From e398325bb05b7f827f9b1ad9bd02c9373f8e39f0 Mon Sep 17 00:00:00 2001
From: wackget <136205263+wackget@users.noreply.github.com>
Date: Sat, 12 Oct 2024 00:37:54 +0100
Subject: [PATCH] Exclude `rel=dns-prefetch` links (#1520)

Resolves #1499
---
 lychee-lib/src/extract/html/html5ever.rs | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/lychee-lib/src/extract/html/html5ever.rs b/lychee-lib/src/extract/html/html5ever.rs
index d10ac4e..e1b7a67 100644
--- a/lychee-lib/src/extract/html/html5ever.rs
+++ b/lychee-lib/src/extract/html/html5ever.rs
@@ -76,10 +76,10 @@ impl TokenSink for LinkExtractor {
                     }
                 }
 
-                // Check and exclude rel=preconnect. Other than prefetch and preload,
-                // preconnect only does DNS lookups and might not be a link to a resource
+                // Check and exclude `rel=preconnect` and `rel=dns-prefetch`. Unlike `prefetch` and `preload`,
+                // `preconnect` and `dns-prefetch` only perform DNS lookups and do not necessarily link to a resource
                 if let Some(rel) = attrs.iter().find(|attr| &attr.name.local == "rel") {
-                    if rel.value.contains("preconnect") {
+                    if rel.value.contains("preconnect") || rel.value.contains("dns-prefetch") {
                         return TokenSinkResult::Continue;
                     }
                 }