/2372"> secondary pages</a>, and many chapters use this new data. Some chapters, however, used just the home pages.
        </p>

        <p>
          HTTP Archive is also considered a lab testing tool, meaning it tests websites from a datacenter and does not collect data from real-world user experiences. All pages are tested with an empty cache in a logged out state, which may not reflect how real users would access them.
        </p>
    </section>

    <section>
      <h3 id="metrics"><a href="#metrics"