diff --git a/ABSTRACTS.webp b/ABSTRACTS.webp
new file mode 100644
index 0000000..185fe17
Binary files /dev/null and b/ABSTRACTS.webp differ
diff --git a/blog/templates/landing.html b/blog/templates/landing.html
index 35c40d4..92066f4 100644
--- a/blog/templates/landing.html
+++ b/blog/templates/landing.html
@@ -65,6 +65,6 @@
           </div>
         </div>
       </aside>
-      <img src="ABSTRACTS.png" style="box-shadow: 0 4px 24px rgba(0,0,0,0.6); border-radius: 6px;" />
+      <img src="ABSTRACTS.webp" style="box-shadow: 0 4px 24px rgba(0,0,0,0.6); border-radius: 6px;" />
       </div>
 {{end}}
diff --git a/main.go b/main.go
index d2eac8a..ae31b71 100644
--- a/main.go
+++ b/main.go
@@ -33,11 +33,26 @@ func gzipHandler(next http.Handler) http.Handler {
 	})
 }
 
+func cacheHandler(next http.Handler) http.Handler {
+	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		if strings.HasPrefix(r.URL.Path, "/src/") ||
+			strings.HasPrefix(r.URL.Path, "/content/images/") ||
+			strings.HasPrefix(r.URL.Path, "/ABSTRACTS.") ||
+			strings.HasPrefix(r.URL.Path, "/blog/og/") {
+			w.Header().Set("Cache-Control", "public, max-age=31536000, immutable")
+		}
+		next.ServeHTTP(w, r)
+	})
+}
+
 func main() {
 	mux := http.NewServeMux()
 	mux.HandleFunc("/ABSTRACTS.png", func(w http.ResponseWriter, r *http.Request) {
 		http.ServeFile(w, r, "ABSTRACTS.png")
 	})
+	mux.HandleFunc("/ABSTRACTS.webp", func(w http.ResponseWriter, r *http.Request) {
+		http.ServeFile(w, r, "ABSTRACTS.webp")
+	})
 	mux.Handle("/src/", http.StripPrefix("/src/", http.FileServer(http.Dir("src"))))
 	mux.Handle("/content/images/", http.StripPrefix("/content/images/", http.FileServer(http.Dir("content/images"))))
 
@@ -49,5 +64,5 @@ func main() {
 	mux.HandleFunc("/", blog.ServeLanding)
 
 	log.Println("listening on :8000")
-	http.ListenAndServe(":8000", gzipHandler(mux))
+	http.ListenAndServe(":8000", cacheHandler(gzipHandler(mux)))
 }