diff --git a/go.mod b/go.mod
index f220278..e3bbdef 100644
--- a/go.mod
+++ b/go.mod
@@ -7,7 +7,7 @@ require (
 	github.com/gospider007/bs4 v0.0.0-20240408033320-806c486ddce6
 	github.com/gospider007/gson v0.0.0-20240320040553-de4a050b30c2
 	github.com/gospider007/gtls v0.0.0-20240104034426-5073ca328e04
-	github.com/gospider007/ja3 v0.0.0-20240430034715-7cdc877a8bb4
+	github.com/gospider007/ja3 v0.0.0-20240501035452-cf16a59548ef
 	github.com/gospider007/net v0.0.0-20240414111018-b6269c96a78a
 	github.com/gospider007/re v0.0.0-20240227100911-e27255e48eff
 	github.com/gospider007/tools v0.0.0-20231202084937-8b2bc66f8198
diff --git a/go.sum b/go.sum
index 8791e5a..0625422 100644
--- a/go.sum
+++ b/go.sum
@@ -1,5 +1,3 @@
-github.com/PuerkitoBio/goquery v1.9.1 h1:mTL6XjbJTZdpfL+Gwl5U2h1l9yEkJjhmlTeV9VPW7UI=
-github.com/PuerkitoBio/goquery v1.9.1/go.mod h1:cW1n6TmIMDoORQU5IU/P1T3tGFunOeXEpGP2WHRwkbY=
 github.com/PuerkitoBio/goquery v1.9.2 h1:4/wZksC3KgkQw7SQgkKotmKljk0M6V8TUvA8Wb4yPeE=
 github.com/PuerkitoBio/goquery v1.9.2/go.mod h1:GHPCaP0ODyyxqcNoFGYlAprUFH81NuRPd0GX3Zu2Mvk=
 github.com/andybalholm/brotli v1.1.0 h1:eLKJA0d02Lf0mVpIDgYnqXcUn0GqVmEFny3VuID1U3M=
@@ -8,8 +6,6 @@ github.com/andybalholm/cascadia v1.3.2 h1:3Xi6Dw5lHF15JtdcmAHD3i1+T8plmv7BQ/nsVi
 github.com/andybalholm/cascadia v1.3.2/go.mod h1:7gtRlve5FxPPgIgX36uWBX58OdBsSS6lUvCFb+h7KvU=
 github.com/caddyserver/certmagic v0.20.0 h1:bTw7LcEZAh9ucYCRXyCpIrSAGplplI0vGYJ4BpCQ/Fc=
 github.com/caddyserver/certmagic v0.20.0/go.mod h1:N4sXgpICQUskEWpj7zVzvWD41p3NYacrNoZYiRM2jTg=
-github.com/cloudflare/circl v1.3.7 h1:qlCDlTPz2n9fu58M0Nh1J/JzcFpfgkFHHX3O35r5vcU=
-github.com/cloudflare/circl v1.3.7/go.mod h1:sRTcRWXGLrKw6yIGJ+l7amYJFfAXbZG0kBSc8r4zxgA=
 github.com/cloudflare/circl v1.3.8 h1:j+V8jJt09PoeMFIu2uh5JUyEaIHTXVOHslFoLNAKqwI=
 github.com/cloudflare/circl v1.3.8/go.mod h1:PDRU+oXvdD7KCtgKxW95M5Z8BpSCJXQORiZFnBQS5QU=
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
@@ -30,10 +26,8 @@ github.com/gospider007/gson v0.0.0-20240320040553-de4a050b30c2 h1:pS4rcG7+3YDiNZ
 github.com/gospider007/gson v0.0.0-20240320040553-de4a050b30c2/go.mod h1:tL+3YduR/6ofo4cdv4lpBw5+nph0OJ11x1uOKLyo9Ro=
 github.com/gospider007/gtls v0.0.0-20240104034426-5073ca328e04 h1:iAmk4YVKoOllDO9LryTAMWUgjEAALG1KYWLiRim+LfI=
 github.com/gospider007/gtls v0.0.0-20240104034426-5073ca328e04/go.mod h1:3yfOTfRE03+Itp1M+paIy+AJVVpoTFyRyqJboTNLrSg=
-github.com/gospider007/ja3 v0.0.0-20240416033442-0049752596ae h1:Rcnjhlo5Pkb+B13kEPm+XYEYLBfT5ouJ35psjDpYlOk=
-github.com/gospider007/ja3 v0.0.0-20240416033442-0049752596ae/go.mod h1:174oisiluuSkOdZgEjC06o3Brx0GoUuVC91v09sFp7I=
-github.com/gospider007/ja3 v0.0.0-20240430034715-7cdc877a8bb4 h1:ZTShWSMfoui7FZ+vLxpAMldV8RNN1m/C2XkiceNoYpM=
-github.com/gospider007/ja3 v0.0.0-20240430034715-7cdc877a8bb4/go.mod h1:R99AR5ZmwTHx6Ki9FZ0AabS0OuwdG9hBY+efzgAS80Q=
+github.com/gospider007/ja3 v0.0.0-20240501035452-cf16a59548ef h1:coXlCW98+H+dMg1NT1H95hriXbHUbFuajJoFl9P9vzM=
+github.com/gospider007/ja3 v0.0.0-20240501035452-cf16a59548ef/go.mod h1:R99AR5ZmwTHx6Ki9FZ0AabS0OuwdG9hBY+efzgAS80Q=
 github.com/gospider007/kinds v0.0.0-20231024093643-7a4424f2d30e h1:lmX6IQKkrNDbXfHsvrv1Uz0MoG2v5+4VC6Gdh9irUNY=
 github.com/gospider007/kinds v0.0.0-20231024093643-7a4424f2d30e/go.mod h1:nB4OMmd8Ji92yEmgjbHcqLcBHTAhSSmlGNb2JpTYK9A=
 github.com/gospider007/net v0.0.0-20240414111018-b6269c96a78a h1:jqjiZ/M5NtlfmkzFPYq3dzIjcJ67GNbjiYDt1OeJJq8=
diff --git a/tools.go b/tools.go
index a2dd752..1c449be 100644
--- a/tools.go
+++ b/tools.go
@@ -117,10 +117,13 @@ func httpWrite(r *http.Request, w *bufio.Writer, orderHeaders []string) (err err
 	if r.Header.Get("Host") == "" {
 		r.Header.Set("Host", host)
 	}
+	if r.Header.Get("Connection") == "" {
+		r.Header.Set("Connection", "keep-alive")
+	}
 	if r.Header.Get("User-Agent") == "" {
 		r.Header.Set("User-Agent", UserAgent)
 	}
-	if r.Header.Get("Content-Length") == "" && shouldSendContentLength(r) {
+	if r.Header.Get("Content-Length") == "" && r.ContentLength != 0 && shouldSendContentLength(r) {
 		r.Header.Set("Content-Length", fmt.Sprint(r.ContentLength))
 	}
 	if _, err = w.WriteString(fmt.Sprintf("%s %s %s\r\n", r.Method, ruri, r.Proto)); err != nil {