===Testing BEFORE the site is online===
  - check the DNS (terminal: dig domain.com ANY, e.g. dig teutschaus.it ANY), check A-Record and MX-Record. When MX record points to our server configure E-Mail-Adresses BEFORE changing the A-Record. In case the NS-Server is external make sure the contact is available to change the DNS A)
  - save the old version of the site
  - menu points (click and check the path in all languages)
  - check all the edit buttons on the blocks (the pencil icons) that they work correctly
  - check external links with link-check tool (valuations, themes, partner)
  - social links and share buttons(links etc.)
  - check the content(comparing all languages available)
  - picture galleries (swipe, size, display, zoom) 
  - check padding, editor (font styles, spaces, margins, padding, list style bullets for ordered and unordered lists etc.)
  - create .csv file, generate .htaccess, insert it in the htaccess
  - insert the double-opt-in and opt-out newsletter tool of cleverreach and test it
  - check title tags and meta descriptions
  - w3c check: https://validator.w3.org/ (Alt+Shift+V in Firefox with Webdeveloper Toolbar)
  - check MTS Impressum/colophon and footerlink produced by MTS
  - check privacy information and cookie bar and link.


===Check AFTER the site goes online:===
  - check the tracking (event and conversion)
  - test 301 redirects with google site search and google webmaster tools (search console)
  - check the email form (validation and send to customer, who has to **answer** the sent email)
  - check the booking form (calendar, date picker, offer sidebar, S-MTS widget, (Buchungsstrecke)
  - page speed: test in pingdom tool
  - search console: indexing, insert sitemap.xml,