diff --git a/gallery/templates/group.html b/gallery/templates/group.html
index 3756d16..11a789a 100644
--- a/gallery/templates/group.html
+++ b/gallery/templates/group.html
@@ -211,7 +211,7 @@
 {% block content %}
     {% if images %}
         <div class="banner">
-            <img src="{{ url_for('api.file', file_name=images.0.filename ) }}?r=prev" onload="imgFade(this)" style="opacity:0;"/>
+            <img src="{{ url_for('api.file', file_name=images.0.filename ) }}?r=prev" onload="imgFade(this)" style="opacity:0;" alt="{% if images.0.alt %}{{ images.0.alt }}{% else %}Group Banner{% endif %}"/>
             <span class="banner-filter"></span>
             <div class="banner-content">
                 <p class="banner-info">By <a href="{{ url_for('profile.profile', id=group.author_id) }}" class="link">{{ group.author_username }}</a> - {{ images|length }} Images</p>
@@ -270,7 +270,7 @@
                         <p class="image-subtitle"></p>
                         <p class="image-title"><span class="time">{{ image.created_at }}</span></p>
                     </div>
-                    <img alt="{{ image.alt }}" data-src="{{ url_for('api.file', file_name=image.filename) }}?r=thumb" onload="this.classList.add('loaded');" id="lazy-load"/>
+                    <img alt="{% if image.alt %}{{ image.alt }}{% else %}Image Thumbnail{% endif %}" data-src="{{ url_for('api.file', file_name=image.filename) }}?r=thumb" onload="this.classList.add('loaded');" id="lazy-load"/>
                 </a>
             {% endfor %}
         </div>
diff --git a/gallery/templates/index.html b/gallery/templates/index.html
index d1c17b3..19224f0 100644
--- a/gallery/templates/index.html
+++ b/gallery/templates/index.html
@@ -52,7 +52,7 @@
                         <p class="image-subtitle"></p>
                         <p class="image-title"><span class="time">{{ image.created_at }}</span></p>
                     </div>
-                    <img fetchpriority="low" alt="{{ image.alt }}" data-src="{{ url_for('api.file', file_name=image.filename) }}?r=thumb" onload="this.classList.add('loaded');" id="lazy-load"/>
+                    <img fetchpriority="low" alt="{% if image.alt %}{{ image.alt }}{% else %}Image Thumbnail{% endif %}" data-src="{{ url_for('api.file', file_name=image.filename) }}?r=thumb" onload="this.classList.add('loaded');" id="lazy-load"/>
                 </a>
             {% endfor %}
         </div>
diff --git a/gallery/templates/layout.html b/gallery/templates/layout.html
index 38fb5d4..5def5f4 100644
--- a/gallery/templates/layout.html
+++ b/gallery/templates/layout.html
@@ -42,11 +42,11 @@
 <body>
     <div class="notifications"></div>
 
-    <button class="top-of-page">
+    <button class="top-of-page" aria-label="Jump to top of page">
         <svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" fill="currentColor" viewBox="0 0 256 256"><path d="M184,216a8,8,0,0,1-8,8H80a8,8,0,0,1,0-16h96A8,8,0,0,1,184,216Zm45.66-101.66-96-96a8,8,0,0,0-11.32,0l-96,96A8,8,0,0,0,32,128H72v24a8,8,0,0,0,8,8h96a8,8,0,0,0,8-8V128h40a8,8,0,0,0,5.66-13.66ZM176,176H80a8,8,0,0,0,0,16h96a8,8,0,0,0,0-16Z"></path></svg>
     </button>
     {% if request.path == "/" %}
-        <button class="info-button">
+        <button class="info-button" aria-label="Show info on gallery">
             <svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" fill="currentColor" viewBox="0 0 256 256"><path d="M128,24A104,104,0,1,0,232,128,104.11,104.11,0,0,0,128,24Zm-4,48a12,12,0,1,1-12,12A12,12,0,0,1,124,72Zm12,112a16,16,0,0,1-16-16V128a8,8,0,0,1,0-16,16,16,0,0,1,16,16v40a8,8,0,0,1,0,16Z"></path></svg>
         </button>
     {% endif %}
diff --git a/gallery/templates/list.html b/gallery/templates/list.html
index ec9467e..298c1ad 100644
--- a/gallery/templates/list.html
+++ b/gallery/templates/list.html
@@ -127,10 +127,10 @@
                     <div class="images size-{{ group.images|length }}">
                         {% if group.images|length > 0 %}
                             {% for image in group.images %}
-                                <img data-src="{{ url_for('api.file', file_name=image.filename) }}?r=thumb" onload="this.classList.add('loaded');" id="lazy-load" class="data-{{ loop.index }}"/>
+                                <img data-src="{{ url_for('api.file', file_name=image.filename) }}?r=thumb" onload="this.classList.add('loaded');" id="lazy-load" class="data-{{ loop.index }}" {% if image.alt %}{{ image.alt }}{% else %}Image Thumbnail{% endif %}/>
                             {% endfor %}
                         {% else %}
-                            <img src="{{ url_for('static', filename='error.png') }}" class="loaded"/>
+                            <img src="{{ url_for('static', filename='error.png') }}" class="loaded" alt="Error thumbnail"/>
                         {% endif %}
                     </div>
                 </a>
