diff --git a/index.html b/index.html
index ef9e9575..c31abcbf 100644
--- a/index.html
+++ b/index.html
@@ -169,6 +169,8 @@ <h3 id="overview">Overview<a class="anchor" aria-label="anchor" href="#overview"
 
 - Andreas Bender, Fabian Scheipl, Wolfgang Hartl, Andrew G Day, Helmut Küchenhoff, "Penalized estimation of complex, non-linear exposure-lag-response associations", Biostatistics, , kxy003, 2018, https://doi.org/10.1093/biostatistics/kxy003
  -->
+<!-- Zaehlmarke VGWort -->
+<p><img src="http://vg05.met.vgwort.de/na/55cf63413d644d7e9bc1bd90640da933" width="1" height="1" alt=""></p>
 </div>
 </div>
 
diff --git a/pkgdown.yml b/pkgdown.yml
index ef178d38..0a118af7 100644
--- a/pkgdown.yml
+++ b/pkgdown.yml
@@ -17,7 +17,7 @@ articles:
   strata: strata.html
   tdcovar: tdcovar.html
   tveffects: tveffects.html
-last_built: 2025-01-29T21:11Z
+last_built: 2025-01-29T21:23Z
 urls:
   reference: https://adibender.github.io/pammtools/reference
   article: https://adibender.github.io/pammtools/articles