diff --git a/webapp_column_left.py b/webapp_column_left.py
index ee7a6de77..7f87b1208 100644
--- a/webapp_column_left.py
+++ b/webapp_column_left.py
@@ -90,6 +90,7 @@ def getLeftColumnContent(baseDir: str, nickname: str, domainFull: str,
             htmlStr += \
                 '\n      <center>\n' + \
                 '        <img class="leftColImg" ' + \
+                'alt="' + translate['Left column image'] + '" ' + \
                 'loading="lazy" src="/users/' + \
                 nickname + '/' + leftImageFile + '" />\n' + \
                 '      </center>\n'
diff --git a/webapp_column_right.py b/webapp_column_right.py
index 2a5b778d0..3c9d46e45 100644
--- a/webapp_column_right.py
+++ b/webapp_column_right.py
@@ -92,6 +92,7 @@ def getRightColumnContent(baseDir: str, nickname: str, domainFull: str,
             htmlStr += \
                 '\n      <center>\n' + \
                 '          <img class="rightColImg" ' + \
+                'alt="' + translate['Right column image'] + '" ' + \
                 'loading="lazy" src="/users/' + \
                 nickname + '/' + rightImageFile + '" />\n' + \
                 '      </center>\n'
diff --git a/webapp_profile.py b/webapp_profile.py
index 9d56310ff..1729c336a 100644
--- a/webapp_profile.py
+++ b/webapp_profile.py
@@ -324,6 +324,7 @@ def _getProfileHeader(baseDir: str, httpPrefix: str,
         nickname + '/' + defaultTimeline + '" title="' + \
         translate['Switch to timeline view'] + '">\n'
     htmlStr += '        <img class="profileBackground" ' + \
+        'alt="' + translate['Background image'] + '" ' + \
         'src="/users/' + nickname + '/image_' + theme + '.png" /></a>\n'
     htmlStr += '      <figcaption>\n'
     htmlStr += \
@@ -331,6 +332,7 @@ def _getProfileHeader(baseDir: str, httpPrefix: str,
         nickname + '/' + defaultTimeline + '" title="' + \
         translate['Switch to timeline view'] + '">\n' + \
         '          <img loading="lazy" src="' + avatarUrl + '" ' + \
+        'alt="' + translate['Avatar image'] + '" ' + \
         ' class="title"></a>\n'
     htmlStr += '        <h1>' + displayName + '</h1>\n'
     htmlStr += \
@@ -403,6 +405,7 @@ def _getProfileHeaderAfterSearch(baseDir: str,
         nickname + '/' + defaultTimeline + '" title="' + \
         translate['Switch to timeline view'] + '">\n'
     htmlStr += '        <img class="profileBackground" ' + \
+        'alt="' + translate['Background image'] + '" ' + \
         'src="' + imageUrl + '" /></a>\n'
     htmlStr += '      <figcaption>\n'
     if avatarUrl:
@@ -411,6 +414,7 @@ def _getProfileHeaderAfterSearch(baseDir: str,
             translate['Switch to timeline view'] + '">\n'
         htmlStr += \
             '          <img loading="lazy" src="' + avatarUrl + '" ' + \
+            'alt="' + translate['Avatar image'] + '" ' + \
             ' class="title"></a>\n'
     htmlStr += '        <h1>' + displayName + '</h1>\n'
     htmlStr += \
diff --git a/webapp_timeline.py b/webapp_timeline.py
index 8fb46aa52..17b88ff3d 100644
--- a/webapp_timeline.py
+++ b/webapp_timeline.py
@@ -388,8 +388,9 @@ def htmlTimeline(cssCache: {}, defaultTimeline: str,
         '<a href="/users/' + nickname + '" title="' + \
         translate['Switch to profile view'] + '" alt="' + \
         translate['Switch to profile view'] + '">\n'
-    tlStr += '<img loading="lazy" class="timeline-banner" src="' + \
-        usersPath + '/' + bannerFile + '" /></a>\n' + \
+    tlStr += '<img loading="lazy" class="timeline-banner" ' + \
+        'alt="' + translate['Timeline banner image'] + '" ' + \
+        'src="' + usersPath + '/' + bannerFile + '" /></a>\n' + \
         '</header>\n'
 
     if fullWidthTimelineButtonHeader:
diff --git a/webapp_utils.py b/webapp_utils.py
index ae8b810bd..1531c912f 100644
--- a/webapp_utils.py
+++ b/webapp_utils.py
@@ -838,8 +838,8 @@ def htmlPostSeparator(baseDir: str, column: str) -> str:
     if os.path.isfile(separatorImageFilename):
         separatorStr = \
             '<div class="' + separatorClass + '"><center>' + \
-            '<img src="/icons/' + filename + '"/>' + \
-            '</center></div>\n'
+            '<img src="/icons/' + filename + '" ' + \
+            'alt="" /></center></div>\n'
     return separatorStr