SEOmoz’s CEO and Co-Founder, Rand Fishkin has put together a list of every website statistic publicly available that he considers valuable. The 56-point list includes:
- Technical data
- Ownership/hosting data
- Statistics/popularity data
- Search engine indexing data
- Link data
- Social tagging data
- Third-party trust metrics
- Important directory and site listings
- Press and media mentions
If you just want a quick assessment of a site’s visibility, try Page Strength, a cool tool Fishkin created with Matt Inman.