diff --git a/files/classes/submission.py b/files/classes/submission.py
index 38238e0958..30d1cf7803 100644
--- a/files/classes/submission.py
+++ b/files/classes/submission.py
@@ -134,7 +134,7 @@ class Submission(Base, Stndrd, Age_times, Scores, Fuzzing):
 
 		return f"/post/{self.id}/{output}"
 
-	def rendered_page(self, read=None, sort=None, comment=None, comment_info=None, v=None):
+	def rendered_page(self, sort=None, last_view_utc=None, comment=None, comment_info=None, v=None):
 
 		# check for banned
 		if v and (v.admin_level >= 3 or self.author_id == v.id):
@@ -153,8 +153,7 @@ class Submission(Base, Stndrd, Age_times, Scores, Fuzzing):
 		return render_template(template,
 							   v=v,
 							   p=self,
-							   sort=sort,
-							   read=read,
+							   last_view_utc=last_view_utc,
 							   linked_comment=comment,
 							   comment_info=comment_info,
 							   render_replies=True,
diff --git a/files/routes/posts.py b/files/routes/posts.py
index a15d92ece6..c6da808d23 100644
--- a/files/routes/posts.py
+++ b/files/routes/posts.py
@@ -181,11 +181,18 @@ def post_id(pid, anything=None, v=None):
 
 		post.preloaded_comments = [x for x in comments if not (x.author and x.author.shadowbanned) or (v and v.id == x.author_id)]
 
-	if session.get("read_comments"): read = list(set(session.get("read_comments")))
-	else: read = None
-	read_comments = [x.id for x in post.preloaded_comments]
-	if read: session["read_comments"] += read_comments
-	else: session["read_comments"] = read_comments
+	# if session.get("read_comments"): read = list(set(session.get("read_comments")))
+	# else: read = None
+
+	# unread comment highlight
+	last_view_utc = session.get(str(post.id))
+
+	if last_view_utc:
+		last_view_utc = int(last_view_utc)
+
+	session[str(post.id)] = int(time.time())
+
+	#read_comments = [x.id for x in post.preloaded_comments]
 
 	post.views += 1
 	g.db.add(post)
@@ -196,7 +203,7 @@ def post_id(pid, anything=None, v=None):
 
 	post.tree_comments()
 	if request.headers.get("Authorization"): return post.json
-	else: return post.rendered_page(v=v, read=read, sort=sort)
+	else: return post.rendered_page(v=v, last_view_utc=last_view_utc, sort=sort)
 
 
 @app.post("/edit_post/<pid>")
diff --git a/files/templates/comments.html b/files/templates/comments.html
index 2227c79170..dcae4c8efe 100644
--- a/files/templates/comments.html
+++ b/files/templates/comments.html
@@ -111,7 +111,7 @@
 	
 	<div class="comment-body">
 
-		<div id="{% if comment_info and comment_info.id == c.id %}context{%else%}comment-{{c.id}}-only{% endif %}" class="{% if comment_info and comment_info.id == c.id %}context{%endif%}{% if c.is_banned %} banned{% endif %}{% if c.deleted_utc %} deleted{% endif %}" {% if read and c.id not in read %}style="background-color: rgba(179,229,255,0.5)"{% endif %}>
+		<div id="{% if comment_info and comment_info.id == c.id %}context{%else%}comment-{{c.id}}-only{% endif %}" class="{% if comment_info and comment_info.id == c.id %}context{%endif%}{% if c.is_banned %} banned{% endif %}{% if c.deleted_utc %} deleted{% endif %}" {% if last_view_utc and c.created_utc > last_view_utc and not (v and v.id==c.author_id) %}style="background-color: rgba(179,229,255,0.5)"{% endif %}>
 
 			<div class="user-info">
 				<span class="comment-collapse d-md-none" onclick="collapse_comment('{{c.id}}')"></span>