feat: Use domain name and timestamp in output filename

main.go

@@ -4,7 +4,9 @@ import (
 	"flag"
 	"fmt"
 	"log"
+	"net/url"
 	"os"
+	"strings"
 	"time"
 )
 
@@ -22,8 +24,15 @@ func main() {
 		log.Fatal(err)
 	}
 
-	// Create results file with current date
-	filename := fmt.Sprintf("result-%s.txt", time.Now().Format("2006-01-02"))
+	// Extract domain from URL
+	parsedURL, err := url.Parse(*url)
+	if err != nil {
+		log.Fatal(err)
+	}
+	domain := strings.TrimPrefix(parsedURL.Hostname(), "www.")
+	
+	// Create results file with domain and timestamp
+	filename := fmt.Sprintf("%s-%s.txt", domain, time.Now().Format("2006-01-02-150405"))
 	f, err := os.Create(filename)
 	if err != nil {
 		log.Fatal(err)