diff --git a/img/encrypted_icon.svg b/img/encrypted_icon.svg
new file mode 100644
index 0000000..2ae17b9
--- /dev/null
+++ b/img/encrypted_icon.svg
@@ -0,0 +1 @@
+<svg style="filter: invert(46%) sepia(84%) saturate(3807%) hue-rotate(7deg) brightness(107%) contrast(104%); " data-name="Layer 1" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 122.88 114.3"><defs><style>.cls-1{fill-rule:evenodd;} </style></defs><title>Escudo com cadeado no centro e conexões saindo dele</title><path class="cls-1" d="M61.46,24.21c11.15,7.07,21.23,10.42,29.87,9.62C92.84,64.38,81.56,82.42,61.57,90c-19.3-7-30.72-24.31-29.87-56.58,10.15.53,20.11-1.66,29.76-9.16Zm14.14-5.3v4.38c1.16.5,2.31.95,3.45,1.37v-4h4a5.06,5.06,0,1,0,0-3.45H77.32a1.71,1.71,0,0,0-1.72,1.72ZM0,36.48a5.06,5.06,0,1,1,7.09,4.63V51.22H25.43c.2,1.17.41,2.32.64,3.45H5.37A1.71,1.71,0,0,1,3.65,53V41.34A5.05,5.05,0,0,1,0,36.48Zm13.91-3.36a5.05,5.05,0,0,1,10-.94c0,.59,0,1.18,0,1.77a5.1,5.1,0,0,1-3.31,3.94v4h3.67c.09,1.17.2,2.32.32,3.45H18.91a1.72,1.72,0,0,1-1.72-1.72V37.85a5,5,0,0,1-3.28-4.73ZM.08,64.49a5.06,5.06,0,0,1,9.81-1.73H28.16c.37,1.18.77,2.33,1.18,3.45H9.89A5.06,5.06,0,0,1,.08,64.49ZM11,85.54a5.06,5.06,0,0,1,3.26-4.73V74.16A1.72,1.72,0,0,1,16,72.44H32.05c.59,1.19,1.22,2.34,1.88,3.46H17.71v4.86A5.06,5.06,0,1,1,11,85.54ZM84.4,114.3a5.06,5.06,0,1,0-4.62-7.1H69.67V94.72q-1.68.93-3.45,1.77v12.44a1.72,1.72,0,0,0,1.72,1.72H79.55a5.05,5.05,0,0,0,4.85,3.65Zm3.37-13.91A5.06,5.06,0,1,0,83,93.66h-4V88.18q-1.67,1.45-3.45,2.76v4.45a1.71,1.71,0,0,0,1.72,1.72H83a5,5,0,0,0,4.73,3.28ZM56.4,114.21a5.05,5.05,0,0,0,1.73-9.8V97.07C57,96.56,55.8,96,54.68,95.43v9a5.05,5.05,0,0,0,1.72,9.8Zm-21-10.91A5.06,5.06,0,0,0,40.08,100h6.65a1.74,1.74,0,0,0,1.72-1.73V91.68C47.26,90.85,46.11,90,45,89v7.56H40.13a5.06,5.06,0,1,0-4.78,6.71Zm87.53-66.82a5.06,5.06,0,1,0-7.09,4.63V51.22H98c-.18,1.17-.39,2.32-.62,3.45h20.18A1.71,1.71,0,0,0,119.23,53V41.34a5.05,5.05,0,0,0,3.65-4.86ZM109,33.12a5.05,5.05,0,0,0-9.81-1.71,5.69,5.69,0,0,0,0,3.51,5.1,5.1,0,0,0,3,3v4H99c-.08,1.17-.17,2.32-.28,3.45H104a1.72,1.72,0,0,0,1.72-1.72V37.85A5,5,0,0,0,109,33.12ZM122.8,64.49A5.06,5.06,0,0,0,113,62.76H95.25c-.38,1.18-.78,2.33-1.21,3.45H113a5.06,5.06,0,0,0,9.81-1.72ZM111.88,85.54a5.06,5.06,0,0,0-3.26-4.73V74.16a1.72,1.72,0,0,0-1.73-1.72H91.28c-.61,1.19-1.26,2.34-1.93,3.46h15.82v4.86a5.06,5.06,0,1,0,6.71,4.78ZM84.4,0a5.06,5.06,0,1,1-4.62,7.09H69.67V20.48c-1.14-.6-2.29-1.22-3.45-1.88V5.37a1.71,1.71,0,0,1,1.72-1.72H79.55A5.05,5.05,0,0,1,84.4,0ZM56.4.08a5.06,5.06,0,0,1,1.73,9.81v8.22q-1.73,1.17-3.45,2.16V9.89A5.06,5.06,0,0,1,56.4.08ZM35.35,11a5.06,5.06,0,0,1,4.73,3.26h6.65A1.74,1.74,0,0,1,48.45,16v7.35c-1.15.48-2.3.91-3.46,1.29V17.71H40.13A5.06,5.06,0,1,1,35.35,11Zm15,39.13h1.11V48.08a10.61,10.61,0,0,1,2.94-7.35,9.77,9.77,0,0,1,14.28,0,10.61,10.61,0,0,1,2.94,7.35v2.05h1.11a1.66,1.66,0,0,1,1.65,1.65V69.16a1.65,1.65,0,0,1-1.65,1.64H50.37a1.65,1.65,0,0,1-1.65-1.64V51.78a1.66,1.66,0,0,1,1.65-1.65Zm9.84,11.1-1.77,4.65h6.24L63,61.17a3.24,3.24,0,1,0-2.83.06ZM54.6,50.13H68.52V48.08a7.51,7.51,0,0,0-2.06-5.2,6.7,6.7,0,0,0-9.8,0,7.51,7.51,0,0,0-2.06,5.2v2.05Z"/></svg>
\ No newline at end of file
diff --git a/index.html b/index.html
index cdb004a..8b28b6e 100644
--- a/index.html
+++ b/index.html
@@ -5,7 +5,10 @@
   <meta http-equiv="X-UA-Compatible" content="IE=edge">
   <meta name="viewport" content="width=device-width, initial-scale=1.0">
 	<meta name="description" content="Simples encriptador de textos">
+	<title>Encrypter/Decrypter Oracle ONE</title>
 
+	<!--INCONE AO LADO DO TÍTULO DA PAGINA-->
+	<link rel="icon" href="/img/encrypted_icon.svg" type="image/icon type">
 	<!--LINK CSS-->
 	<link rel="stylesheet" href="styles/styles.css">
 
@@ -29,7 +32,7 @@
 
 			<!--1° ITEM COM LOGO E TEXTO TÍTULO-->
 			<li class="logo">
-				<a href="https://pt.wikipedia.org/wiki/Encripta%C3%A7%C3%A3o" class="nav-link-logo">
+				<a href="https://pt.wikipedia.org/wiki/Encripta%C3%A7%C3%A3o" target="_blank" class="nav-link-logo">
 					<svg class="spacer1 layer2 layer4"></svg>
 				<span class="link-text text-logo">Encrypter / Decrypter</span>
 				</a>
diff --git a/scripts/main.js b/scripts/main.js
index e645ce1..7364cfd 100644
--- a/scripts/main.js
+++ b/scripts/main.js
@@ -21,16 +21,25 @@ function pegaTexto(){
 
 function mostrarTextEncriptado(){
 	var originaltext = fraseOriginal;
-	Encriptar(originaltext);
-	var text = fraseEncriptada;
-	document.getElementById("textareaDiv").innerHTML = text;
+	if(checagemTextoColado(originaltext) == false){
+		avisoCharIncorreto();
+	}else{
+		Encriptar(originaltext);
+		var text = fraseEncriptada;
+		document.getElementById("textareaDiv").innerHTML = text;
+	};
+	
 		}
 
 function mostrarTextDescriptado(){
-	var originaltext = fraseOriginal;
-	Desencriptar(originaltext);
-	var text = fraseDesencriptada;
-	document.getElementById("textareaDiv").innerHTML = text;
+	var originaltext = fraseOriginal
+	if(checagemTextoColado(originaltext) == false){
+		avisoCharIncorreto();
+	}else{
+		Desencriptar(originaltext);
+		var text = fraseDesencriptada;
+		document.getElementById("textareaDiv").innerHTML = text;
+	}
 		}
 
 function contadorLetras(){
@@ -108,6 +117,31 @@ function copiarTexto(){
 
 }
 
+function checagemTextoColado(texto){
+	const padrao = '[a-z !,?]';
+	for (i = 0; i < texto.length; i++) {
+		if(!texto[i].match(padrao)){
+			return false
+		}
+	}
+}
+function bemVindoConsoleLog(){
+	console.log(
+		"%cBem vindo ao Challenge One da Oracle ONE!",
+		`background-color: #fc6a03;
+		text-shadow: 3px 4px rgb(217,31,38);
+		background:linear-gradient(90deg, #fc6a03, #f29450);
+		font-weight: bold;
+		padding: 1rem;
+		color: white;
+		border-radius: 0.5em;
+		`
+	)
+	
+}
+
+//background:linear-gradient(90deg, #fc6a03, #0a72e9, #fc6a03);
+
 var fraseOriginal;
 var fraseEncriptada;
 var fraseDesencriptada;
@@ -126,4 +160,6 @@ var descrypt = document.getElementById("btn-exec-des");
 descrypt.addEventListener("click", mostrarTextDescriptado, false); 
 
 var copy = document.getElementById('btn-copy1');
-copy.addEventListener("click", copiarTexto, false); 
+copy.addEventListener("click", copiarTexto, false);
+
+bemVindoConsoleLog();
\ No newline at end of file
diff --git a/styles/styles.css b/styles/styles.css
index 62380c5..db69c1e 100644
--- a/styles/styles.css
+++ b/styles/styles.css
@@ -741,4 +741,4 @@ textarea::-webkit-scrollbar-thumb{
 	main{
 		padding-top: 1.5rem;
 	}
-}
\ No newline at end of file
+}