diff --git a/internal/dl/dl.go b/internal/dl/dl.go
index f6d8a86..22913eb 100644
--- a/internal/dl/dl.go
+++ b/internal/dl/dl.go
@@ -315,7 +315,13 @@ func Fetch(d Download) {
 }
 
 func RssDownloader(url string) ([]byte, error) {
-	resp, err := http.Get(url)
+	req, err := http.NewRequest("GET", url, nil)
+	if err != nil {
+		return nil, fmt.Errorf("failed to create RSS request: %w", err)
+	}
+	req.Header.Set("User-Agent", "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 Safari/537.36")
+
+	resp, err := http.DefaultClient.Do(req)
 	if err != nil {
 		return nil, fmt.Errorf("failed to fetch RSS feed: %w", err)
 	}
diff --git a/main.go b/main.go
index 59df306..9d63c3d 100644
--- a/main.go
+++ b/main.go
@@ -6,6 +6,7 @@ import (
 	"flag"
 	"fmt"
 	"log"
+	"math/rand"
 	"os"
 	"time"
 
@@ -42,7 +43,10 @@ func run(cfg config.Config) {
 	}
 
 	for _, outlines := range opml.Body.Outline {
-		for _, outline := range outlines.Outlines {
+		for i, outline := range outlines.Outlines {
+			if i > 0 {
+				time.Sleep(time.Duration(1+rand.Float64()*4) * time.Second)
+			}
 			rssData, err := dl.RssDownloader(outline.XmlUrl)
 			if err != nil {
 				log.Printf("Failed to download RSS for %s: %v", outline.Title, err)