| Acronym | Purchasing Metrics | |
| Full Title | Description | |
| AUT | AUThority | The reputation of the organization that produced the web page |
| AVA | AVAilability | Number of broken links contained by the Web page |
| COH | COHesiveness | The degree to which the content of the page is focused on one topic |
| CUR | CURrency | How recently a web page has been updated |
| INR | Information-to-Noise Ratio | The proportion of useful information contained in a web page of a given size |
| NST | New Search Terms | Number of new search terms on a session from a single IP |
| POP | POPularity | How many other web pages have cited this particular web page |
| PRE | PREcision | The proportion of relevance between query and results |
| REL | RELevance | The proportion of hits from each search engine that is followed by the end user |
| RST | Repeated Search Terms | Number of repeated search terms on a session from a single IP |
| SPS | Searches Per Session | The average duration of search on a session from a single IP |
| WPQ | Words Per Query | The average number of words per query |