diff --git a/inc/mod/pages.php b/inc/mod/pages.php
index 5af6dc10..ce7bdffb 100644
--- a/inc/mod/pages.php
+++ b/inc/mod/pages.php
@@ -2328,11 +2328,21 @@ function mod_debug_recent_posts() {
 	$query = query($query) or error(db_error());
 	$posts = $query->fetchAll(PDO::FETCH_ASSOC);
 	
+	// Fetch recent posts from flood prevention cache
+	$query = query("SELECT * FROM ``flood`` ORDER BY `time` DESC") or error(db_error());
+	$flood_posts = $query->fetchAll(PDO::FETCH_ASSOC);
+	
 	foreach ($posts as &$post) {
 		$post['snippet'] = pm_snippet($post['body']);
+		foreach ($flood_posts as $flood_post) {
+			if ($flood_post['time'] == $post['time'] &&
+				$flood_post['posthash'] == make_comment_hex($post['body_nomarkup']) &&
+				$flood_post['filehash'] == $post['filehash'])
+				$post['in_flood_table'] = true;
+		}
 	}
 	
-	mod_page(_('Debug: Recent posts'), 'mod/debug/recent_posts.html', array('posts' => $posts));
+	mod_page(_('Debug: Recent posts'), 'mod/debug/recent_posts.html', array('posts' => $posts, 'flood_posts' => $flood_posts));
 }
 
 function mod_debug_sql() {
diff --git a/templates/mod/debug/antispam.html b/templates/mod/debug/antispam.html
index 95aa61a6..9979a093 100644
--- a/templates/mod/debug/antispam.html
+++ b/templates/mod/debug/antispam.html
@@ -14,11 +14,14 @@
 		<tr>
 			<td>{{ config.board_abbreviation|sprintf(hash.board) }}</td>
 			<td>
-				{% if hash.thread %}
+				{% if hash.thread > 0 %}
 					{{ hash.thread }}
+				{% elseif hash.thread < 0 %}
+					Index (page {{ - hash.thread }})
 				{% else %}
 					-
-				{% endif %}</td>
+				{% endif %}
+			</td>
 			<td>
 				<small><code>{{ hash.hash }}</code></small>
 			</td>
@@ -28,7 +31,11 @@
 			<td>
 				{% if hash.expires %}
 					<span title="{{ hash.expires|date(config.post_date) }}">
-						{{ hash.expires|until }}
+						{% if hash.expires < time() %}
+							{{ hash.expires|ago }} ago
+						{% else %}
+							{{ hash.expires|until }}
+						{% endif %}
 					</span>
 				{% else %}
 					-
@@ -55,11 +62,14 @@
 		<tr>
 			<td>{{ config.board_abbreviation|sprintf(hash.board) }}</td>
 			<td>
-				{% if hash.thread %}
+				{% if hash.thread > 0 %}
 					{{ hash.thread }}
+				{% elseif hash.thread < 0 %}
+					Index (page {{ - hash.thread }})
 				{% else %}
 					-
-				{% endif %}</td>
+				{% endif %}
+			</td>
 			<td>
 				<small><code>{{ hash.hash }}</code></small>
 			</td>
@@ -69,7 +79,11 @@
 			<td>
 				{% if hash.expires %}
 					<span title="{{ hash.expires|date(config.post_date) }}">
-						{{ hash.expires|until }}
+						{% if hash.expires < time() %}
+							{{ hash.expires|ago }} ago
+						{% else %}
+							{{ hash.expires|until }}
+						{% endif %}
 					</span>
 				{% else %}
 					-
diff --git a/templates/mod/debug/recent_posts.html b/templates/mod/debug/recent_posts.html
index b84d24ab..e4eb4f3a 100644
--- a/templates/mod/debug/recent_posts.html
+++ b/templates/mod/debug/recent_posts.html
@@ -1,3 +1,40 @@
+<p style="text-align:center">
+	Flood prevention cache:
+</p>
+<table class="modlog" style="width:1%;">
+	<tr>
+		<th>#</th>
+		<th>Time</th>
+		<th>Board</th>
+		<th>Post hash</th>
+		<th>File hash</th>
+	</tr>
+	{% for post in flood_posts %}
+		<tr>
+			<td class="minimal">{{ post.id }}</td>
+			<td class="minimal"{% if post.in_flood_table %} style="color:red" title="Still in flood prevention cache."{% endif %}>
+				<small>{{ post.time | ago }} ago</small>
+			</td>
+			<td class="minimal">
+				<a href="?/{{ config.board_path|sprintf(post.board) }}{{ config.file_index }}">
+					{{ config.board_abbreviation|sprintf(post.board) }}
+				</a>
+			</td>
+			<td><code>{{ post.posthash }}</code></td>
+			<td>
+				{% if post.filehash %}
+					<code>{{ post.filehash }}</code>
+				{% else %}
+					<em>No file</em>
+				{% endif %}
+			</td>
+		</tr>
+	{% endfor %}
+</table>
+
+<p style="text-align:center">
+	Most recent {{ posts|count }} posts:
+</p>
 <table class="modlog" style="word-wrap: break-word;">
 	<tr>
 		<th>Time</th>
@@ -12,11 +49,13 @@
 	</tr>
 	{% for post in posts %}
 		<tr>
-			<td class="minimal">
+			<td class="minimal"{% if post.in_flood_table %} style="color:red" title="Still in flood prevention cache."{% endif %}>
 				<small>{{ post.time | ago }} ago</small>
 			</td>
 			<td class="minimal">
-				<a href="?/{{ config.board_path|sprintf(post.board) }}{{ config.file_index }}">{{ config.board_abbreviation|sprintf(post.board) }}</a>
+				<a href="?/{{ config.board_path|sprintf(post.board) }}{{ config.file_index }}">
+					{{ config.board_abbreviation|sprintf(post.board) }}
+				</a>
 			</td>
 			<td class="minimal" >
 				{% if post.thread %}