ZydoSEO - 4:15 pm on Jan 7, 2013 (gmt 0)

Besides using it to evaluate a site to identify broken links and the pages where the broken links are found, to find 301 and 302 redirects, and to see which external sites are being linked to (this is often useful for discovering spammers dropping links or hackers having planted links on a site)...

I also use it to get an exhaustive list of URLs for a domain (my client, a competitor, etc.) which I can then feed into a PHP tool that I wrote to request each URL and extract key elements from the resulting URLs including like <title>, <h1>, meta description, meta robots, meta keywords, etc. and write them to a CSV file so it can be loaded into Excel to be further processed and evaluated.