page load test

https://developers.google.com/speed/pagespeed/insights/

Custom page layouts in sharepoint 2013

http://www.learningsharepoint.com/2013/03/03/create-a-custom-page-layout-in-sharepoint-2013/

http://www.sharepointpals.com/post/How-to-Create-a-Page-Layout-(PageLayout)-with-ContentType-in-SharePoint-2013

Free ebook: Planning and Preparing for Microsoft SharePoint Hybrid

https://blogs.msdn.microsoft.com/microsoft_press/2016/04/26/free-ebook-planning-and-preparing-for-microsoft-sharepoint-hybrid/

Quick Launch and Top Navigation link programmatically – SharePoint Add In

https://sptechnet.wordpress.com/2016/04/27/quick-launch-and-top-navigation-link-programmatically-sharepoint-add-in/

hide columns

https://afrait.com/blog/hide-field-powershell-en/