diff --git a/main.go b/main.go
index 5004ab7..7f9b2f4 100644
--- a/main.go
+++ b/main.go
@@ -316,32 +316,21 @@ func render(w io.Writer, rs []route) error {
 	return t.Execute(w, data)
 }
 
-func renderBytes(rs *routeStats) ([]byte, error) {
-	var buf bytes.Buffer
-	err := render(&buf, rs.getLongest())
-	return buf.Bytes(), err
-}
-
-func compress(content []byte, err error) ([]byte, error) {
+func compress(cw io.Writer, cr io.Reader, err error) error {
 	if err != nil {
-		return nil, err
+		return err
 	}
-	var compressbuf bytes.Buffer
 
-	cw, err := gzip.NewWriterLevel(&compressbuf, gzip.BestCompression)
+	gzw, err := gzip.NewWriterLevel(cw, gzip.BestCompression)
 	if err != nil {
-		return nil, err
+		return err
 	}
 
-	if _, err = cw.Write(content); err != nil {
-		return nil, err
+	if _, err = io.Copy(gzw, cr); err != nil {
+		return err
 	}
 
-	if err = cw.Close(); err != nil {
-		return nil, err
-	}
-
-	return compressbuf.Bytes(), nil
+	return gzw.Close()
 }
 
 func acceptGzip(h http.Header) bool {
@@ -356,8 +345,8 @@ func acceptGzip(h http.Header) bool {
 func cachedRender(rs *routeStats) http.HandlerFunc {
 	var m sync.Mutex
 	var timestamp time.Time
-	var content []byte
-	var compressed []byte
+	var content bytes.Buffer
+	var compressed bytes.Buffer
 	return func(w http.ResponseWriter, r *http.Request) {
 		if r.Method != http.MethodGet {
 			http.Error(w, "Not Allowed", http.StatusMethodNotAllowed)
@@ -377,8 +366,11 @@ func cachedRender(rs *routeStats) http.HandlerFunc {
 		var err error
 		m.Lock()
 		if time.Since(timestamp) > 5*time.Second {
-			content, err = renderBytes(rs)
-			compressed, err = compress(content, err)
+			content.Reset()
+			compressed.Reset()
+
+			err = render(&content, rs.getLongest())
+			err = compress(&compressed, bytes.NewReader(content.Bytes()), err)
 
 			timestamp = time.Now()
 		}
@@ -399,8 +391,8 @@ func cachedRender(rs *routeStats) http.HandlerFunc {
 			w.Header().Add("Content-Encoding", "gzip")
 		}
 
-		w.Header().Set("Content-Length", strconv.FormatInt(int64(len(c)), 10))
-		http.ServeContent(w, r, "/", timestamp, bytes.NewReader(c))
+		w.Header().Set("Content-Length", strconv.FormatInt(int64(c.Len()), 10))
+		http.ServeContent(w, r, "/", timestamp, bytes.NewReader(c.Bytes()))
 	}
 }