diff --git a/scripts/validate_site.py b/scripts/validate_site.py
index 59812f5..bca7254 100644
--- a/scripts/validate_site.py
+++ b/scripts/validate_site.py
@@ -36,6 +36,7 @@
     f"{CANONICAL_BASE}/2026/patrocinadores.html",
     f"{CANONICAL_BASE}/2026/privacidad.html",
     f"{CANONICAL_BASE}/2026/registro.html",
+    f"{CANONICAL_BASE}/2026/convence-a-tu-jefe.html",
     f"{CANONICAL_BASE}/2026/ponentes.html",
     f"{CANONICAL_BASE}/2026/voluntariado/",
 }
@@ -89,6 +90,11 @@ def handle_starttag(self, tag: str, attrs: list[tuple[str, str | None]]) -> None
         if tag == "link" and "canonical" in (values.get("rel") or "").split():
             if values.get("href"):
                 self.canonicals.append(values["href"])
+        # preconnect y dns-prefetch nombran un origen, no un recurso: la raíz
+        # de fonts.googleapis.com responde 404 aunque el servicio funcione.
+        link_rels = set((values.get("rel") or "").lower().split())
+        if tag == "link" and link_rels & {"preconnect", "dns-prefetch"}:
+            return
         if tag in {"a", "img", "iframe", "link", "script", "source"}:
             reference = values.get("href") or values.get("src")
             if reference:
diff --git a/sitemap.xml b/sitemap.xml
index 7824949..5e849e0 100644
--- a/sitemap.xml
+++ b/sitemap.xml
@@ -48,6 +48,12 @@
     <changefreq>monthly</changefreq>
     <priority>0.8</priority>
   </url>
+  <url>
+    <loc>https://pycon.pa/2026/convence-a-tu-jefe.html</loc>
+    <lastmod>2026-09-18</lastmod>
+    <changefreq>monthly</changefreq>
+    <priority>0.7</priority>
+  </url>
   <url>
     <loc>https://pycon.pa/2026/ponentes.html</loc>
     <lastmod>2026-08-24</lastmod>