diff --git a/site/content/examples/09-transitions/06-deferred-transitions/App.svelte b/site/content/examples/09-transitions/06-deferred-transitions/App.svelte
index f8c74081fe..5ee7da1263 100644
--- a/site/content/examples/09-transitions/06-deferred-transitions/App.svelte
+++ b/site/content/examples/09-transitions/06-deferred-transitions/App.svelte
@@ -56,8 +56,8 @@
 					>
 
 					<p class='credit'>
-						<a target="_blank" href="https://www.flickr.com/photos/{d.path}">via Flickr</a> &ndash;
-						<a target="_blank" href={d.license.url}>{d.license.name}</a>
+						<a target="_blank" rel="noreferrer" href="https://www.flickr.com/photos/{d.path}">via Flickr</a> &ndash;
+						<a target="_blank" rel="noreferrer" href={d.license.url}>{d.license.name}</a>
 					</p>
 				</div>
 			{/await}
diff --git a/site/content/examples/21-miscellaneous/01-hacker-news/Summary.svelte b/site/content/examples/21-miscellaneous/01-hacker-news/Summary.svelte
index 08d515f3c2..2a54289119 100644
--- a/site/content/examples/21-miscellaneous/01-hacker-news/Summary.svelte
+++ b/site/content/examples/21-miscellaneous/01-hacker-news/Summary.svelte
@@ -13,7 +13,7 @@
 
 <article>
 	<span>{i + offset + 1}</span>
-	<h2><a target="_blank" href={url}>{item.title}</a></h2>
+	<h2><a target="_blank" rel="noreferrer" href={url}>{item.title}</a></h2>
 	<p class="meta"><a href="#/item/{item.id}">{comment_text()}</a> by {item.user} {item.time_ago}</p>
 </article>
 
@@ -37,4 +37,4 @@
 	a {
 		color: #333;
 	}
-</style>
\ No newline at end of file
+</style>
diff --git a/site/content/tutorial/04-logic/04-each-blocks/app-a/App.svelte b/site/content/tutorial/04-logic/04-each-blocks/app-a/App.svelte
index 34fb2cebfc..6c0cca3587 100644
--- a/site/content/tutorial/04-logic/04-each-blocks/app-a/App.svelte
+++ b/site/content/tutorial/04-logic/04-each-blocks/app-a/App.svelte
@@ -10,7 +10,7 @@
 
 <ul>
 	<!-- open each block -->
-		<li><a target="_blank" href="https://www.youtube.com/watch?v={cat.id}">
+		<li><a target="_blank" href="https://www.youtube.com/watch?v={cat.id}" rel="noreferrer">
 			{cat.name}
 		</a></li>
 	<!-- close each block -->
diff --git a/site/content/tutorial/04-logic/04-each-blocks/app-b/App.svelte b/site/content/tutorial/04-logic/04-each-blocks/app-b/App.svelte
index 6ea5097be2..3a13c0057f 100644
--- a/site/content/tutorial/04-logic/04-each-blocks/app-b/App.svelte
+++ b/site/content/tutorial/04-logic/04-each-blocks/app-b/App.svelte
@@ -10,7 +10,7 @@
 
 <ul>
 	{#each cats as { id, name }, i}
-		<li><a target="_blank" href="https://www.youtube.com/watch?v={id}">
+		<li><a target="_blank" href="https://www.youtube.com/watch?v={id}" rel="noreferrer">
 			{i + 1}: {name}
 		</a></li>
 	{/each}
diff --git a/site/content/tutorial/04-logic/04-each-blocks/text.md b/site/content/tutorial/04-logic/04-each-blocks/text.md
index 886990f5a0..c3a6c30d4e 100644
--- a/site/content/tutorial/04-logic/04-each-blocks/text.md
+++ b/site/content/tutorial/04-logic/04-each-blocks/text.md
@@ -7,7 +7,7 @@ If you need to loop over lists of data, use an `each` block:
 ```html
 <ul>
 	{#each cats as cat}
-		<li><a target="_blank" href="https://www.youtube.com/watch?v={cat.id}">
+		<li><a target="_blank" href="https://www.youtube.com/watch?v={cat.id}" rel="noreferrer">
 			{cat.name}
 		</a></li>
 	{/each}
@@ -20,10 +20,10 @@ You can get the current *index* as a second argument, like so:
 
 ```html
 {#each cats as cat, i}
-	<li><a target="_blank" href="https://www.youtube.com/watch?v={cat.id}">
+	<li><a target="_blank" href="https://www.youtube.com/watch?v={cat.id}" rel="noreferrer">
 		{i + 1}: {cat.name}
 	</a></li>
 {/each}
 ```
 
-If you prefer, you can use destructuring — `each cats as { id, name }` — and replace `cat.id` and `cat.name` with `id` and `name`.
\ No newline at end of file
+If you prefer, you can use destructuring — `each cats as { id, name }` — and replace `cat.id` and `cat.name` with `id` and `name`.