diff --git a/docs/index.html b/docs/index.html
index e9fa98b3..44ed9f9c 100644
--- a/docs/index.html
+++ b/docs/index.html
@@ -16,6 +16,7 @@
   <link rel="author" href="/humans.txt" type="text/plain">
   <link rel="preload" href="https://cdn.jsdelivr.net/gh/lovell/sharp@v0.25.3/docs/README.md" as="fetch" type="text/markdown" crossorigin>
   <link rel="preload" href="https://cdn.jsdelivr.net/gh/lovell/sharp@master/docs/image/sharp-logo.svg" as="image" type="image/svg+xml" crossorigin>
+  <link rel="dns-prefetch" href="https://pixel.plumbing">
   <link rel="dns-prefetch" href="https://www.google-analytics.com">
   <script type="application/ld+json">
   {