diff --git a/README.md b/README.md
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+++ b/README.md
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 # `hstspreload.appspot.com`
 
+![favicon](favicon.svg)
+
 This folder contains the source for `v2` of [hstspreload.appspot.com](https://hstspreload.appspot.com/).
 
 See the [`app-engine` branch](https://github.com/chromium/hstspreload.appspot.com/tree/app-engine) for the `v1` code currently running on https://hstspreload.appspot.com/
diff --git a/favicon.svg b/favicon.svg
new file mode 100644
index 0000000..7b71baa
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+    <!-- Generator: Sketch 3.7.2 (28276) - http://www.bohemiancoding.com/sketch -->
+    <title>hstspreload-icon-wide</title>
+    <desc>Created with Sketch.</desc>
+    <defs>
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+        </mask>
+    </defs>
+    <g id="Page-1" stroke="none" stroke-width="1" fill="none" fill-rule="evenodd">
+        <g id="wide">
+            <use id="Rectangle-1" stroke="#18911E" mask="url(#mask-2)" stroke-width="8" fill="#1AC222" xlink:href="#path-1"></use>
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