博客SEO June 2021核心更新

June 2021核心更新是 Google 对搜索引擎优化（SEO）的重要更新，旨在提高搜索结果的质量和相关性。

<html>
  <head>
    <title>博客SEO June 2021核心更新</title>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
  </head>
  <body>
    <div class="container">
      <div class="header">
        <h1>博客SEO June 2021核心更新</h1>
      </div>
      <div class="content">
        <p>June 2021核心更新是 Google 对搜索引擎优化（SEO）的重要更新，旨在提高搜索结果的质量和相关性</p>
        <script>
          document.addEventListener("DOMContentLoaded", function () {
            var interactive = document.querySelector(".interactive");
            interactive.addEventListener("click", function () {
              alert("Hello, World!");
            });
          });
        </script>
      </div>
    </div>
  </body>
</html>