diff --git a/src/utils/webVitals.ts b/src/utils/webVitals.ts
index 8fb3ba1..8de9a4c 100644
--- a/src/utils/webVitals.ts
+++ b/src/utils/webVitals.ts
@@ -1,5 +1,13 @@
+/**
+ * Web Vitals Reporting Service
+ * Tracks and reports Core Web Vitals metrics to Google Analytics
+ */
+
 import { onCLS, onINP, onLCP, onFCP, onTTFB } from 'web-vitals';
 
+/**
+ * Web Vitals metric data structure
+ */
 interface Metric {
   name: string;
   value: number;
@@ -8,6 +16,9 @@ interface Metric {
   id: string;
 }
 
+/**
+ * Send Web Vitals metric to Google Analytics and dispatch custom event
+ */
 function sendToAnalytics(metric: Metric) {
   const body = JSON.stringify({
     name: metric.name,
@@ -45,6 +56,9 @@ function sendToAnalytics(metric: Metric) {
   // }
 }
 
+/**
+ * Initialize Web Vitals reporting for all Core Web Vitals metrics
+ */
 export function reportWebVitals() {
   onCLS(sendToAnalytics);
   onINP(sendToAnalytics);
@@ -53,7 +67,9 @@ export function reportWebVitals() {
   onTTFB(sendToAnalytics);
 }
 
-// Helper function to get Web Vitals score
+/**
+ * Calculate Web Vitals rating based on metric thresholds
+ */
 export function getWebVitalsScore(metric: Metric): string {
   const thresholds = {
     LCP: { good: 2500, poor: 4000 },