diff --git a/index.html b/index.html
index ede50e3b..9eca2b80 100644
--- a/index.html
+++ b/index.html
@@ -47,7 +47,7 @@
       border-bottom: 2px solid #666;
     }
     td {
-      padding: 2px;
+      padding: 5px;
     }
     table.list tr td:first-child:before {
       counter-increment: Serial;
@@ -69,16 +69,25 @@
       width: 60px;
     }
     input[type=text] {
-      width: 250px;
+      width: 170px;
     }
     button.start{
       width: 150px;
       font-size: 16px;
       font-weight: bold;
       color: green;
-      padding: 2px;
+      padding: 7px;
       float: left;
     }
+    button.cancel{
+      width: 150px;
+      font-size: 16px;
+      font-weight: bold;
+      color: red;
+      padding: 7px;
+      float: left;
+      display: none;
+    }
   </style>
 </head>
 <body>
@@ -91,10 +100,10 @@
       </tr>
       <tr>
         <td>
-          <label>تعداد آی‌پی: <input type="number" id="max-ip" min="1" max="500" /></label>
+          <label>تعداد آی‌پی: <input type="number" id="max-ip" min="1" max="5000" /></label>
         </td>
         <td>
-          <label>تاخیر مجاز: <input type="number" id="max-latency" min="300" max="3000" step="50"/></label>
+          <label>تاخیر مجاز: <input type="number" id="max-latency" min="50" max="3000" step="50"/></label>
         </td>
       </tr>
       <tr>
@@ -103,15 +112,23 @@
         </td>
       </tr>
       <tr>
-        <td>
-          <label>استفاده از آدرس لندن: <input id="uk-cdn" type="checkbox" /></label>
+        <td colspan="2">
+          <label>فقط از این رنج آی‌پی: <input type="text" dir="ltr" id="ip-include" placeholder="104.17,141" /></label>
         </td>
-        <td>
-          <button class="start" onclick="startScan()">شروع</button>
+      </tr>
+      <tr>
+        <td colspan="2">
+          <label>شامل این رنج آی‌پی نشود: <input type="text" dir="ltr" id="ip-exclude" placeholder="8,103.22" /></label>
+        </td>
+      </tr>
+      <tr>
+        <td colspan="2">
+          <button id="btn-start" class="start" onclick="startScan()">شروع</button>
+          <button id="btn-cancel" class="cancel" onclick="cancelScan()">لغو</button>
         </td>
       </tr>
     </table>
-    <div class="text-div" style="border-top: 1px solid #666;">
+    <div class="text-div" style="border-top: 1px solid #666; background: white;">
       <div id="start-hint" style="color: red;">قبل از شروع vpn خود را خاموش کنید!</div>
       <div style="width: 110px; float: right;"><span id="test-no"></span></div>
       <div style="width: 120px; float: right;"><span id="ip-no"></span></div>
@@ -148,278 +165,1889 @@
 </html>
 
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-  ],
-  international: [
-    '173.245.48.0/20',
-    '103.21.244.0/22',
-    '103.22.200.0/22',
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-    '104.24.0.0/14',
-    '172.64.0.0/13',
-    '131.0.72.0/22'
-  ]
-};
+const cfIPv4 = [
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+  '172.70.80.0/24',
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+  '172.70.211.0/24',
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+  '172.70.213.0/24',
+  '172.70.214.0/24',
+  '172.70.215.0/24',
+  '172.70.216.0/24',
+  '172.70.217.0/24',
+  '172.70.218.0/24',
+  '172.70.219.0/24',
+  '172.70.220.0/24',
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+  '172.70.226.0/24',
+  '172.70.227.0/24',
+  '172.70.228.0/24',
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+  '172.70.230.0/24',
+  '172.70.231.0/24',
+  '172.70.232.0/24',
+  '172.70.233.0/24',
+  '172.70.234.0/24',
+  '172.70.235.0/24',
+  '172.70.236.0/24',
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+  '172.70.250.0/24',
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+  '172.70.253.0/24',
+  '172.70.254.0/24',
+  '172.70.255.0/24',
+  '172.71.0.0/24',
+  '172.71.2.0/24',
+  '172.71.3.0/24',
+  '172.71.4.0/24',
+  '172.71.5.0/24',
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+  '172.71.12.0/24',
+  '172.71.13.0/24',
+  '172.71.14.0/24',
+  '172.71.15.0/24',
+  '172.71.16.0/24',
+  '172.71.17.0/24',
+  '172.71.20.0/24',
+  '172.71.21.0/24',
+  '172.71.22.0/24',
+  '172.71.23.0/24',
+  '172.71.24.0/24',
+  '172.71.25.0/24',
+  '172.71.26.0/24',
+  '172.71.27.0/24',
+  '172.71.28.0/24',
+  '172.71.29.0/24',
+  '172.71.30.0/24',
+  '172.71.31.0/24',
+  '172.71.80.0/24',
+  '172.71.81.0/24',
+  '172.71.82.0/24',
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+  '172.71.84.0/24',
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+  '172.71.142.0/24',
+  '172.71.143.0/24',
+  '172.71.144.0/24',
+  '172.71.145.0/24',
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+  '172.71.177.0/24',
+  '172.71.178.0/24',
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+  '172.71.186.0/24',
+  '172.71.187.0/24',
+  '172.71.188.0/24',
+  '172.71.189.0/24',
+  '172.71.190.0/24',
+  '172.71.191.0/24',
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+  '172.71.194.0/24',
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+  '172.71.200.0/24',
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+  '172.71.209.0/24',
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+  '172.71.214.0/24',
+  '172.71.215.0/24',
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+  '172.71.217.0/24',
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+  '172.71.228.0/24',
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+  '172.71.230.0/24',
+  '172.71.231.0/24',
+  '172.71.232.0/24',
+  '172.71.233.0/24',
+  '172.71.234.0/24',
+  '172.71.235.0/24',
+  '172.71.236.0/24',
+  '172.71.237.0/24',
+  '172.71.238.0/24',
+  '172.71.239.0/24',
+  '172.71.240.0/24',
+  '172.71.241.0/24',
+  '172.71.242.0/24',
+  '172.71.243.0/24',
+  '172.71.244.0/24',
+  '172.71.245.0/24',
+  '172.71.246.0/24',
+  '172.71.247.0/24',
+  '172.71.248.0/24',
+  '172.71.249.0/24',
+  '172.71.250.0/24',
+  '172.71.251.0/24',
+  '172.71.252.0/24',
+  '172.71.253.0/24',
+  '172.71.254.0/24',
+  '172.71.255.0/24',
+  '173.245.49.0/24',
+  '173.245.54.0/24',
+  '173.245.58.0/24',
+  '173.245.59.0/24',
+  '173.245.63.0/24',
+  '188.114.96.0/24',
+  '188.114.97.0/24',
+  '188.114.98.0/24',
+  '188.114.99.0/24',
+  '188.114.100.0/24',
+  '188.114.102.0/24',
+  '188.114.103.0/24',
+  '188.114.106.0/23',
+  '188.114.108.0/24',
+  '188.114.111.0/24',
+  '190.93.240.0/20',
+  '190.93.244.0/22',
+  '197.234.240.0/22',
+  '197.234.240.0/24',
+  '197.234.241.0/24',
+  '197.234.242.0/24',
+  '198.41.129.0/24',
+  '198.41.192.0/21',
+  '198.41.200.0/21',
+  '198.41.208.0/23',
+  '198.41.211.0/24',
+  '198.41.212.0/24',
+  '198.41.214.0/23',
+  '198.41.216.0/24',
+  '198.41.217.0/24',
+  '198.41.218.0/24',
+  '198.41.219.0/24',
+  '198.41.220.0/23',
+  '198.41.222.0/24',
+  '198.41.223.0/24',
+  '198.41.228.0/22',
+  '198.41.232.0/23',
+  '198.41.236.0/22',
+  '198.41.240.0/24',
+  '198.41.241.0/24',
+  '198.41.242.0/24',
+  '199.27.128.0/22',
+  '199.27.132.0/24',
+  '199.27.134.0/23',
+  '172.64.158.0/24',
+  '197.234.240.0/22',
+  '197.234.240.0/24',
+  '197.234.241.0/24',
+  '197.234.242.0/24',
+  '190.93.244.0/22'
+];
 
 let maxIP;
 let testNo;
 let validIPs;
 let maxLatency;
 let numberOfWorkingIPs;
-let includeUK;
 let ipRegex;
+let immediateStop = false;
 
-document.getElementById('max-ip').value = localStorage.getItem('max-ip') || 5;
-document.getElementById('max-latency').value = localStorage.getItem('max-latency') || 1000;
-document.getElementById('uk-cdn').checked = localStorage.getItem('include-uk') == 'true';
+document.getElementById('max-ip').value = localStorage.getItem('max-ip') || 20;
+document.getElementById('max-latency').value = localStorage.getItem('max-latency') || 400;
 document.getElementById('ip-regex').value = localStorage.getItem('ip-regex');
+document.getElementById('ip-include').value = localStorage.getItem('ip-include');
+document.getElementById('ip-exclude').value = localStorage.getItem('ip-exclude');
 
-function startScan() {
-  document.getElementById('start-hint').style.display='none';
+function cancelScan() {
+  immediateStop = true;
+}
 
+function startScan() {
   maxIP = ~~document.getElementById('max-ip').value;
   maxLatency = ~~document.getElementById('max-latency').value;
-  includeUK = !!document.getElementById('uk-cdn').checked;
   ipRegex = document.getElementById('ip-regex').value;
+  ipInclude = document.getElementById('ip-include').value;
+  ipExclude = document.getElementById('ip-exclude').value;
 
   localStorage.setItem('max-ip', maxIP);
   localStorage.setItem('max-latency', maxLatency);
-  localStorage.setItem('include-uk', includeUK);
   localStorage.setItem('ip-regex', ipRegex);
+  localStorage.setItem('ip-include', ipInclude);
+  localStorage.setItem('ip-exclude', ipExclude);
 
   testNo = 0;
   numberOfWorkingIPs = 0;
   validIPs = [];
 
-  var ips = [];
-  for (const cdnLocation in cfIPv4) {
-    if (!includeUK && cdnLocation === 'uk') {
-      continue;
+  document.getElementById('result').innerHTML = '';
+  document.getElementById('btn-start').disabled = 'disabled';
+  document.getElementById('btn-start').style.color = 'gray';
+  document.getElementById('test-no').innerText = '';
+  document.getElementById('start-hint').innerHTML = `در حال آماده سازی <img src="./assets/preparing.gif" height="16" />`;
+  document.getElementById('start-hint').style = `color: green; font-weight: bold;`;
+
+  setTimeout(() => {
+    var ips = [];
+    var regex = null;
+    var includeRegex = null;
+    var excludeRegex = null;
+    if (ipRegex) {
+      regex = new RegExp(ipRegex);
     }
-    for (const cidr of cfIPv4[cdnLocation]) {
-      ips = ips.concat(cidrToIpArray(cidr, cdnLocation));
+    if (ipInclude) {
+      includeRegex = new RegExp(
+        ipInclude.split(',').map(c => {return '^' + c.replaceAll('.', '\\.') + '\\.'}).join('|')
+      );
+    }
+    if (ipExclude) {
+      excludeRegex = new RegExp(
+        ipExclude.split(',').map(c => {return '^' + c.replaceAll('.', '\\.') + '\\.'}).join('|')
+      );
+    }
+    for (const cidr of cfIPv4) {
+      if (regex && !regex.test(cidr)) {
+        continue;
+      }
+      if (includeRegex && !includeRegex.test(cidr)) {
+        continue;
+      }
+      if (excludeRegex && excludeRegex.test(cidr)) {
+        continue;
+      }
+      ips = ips.concat(cidrToIpArray(cidr));
     }
-  }
 
-  if (ipRegex) {
-    const regex = new RegExp(ipRegex);
-    ips = ips.filter(el => regex.test(el.ip));
-  }
+    ips = randomizeElements(ips);
 
-  testIPs(randomizeElements(ips));
+    document.getElementById('start-hint').style.display = 'none';
+    document.getElementById('btn-start').style.display = 'none';
+    document.getElementById('btn-cancel').style.display = 'inline-block';
+    testIPs(ips);
+  }, 1000);
 }
 
 async function testIPs(ipList) {
-  for (const el of ipList) {
+  for (const ip of ipList) {
+    if (immediateStop) {
+      break;
+    }
     testNo++;
     var testResult = 0;
-    const url = `https://${el.ip}/__down`;
+    const url = `http://${ip}/cdn-cgi/trace`;
     const startTime = performance.now();
     const controller = new AbortController();
-
-    var timeout = 2 * maxLatency;
+    const multiply = maxLatency <= 500 ? 1.5 : (maxLatency <= 1000 ? 1.2 : 1);
+    var timeout = 1.5 * multiply * maxLatency;
     var chNo = 0;
     for (const ch of ['', '|', '/', '-', '\\']) {
       const timeoutId = setTimeout(() => {
         controller.abort();
       }, timeout);
       if (ch) {
+        timeout = 1 * multiply * maxLatency;
         document.getElementById('test-no').innerText = `تست شماره ${testNo}:`;
-        document.getElementById('ip-no').innerText = el.ip;
+        document.getElementById('ip-no').innerText = ip;
         document.getElementById('ip-no').style = `color: green`;
         document.getElementById('ip-try').innerText = ch;
         document.getElementById('ip-latency').innerText = Math.floor((performance.now() - startTime) / chNo) + 'ms';
       } else {
-        timeout = 1.5 * maxLatency;
+        timeout = 1.2 * multiply * maxLatency;
         document.getElementById('test-no').innerText = `تست شماره ${testNo}:`;
-        document.getElementById('ip-no').innerText = el.ip;
+        document.getElementById('ip-no').innerText = ip;
         document.getElementById('ip-no').style = `color: red`;
         document.getElementById('ip-try').innerText = '';
         document.getElementById('ip-latency').innerText = '';
@@ -431,11 +2059,7 @@
 
         testResult++;
       } catch (error) {
-        if (error.name === "AbortError") {
-          //
-        } else {
-          testResult++;
-        }
+        break;
       }
       clearTimeout(timeoutId);
       chNo++;
@@ -445,7 +2069,7 @@
 
     if (testResult === 5 && latency <= maxLatency) {
       numberOfWorkingIPs++;
-      validIPs.push({ip: el.ip, location: el.location, latency: latency});
+      validIPs.push({ip: ip, latency: latency});
       const sortedArr = validIPs.sort((a, b) => a.latency - b.latency);
       const tableRows = sortedArr.map(obj => `
         <tr>
@@ -453,8 +2077,7 @@
           <td>${obj.ip}</td>
           <td>${obj.latency}ms</td>
           <td>
-            <img height="20px" src="assets/${obj.location}.png" />
-            <img height="20px" src="assets/copy.png" onclick="copyToClipboard('${obj.ip}')"/>
+            <img height="16px" src="assets/copy.png" onclick="copyToClipboard('${obj.ip}')"/>
           </td>
         </tr>`).join('\n');
       document.getElementById('result').innerHTML = tableRows;
@@ -464,11 +2087,24 @@
       break;
     }
   }
-  document.getElementById('test-no').innerText = `پایان`;
-  document.getElementById('test-no').style = `color: green; font-weight: bold;`;
+
   document.getElementById('ip-no').innerText = '';
   document.getElementById('ip-try').innerText = '';
   document.getElementById('ip-latency').innerText = '';
+  document.getElementById('btn-start').innerText = 'شروع مجدد';
+  document.getElementById('btn-start').disabled = false;
+  document.getElementById('btn-start').style.display = 'inline-block';
+  document.getElementById('btn-start').style.color = 'green';
+  document.getElementById('btn-cancel').style.display = 'none';
+
+  if (immediateStop) {
+    immediateStop = false;
+    document.getElementById('test-no').innerText = `لغو شد!`;
+    document.getElementById('test-no').style = `color: red; font-weight: bold;`;
+  } else {
+    document.getElementById('test-no').innerText = `پایان`;
+    document.getElementById('test-no').style = `color: green; font-weight: bold;`;
+  }
 }
 
 function copyToClipboard(ip) {
@@ -479,7 +2115,7 @@
   });
 }
 
-function cidrToIpArray(cidr, cdnLocation) {
+function cidrToIpArray(cidr) {
   const parts = cidr.split('/');
   const ip = parts[0];
   const mask = parseInt(parts[1], 10);
@@ -498,13 +2134,13 @@
     const b = (i >> 16) & 0xff;
     const c = (i >> 8) & 0xff;
     const d = i & 0xff;
-    ips.push({ip: `${a}.${b}.${c}.${d}`, location: cdnLocation});
+    ips.push(`${a}.${b}.${c}.${d}`);
   }
   return ips;
 }
 
 function randomizeElements(arr) {
-  return [...arr].sort((el1, el2) => {return el2.location === 'uk' ? 0.75 - Math.random() : 0.5 - Math.random()});
+  return [...arr].sort(() => {return 0.5 - Math.random()});
 }
 
 function downloadAsCSV() {
