
     if cookie != "" {
+        // Clean up and format the cookie properly
+        cookie = strings.TrimSpace(cookie)
+        if !strings.Contains(cookie, "=") {
+            return 0, 0, fmt.Errorf("invalid cookie format")
+        }
         req.Header.Set("Cookie", cookie)
     }
 
-    // Create a channel to capture the time to first byte
-    ttfbChan := make(chan int64)
-    errorChan := make(chan error)
-    statusCodeChan := make(chan int)
-
-    // Record the start time
+    // Record the start time.
     start := time.Now()
 
-    go func() {
-        // Perform the request
-        resp, err := client.Do(req)
-        if err != nil {
-            errorChan <- err
-            return
-        }
-        defer resp.Body.Close()
-
-        // Measure the time taken to receive the first byte
-        ttfb := time.Since(start).Milliseconds()
-        ttfbChan <- ttfb
-        statusCodeChan <- resp.StatusCode
-
-        // Read the body to ensure we handle the response properly
-        _, _ = ioutil.ReadAll(resp.Body)
-    }()
-
-    select {
-    case ttfb := <-ttfbChan:
-        statusCode := <-statusCodeChan
-        return ttfb, statusCode, nil
-    case err := <-errorChan:
+    // Perform the request.
+    resp, err := client.Do(req)
+    if err != nil {
         return 0, 0, err
     }
+    defer resp.Body.Close()
+
+    // Measure the time taken to receive the first byte.
+    ttfb := time.Since(start).Milliseconds()
+
+    return ttfb, resp.StatusCode, nil
 }
 
 func main() {