use start page

app/views/shared/_attribution.html.erb

@@ -1 +1 @@
-<%= render 'shared/powered_by', with_counter: local_assigns[:with_counter] %>
+<%= render 'shared/powered_by', with_counter: local_assigns[:with_counter], link_path: local_assigns[:link_path] %>

app/views/shared/_email_attribution.html.erb

@@ -2,5 +2,5 @@
   ---
 </p>
 <p>
-  Sent using <a href="<%= Docuseal::PRODUCT_URL %>"><%= Docuseal.product_name %></a> free document signing.
+  Sent using <a href="<%= Docuseal::PRODUCT_URL %>/start"><%= Docuseal.product_name %></a> free document signing.
 </p>

app/views/shared/_powered_by.html.erb

@@ -9,5 +9,5 @@
   <% else %>
     Powered by
   <% end %>
-  <a href="<%= Docuseal::PRODUCT_URL %>" class="underline"><%= Docuseal.product_name %></a> - open source documents software
+  <a href="<%= Docuseal::PRODUCT_URL %><%= local_assigns[:link_path] %>" class="underline"><%= Docuseal.product_name %></a> - open source documents software
 </div>