diff --git a/index.html b/index.html
index f451012..3404d12 100644
--- a/index.html
+++ b/index.html
@@ -65,7 +65,11 @@ https://github.com/ardacarofficial/links-website is open source project.
         </div>
         <!-- Fediverse Icon -->
         <div class="header_svg_item">
-          <a href="https://social.tchncs.de/@langfingaz" target="_blank" rel="nofollow">
+          <!--
+            Mastodon profile verification.
+            rel="me" indicates that the current document represents the person who owns the linked content.
+          -->
+          <a href="https://social.tchncs.de/@langfingaz" target="_blank" rel="me">
             <svg viewBox="0 0 24 24">
               <path d="M 12.914062 1.8984375 C 11.68288 1.8943862 10.639959 2.8650633 10.572266 4.1074219 C 10.560967 4.3147904 10.576103 4.5183256 10.617188 4.7128906 L 5.9707031 7.0664062 C 5.5706508 6.6228234 5.002622 6.3297355 4.3632812 6.2949219 C 3.0806918 6.2250819 1.9741737 7.2175655 1.9042969 8.5 C 1.8367515 9.739646 2.7621582 10.815722 3.9824219 10.949219 L 4.7871094 16.091797 C 4.0144208 16.439416 3.4533281 17.197797 3.4042969 18.097656 C 3.3344201 19.380091 4.3287387 20.488754 5.6113281 20.558594 C 6.5974426 20.61229 7.4782066 20.035437 7.8652344 19.183594 L 13.009766 20.007812 C 13.12819 21.126155 14.050123 22.032707 15.207031 22.095703 C 16.489621 22.165543 17.596139 21.173059 17.666016 19.890625 C 17.705586 19.164394 17.405904 18.49439 16.904297 18.037109 L 19.277344 13.402344 C 19.394373 13.427368 19.513706 13.444474 19.636719 13.451172 C 20.919308 13.521012 22.027779 12.528528 22.097656 11.246094 C 22.167533 9.9636589 21.173215 8.8549962 19.890625 8.7851562 C 19.425246 8.7598153 18.983802 8.8762192 18.605469 9.09375 L 14.927734 5.4023438 C 15.106696 5.0943133 15.217671 4.7415287 15.238281 4.3632812 C 15.308158 3.0808466 14.315792 1.9721837 13.033203 1.9023438 C 12.993122 1.9001613 12.953778 1.8985682 12.914062 1.8984375 z M 12.910156 2.8984375 C 12.933134 2.8985438 12.955293 2.8991261 12.978516 2.9003906 C 13.721639 2.9408554 14.280698 3.5659716 14.240234 4.3085938 C 14.199771 5.0512158 13.577108 5.6088243 12.833984 5.5683594 C 12.09086 5.5278945 11.529849 4.9047315 11.570312 4.1621094 C 11.609512 3.4426941 12.197847 2.8951427 12.910156 2.8984375 z M 11.171875 5.796875 C 11.223884 5.8545397 11.278471 5.9105639 11.335938 5.9628906 L 8.421875 11.650391 L 9.3261719 12.558594 L 12.419922 6.5195312 C 12.501328 6.536868 12.585525 6.5500107 12.669922 6.5585938 L 13.082031 9.203125 L 14.347656 9.40625 L 13.871094 6.3613281 C 13.936419 6.3314399 13.998492 6.2973159 14.060547 6.2617188 L 17.740234 9.953125 C 17.702447 10.018157 17.66822 10.085442 17.636719 10.154297 L 11.326172 9.1425781 L 10.742188 10.283203 L 17.439453 11.357422 C 17.447743 11.437061 17.460322 11.516472 17.476562 11.59375 L 15.085938 12.804688 L 15.285156 14.070312 L 18.029297 12.679688 C 18.081276 12.737322 18.135928 12.7934 18.193359 12.845703 L 15.820312 17.478516 C 15.749631 17.46346 15.676487 17.451838 15.603516 17.443359 L 14.617188 11.132812 L 13.351562 10.929688 L 14.398438 17.625 C 14.322179 17.658611 14.24769 17.696978 14.175781 17.738281 L 12.283203 15.839844 L 11.140625 16.419922 L 13.310547 18.597656 C 13.271358 18.665016 13.235559 18.733228 13.203125 18.804688 L 8.0605469 17.980469 C 8.0522724 17.902039 8.0394145 17.82418 8.0234375 17.748047 L 13.724609 14.861328 L 13.527344 13.59375 L 7.4726562 16.664062 C 7.4204501 16.605975 7.364379 16.550732 7.3066406 16.498047 L 8.5292969 14.113281 L 7.625 13.205078 L 6.2226562 15.939453 C 6.1469584 15.923329 6.0704996 15.910911 5.9921875 15.902344 L 5.1875 10.759766 C 5.2581079 10.728027 5.327696 10.692664 5.3945312 10.654297 L 9.90625 15.181641 L 11.048828 14.601562 L 6.2597656 9.7949219 C 6.2996791 9.726317 6.3362383 9.6548849 6.3691406 9.5820312 L 9.0175781 10.005859 L 9.6015625 8.8652344 L 6.5605469 8.3769531 C 6.5522717 8.3011362 6.5389276 8.2260053 6.5234375 8.1523438 L 11.171875 5.796875 z M 4.2402344 7.2910156 C 4.2632084 7.2911217 4.2853711 7.2917042 4.3085938 7.2929688 C 5.0517175 7.3334336 5.6127293 7.9585498 5.5722656 8.7011719 C 5.5318019 9.443794 4.9071863 10.001402 4.1640625 9.9609375 C 3.4209388 9.9204727 2.8618801 9.2973096 2.9023438 8.5546875 C 2.941543 7.8352724 3.5280406 7.2877272 4.2402344 7.2910156 z M 19.699219 9.7832031 C 19.744627 9.78115 19.789492 9.7826272 19.835938 9.7851562 C 20.579061 9.825621 21.13812 10.448784 21.097656 11.191406 C 21.057193 11.934028 20.43453 12.49359 19.691406 12.453125 C 18.948282 12.41266 18.387271 11.787544 18.427734 11.044922 C 18.465669 10.348713 19.01809 9.8140005 19.699219 9.7832031 z M 5.7402344 16.886719 C 5.7632084 16.886825 5.7873243 16.88936 5.8105469 16.890625 C 6.5536706 16.93109 7.1127294 17.554252 7.0722656 18.296875 C 7.0318019 19.039497 6.4071863 19.601012 5.6640625 19.560547 C 4.9209387 19.520082 4.3638332 18.893012 4.4042969 18.150391 C 4.4434961 17.430975 5.0280405 16.88343 5.7402344 16.886719 z M 15.337891 18.427734 C 15.360868 18.427841 15.383027 18.428423 15.40625 18.429688 C 16.149373 18.470152 16.708432 19.093315 16.667969 19.835938 C 16.627505 20.578559 16.004842 21.138121 15.261719 21.097656 C 14.518594 21.057191 13.957583 20.434028 13.998047 19.691406 C 14.037246 18.971991 14.625582 18.42444 15.337891 18.427734 z  "/>
             </svg>