SiteShow appears to be using the WOT service to find the Internet Reputation of a site. Over at the WOT website, they explain what these terms mean -
Trustworthiness reflects the overall trustworthiness of a website: Do
you consider this site safe to use? Does this site deliver you what it
promises? Do you trust the content of the website? A poor rating may
indicate Internet scams, identity theft risks, credit card fraud,
phishing, viruses, adware or spyware. The site may contain annoying
advertisements, excessive pop-ups or content that makes your browser
crash. A poor rating may also indicate that the site's content is not
Vendor Reliability tells you whether the site is safe for buying and
selling or for business transactions in general. An “excellent” rating
indicates superior customer service, timely delivery of products or
services and overall customer satisfaction. A "poor" rating indicates
possible fraud or a bad shopping experience.
your personal identity and data. For example, does the social
networking service you use give you the means to determine what is
public and what remains private? Does the site have opt-in privacy
options? A "poor" rating indicates concern that your data may be sold
to 3rd parties, be stored indefinitely or be turned over to law
enforcement without a warrant, etc.
Child safety indicates if the site contains age-inappropriate
material. This includes mature content meant for adults: Content
depicting nudity, sexual content, violence, vulgar or hateful language
or content that encourages dangerous or illegal activities.
I wonder if the above factors can really be measured and the results of the reputation service can be totally relied upon.
Here is a snapshot of StatShow's rating of itself -