Pre-Launch Checklist

After providing a training / handover session, here's a quick checklist that our project team uses when launching new sites:

Check the client's account contact details are entered correctly (via Dashboard > Settings > My Account).
Run a test of the contact form to make sure enquiries reach the client's inbox.
Check mobile devices to ensure the layout and mobile menu function correctly.
Check all links and phone numbers on at least the home page, contact page, and in the header and footer. A quick way to do this, is to simply hover over links and view the address.
Run the link checker tool via Dashboard > Pages > Check Links.
Check the sitemap in Incognito mode via www.website.com/sitemap, and hide any pages that shouldn't be displaying.
For Commerce clients, ensure the notification e-mail address is set (via Dashboard > Settings > Commerce > Invoicing). Run a test purchase via the online store. An easy way to do this, is to configure the bank transfer / direct deposit payment method.

Additional Items:

Setup a favicon (more info here).
Set SEO keywords and descriptions on at least the home page.
Copy Google Tag Manager & FB Pixel from previous site.
If they're moving from an old site, ensure Page Re-directors are setup from old addresses to new (Dashboard > Website > Pages > Re-directors).
Check sizes of images and video for impact on load time and bandwidth / storage usage. The network tab of Google Chrome dev tools is a quick, easy way to check. Otherwise check out https://developers.google.com/speed/pagespeed/insights/
Clean up the colour palette (generating a design multiple times can cause this to get messy. Check by changing the background color of a section).