One of W3Techs web technology surveys. https://w3techs.com/ 2002-05-06T00:00:00Z 2026 Q-Success <p>This is the April 2026 issue of the monthly W3Techs overview of the most frequently used site elements.</p><p>You can find the complete and most up-to-date survey at <a href="https://w3techs.com/technologies/overview/site_element">W3Techs.com</a>.</p><table cellspacing="1" cellpadding="4" border="1" style="border-collapse:collapse" bgcolor="#f0f0f0" align="center"><tr><th>Rank</th><th>Site Element</th><th>Usage</th><th>Change</th></tr><tr><td>1.</td><td>CSS</td><td>97.5%</td><td>+0.9%</td></tr><tr><td>2.</td><td>Compression</td><td>91.6%</td><td>+0.7%</td></tr><tr><td>3.</td><td>Default protocol https</td><td>89.5%</td><td>+0.3%</td></tr><tr><td>4.</td><td>Cookies</td><td>41.7%</td><td>+0.2%</td></tr><tr><td>5.</td><td>Default subdomain www</td><td>39.0%</td><td>-0.4%</td></tr><tr><td>6.</td><td>HTTP/3</td><td>38.7%</td><td>+0.5%</td></tr><tr><td>7.</td><td>HTTP/2</td><td>34.7%</td><td>+0.3%</td></tr><tr><td>8.</td><td>HTTP Strict Transport Security</td><td>32.8%</td><td>+0.4%</td></tr><tr><td>9.</td><td>IPv6</td><td>29.7%</td><td>+0.3%</td></tr><tr><td>10.</td><td>ETag</td><td>28.1%</td><td>+0.4%</td></tr><tr><td colspan=99>Copyright &copy; April 2026 W3Techs.com</td></tr></table> https://w3techs.com/technologies/overview/site_element Site Elements April 2026 2026-04-01T00:00:00Z W3Techs.com