diff --git a/sitemap.xml b/sitemap.xml
index 628163f..ecdbd23 100644
--- a/sitemap.xml
+++ b/sitemap.xml
@@ -26,7 +26,7 @@
   </url>
   <url>
     <loc>https://eakondratiev.github.io/ws.htm</loc>
-    <lastmod>2024-11-07</lastmod>
+    <lastmod>2024-11-08</lastmod>
   </url>
   <url>
     <loc>https://eakondratiev.github.io/floating-point-summation.htm</loc>
diff --git a/ws.htm b/ws.htm
index 1b25ee3..5f1dfad 100644
--- a/ws.htm
+++ b/ws.htm
@@ -9,8 +9,8 @@
     <meta name="application-name" content="Whitespace and UTF Characters" />
 
     <meta property="og:title" content="Whitespace and UTF Characters">
-    <meta name="description" content="Highlights whitespaces and UTF characters in a text.">
-    <meta property="og:description" content="Highlights whitespaces and UTF characters in a text.">
+    <meta name="description" content="Highlights whitespaces and UTF characters in a text, reveal deceptive texting techniques.">
+    <meta property="og:description" content="Highlights whitespaces and UTF characters in a text, reveal deceptive texting techniques.">
     <meta property="og:locale" content="en_US">
     <meta property="og:type" content="website">
     <meta property="og:url" content="https://eakondratiev.github.io/ws.htm">
@@ -104,6 +104,15 @@ <h1>Character Code Detector</h1>
             <div>Text length: <b id="text-len">0</b></div>
           </div>
           <div id="text-processed"></div>
+          <h2>About This Tool</h2>
+          <p>
+            Some spammers exploit visually similar letters from different alphabets,
+            as seen in the word <a href="ws.htm?t=S%D0%B0l%D0%B5"><i>Sаlе</i></a>,
+            where the Cyrillic characters <b><i>а</i></b> and <b><i>е</i></b> resemble their Latin counterparts.
+            This service is designed to expose such misleading texting methods.
+            You can also check your own text for occasionally mixing characters.
+            Just copy and paste the text into the box above.
+          </p>
           <div class="page-tags">
             <b>#UTF</b> <b>#Unicode</b> <b>#Hexadecimal</b> <b>Almost AI-free</b>
           </div>