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Detect AdBlock using HTML CSS & JavaScript

Hey friends, today in this blog you’ll learn how to Detect AdBlock using JavaScript. In the earlier blog, I have shared how to Detect Internet Connection Status using JavaScript and now it’s time to create a popup box using JavaScript that detects AdBlocker. If you’re new to this blog and it’s the first blog you’re viewing then click here to view playlists of our all JavaScript Projects on YouTube.

In our program [Detect AdBlock using JavaScript], as you can see in the preview image there is a popup box with some text and a button to dismiss the popup. If the user has enabled AdBlocker then this popup will be displayed and if not then this popup will not be displayed.

You've to create two files (HTML & CSS) and copy the given source codes and paste into your files.

HTML CODE:
<!DOCTYPE html>
<!-- Coding By CodingNepal - youtube.com/codingnepal -->
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Detect AdBlock using JavaScript | CodingNepal</title>
  <link rel="stylesheet" href="style.css">
  <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/5.15.3/css/all.min.css"/>
</head>
<body>
  <div id="detect"></div>
  <div class="wrapper">
    <div class="content">
      <div class="warn-icon">
        <span class="icon"><i class="fas fa-exclamation"></i></span>
      </div>
      <h2>AdBlock Detected!</h2>
      <p>Our website is made possible by displaying ads to our visitors. Please supporting us by whitelisting our website.</p>
      <div class="btn">
        <div class="bg-layer"></div>
        <button>Okay, I'll Whitelist</button>
      </div>
    </div>
  </div>

  <script>
    const detect = document.querySelector("#detect");
    const wrapper = document.querySelector(".wrapper");
    const button = wrapper.querySelector("button");

    let adClasses = ["ad", "ads", "adsbox", "doubleclick", "ad-placement", "ad-placeholder", "adbadge", "BannerAd"];
    for(let item of adClasses){
      detect.classList.add(item);
    }
    let getProperty = window.getComputedStyle(detect).getPropertyValue("display");
    if(!wrapper.classList.contains("show")){
      getProperty == "none" ? wrapper.classList.add("show") : wrapper.classList.remove("show");
    }
    button.addEventListener("click", ()=>{
      wrapper.classList.remove("show");
    });
  </script>

</body>
</html>
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CSS CODE:
@import url('https://fonts.googleapis.com/css2?family=Noto+Sans:wght@700&family=Poppins:wght@400;500;600&display=swap');
*{
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: "Poppins", sans-serif;
}
body{
  width: 100%;
  height: 100vh;
  background: linear-gradient(135deg, #9b27ca 0%, #9927cf 0%, #d33639 100%, #f92121 100%);
}
::selection{
  color: #fff;
  background: #9b27ca;
}
.wrapper{
  position: absolute;
  max-width: 480px;
  top: 50%;
  left: 50%;
  width: 100%;
  padding: 40px 30px;
  background: #fff;
  border-radius: 15px;
  opacity: 0;
  pointer-events: none;
  transform: translate(-50%, -50%) scale(1.2);
  box-shadow: 10px 10px 15px rgba(0,0,0,0.06);
  transition: opacity 0.2s 0s ease-in-out,
              transform 0.2s 0s ease-in-out;
}
.wrapper.show{
  opacity: 1;
  pointer-events: auto;
  transform:translate(-50%, -50%) scale(1);
}
.wrapper .content,
.content .warn-icon,
.warn-icon .icon{
  display: flex;
  align-items: center;
  justify-content: center;
}
.wrapper .content{
  flex-direction: column;
}
.content .warn-icon{
  height: 115px;
  width: 115px;
  border-radius: 50%;
  background: linear-gradient(#9b27ca 0%, #9927cf 0%, #d33639 100%, #f92121 100%);
}
.warn-icon .icon{
  height: 100px;
  width: 100px;
  background: #fff;
  border-radius: inherit;
}
.warn-icon .icon i{
  background: linear-gradient(#9b27ca 0%, #9927cf 0%, #d33639 100%, #f92121 100%);
  background-clip: text;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  font-size: 50px;
}
.content h2{
  margin-top: 35px;
  font-size: 32px;
}
.content p{
  font-size: 19px;
  text-align: center;
  margin-top: 20px;
}
.btn{
  height: 57px;
  width: 223px;
  margin-top: 30px;
  border-radius: 50px;
  position: relative;
  overflow: hidden;
}
.btn .bg-layer{
  height: 100%;
  width: 300%;
  position: absolute;
  left: -100%;
  background: -webkit-linear-gradient(135deg, #9b27ca, #d33639, #9b27ca, #d33639);
  transition: all 0.4s ease;
}
.btn:hover .bg-layer{
  left: 0;
}
.content button{
  position: relative;
  z-index: 1;
  height: 100%;
  width: 100%;
  background: none;
  font-size: 18px;
  border: none;
  outline: none;
  color: #fff;
  cursor: pointer;
}
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That’s all, now you’ve successfully created an AdBlock Detector using HTML CSS & JavaScript. If your code does not work or you’ve faced any error/problem then please download the source code files from the given download link. Click here to download code files.

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