diff --git a/cmd/tools/fast/header.html b/cmd/tools/fast/header.html
index 74ecbede02..53bff3257e 100644
--- a/cmd/tools/fast/header.html
+++ b/cmd/tools/fast/header.html
@@ -49,6 +49,20 @@ table td:nth-child(3) {
.equal {
background-color: rgb(113, 68, 172);
}
+
+table {
+ counter-reset: rowNumber -1;
+}
+table tr {
+ counter-increment: rowNumber;
+}
+table tr td:first-child::after {
+ position: absolute;
+ top: -1px;
+ right: 0px;
+ content: counter(rowNumber);
+ font-size: 10px;
+}