At least this site, www.profilactic.com, tells you like it is. Most other websites blame themselves for errors on their sites, but this one says what all the others want to say:
If you can't read the text:
"If you're seeing this page, then something went wrong. Most likely, it is totally your fault, so don't bother mentioning it to us. We only like to hear good news.
On the outside chance that it isn't your fault and the site is actually screwed up right now, we will fix it as soon as we can. Sorry for the inconvenience."
