diff --git a/app/views/layouts/_mailjet_newsletter.html.haml b/app/views/layouts/_mailjet_newsletter.html.haml
index ef5de8af3..0cf468a00 100644
--- a/app/views/layouts/_mailjet_newsletter.html.haml
+++ b/app/views/layouts/_mailjet_newsletter.html.haml
@@ -1,2 +1,2 @@
-%data.mj-w-data{ "data-apikey" => "1v5T", "data-base" => "https://app.mailjet.com", "data-height" => "328", "data-lang" => "fr_FR", "data-statics" => "statics", "data-token" => "11c89e7ddb46fbcdcb7f8fe5fdfca818", "data-w-id" => "39b", "data-width" => "640" }
+%data.mj-w-data{ "data-apikey" => "1v5T", "data-base" => "https://app.mailjet.com", "data-height" => "328", "data-lang" => "fr_FR", "data-statics" => "statics", "data-token" => "11c89e7ddb46fbcdcb7f8fe5fdfca818", "data-w-id" => "39b", "data-width" => "640", "value" => "mj" }
 %script{ src: 'https://app.mailjet.com/statics/js/widget.modal.js', 'data-turbolinks-eval': 'false' }
diff --git a/app/views/root/landing.html.haml b/app/views/root/landing.html.haml
index bf1d1348e..50e02717a 100644
--- a/app/views/root/landing.html.haml
+++ b/app/views/root/landing.html.haml
@@ -47,7 +47,7 @@
           %p.role-panel-explanation Créez des formulaires en ligne en quelques minutes et instruisez les demandes des usagers sur une plateforme dédiée
 
           = link_to "Demander un compte",
-            "mailto:#{t("dynamics.contact_email")}?subject=Demande de compte administrateur demarches-simplifiees.fr",
+            "mailto:#{t("dynamics.contact_email")}?subject=Demande%20de%20compte%20administrateur%20demarches-simplifiees.fr",
             class: "role-panel-button-primary",
             target: "_blank",
             onclick: "javascript: ga('send', 'pageview', '/demander-une-demo')"
@@ -156,36 +156,36 @@
 
       %ul.users
         %li.user
-          %a{ :href => "https://www.ecologique-solidaire.gouv.fr/", :target => "_blank " }
+          = link_to "https://www.ecologique-solidaire.gouv.fr/", target: :blank do
             %img.user-image{ :src => image_url("landing/users/mtes.jpg"), alt: "Ministère de la Transition Écologique et Solidaire" }
         %li.user
-          %a{ :href => "https://www.iledefrance.fr/", :target => "_blank " }
+          = link_to "https://www.iledefrance.fr/", target: :blank do
             %img.user-image{ :src => image_url("landing/users/region-idf.jpg"), alt: "Région Île-de-France" }
         %li.user
-          %a{ :href => "http://www.artisanat.fr/", :target => "_blank " }
+          = link_to "http://www.artisanat.fr/", target: :blank do
             %img.user-image{ :src => image_url("landing/users/chambres-de-metiers.jpg"), alt: "Chambres des Métiers et de l'Artisanat" }
         %li.user
-          %a{ :href => "http://www.cci.fr/", :target => "_blank " }
+          = link_to "http://www.cci.fr/", target: :blank do
             %img.user-image{ :src => image_url("landing/users/cci.jpg"), alt: "CCI de France" }
         %li.user
-          %a{ :href => "http://www.driea.ile-de-france.developpement-durable.gouv.fr/", :target => "_blank " }
+          = link_to "http://www.driea.ile-de-france.developpement-durable.gouv.fr/", target: :blank do
             %img.user-image{ :src => image_url("landing/users/driea-idf.jpg"), alt: "Direction Régionale et Interdépartementale de l'Équipement et de l'Aménagement" }
 
       %ul.users
         %li.user
-          %a{ :href => "https://www.debatpublic.fr/", :target => "_blank " }
+          = link_to "https://www.debatpublic.fr/", target: :blank do
             %img.user-image{ :src => image_url("landing/users/cndp.jpg"), alt: "Commission Nationale du Débat Public" }
         %li.user
-          %a{ :href => "https://www.iledefrance.ars.sante.fr/", :target => "_blank " }
+          = link_to "https://www.iledefrance.ars.sante.fr/", target: :blank do
             %img.user-image{ :src => image_url("landing/users/ars-idf.jpg"), alt: "Agence Régionale de Santé d'Île-de-France" }
         %li.user
-          %a{ :href => "http://www.franceagrimer.fr/", :target => "_blank " }
+          = link_to "http://www.franceagrimer.fr/", target: :blank do
             %img.user-image{ :src => image_url("landing/users/france-agrimer.jpg"), alt: "FranceAgrimer" }
         %li.user
-          %a{ :href => "http://www.rhone.gouv.fr/", :target => "_blank " }
+          = link_to "http://www.rhone.gouv.fr/", target: :blank do
             %img.user-image{ :src => image_url("landing/users/prefecture-rhone.jpg"), alt: "Préfecture de la région Rhône-Alpes" }
         %li.user
-          %a{ :href => "http://www.lillemetropole.fr/", :target => "_blank " }
+          = link_to "http://www.lillemetropole.fr/", target: :blank do
             %img.user-image{ :src => image_url("landing/users/mel.jpg"), alt: "Métropole Européenne de Lille" }
 
   .landing-panel.cta-panel
@@ -196,6 +196,6 @@
           %p.cta-panel-explanation Notre équipe est disponible pour vous renseigner et vous aider
         %div
           = link_to "Contactez-nous",
-            "mailto:#{t("dynamics.contact_email")}?subject=Question à propos de demarches-simplifiees.fr",
+            "mailto:#{t("dynamics.contact_email")}?subject=Question%20à%20propos%20de%20demarches-simplifiees.fr",
             class: "cta-panel-button-white",
             target: "_blank"