What we, as designers, usually do? We design websites, buy domains for them, host them on one of the fastest web servers. Then we optimize the site so it loads faster even own slower connections. To make it easily discoverable in search engines, we spend hours learning and applying SEO techniques. We even add a good translation plugin to our CMS scripts so people from different countries can be able to translate the site content for their own needs.
That’s for our normal content — the content that is shown to visitors when your site is in good condition. But what about such a situation when you need to put the site down for maintenance? What do you show your visitors/users during the maintenance period?
Are your error messages or temporary site-maintenance landing pages really understandable by your global user base?
Fix ’em, if they aren’t.