diff --git a/src/biosejo.gmo b/src/biosejo.gmo
index f8de663..bbd85c0 100644
--- a/src/biosejo.gmo
+++ b/src/biosejo.gmo
@@ -13,6 +13,6 @@ In which I introduce {biosejo} and talk about my plans regarding research, note-
 
 you can get the posts by subscribing to the following artisanal atom feed:
 => ./biosejo.xml [biosejo atom feed]
-+ <a href="http://validator.w3.org/check.cgi?url=https%3A//compudanzas.net/biosejo.xml"><img src="./img/banner_valid-atom.png" alt="[Valid Atom 1.0]" title="Validate my Atom 1.0 feed" /></a>
++ <a href="https://validator.w3.org/feed/check.cgi?url=https%3A%2F%2Fcompudanzas.net%2Fbiosejo.xml" target="_blank" rel="noreferrer noopener external" class="icon"><img src="./img/banner_valid-atom.png" alt="[Valid Atom 1.0]" title="Validate my Atom 1.0 feed" /></a>
 
 additionally, updates here are replicated in the {log} and its multiple feeds.