| iis | Internet Information Services, powerful Web server that provides a highly reliable, manageable, and scalable Web application infrastructure. |
| crawl | Using a third party application to search a website and collect data including pages, status codes (200, 301, 404), and SEO elements like titles and meta descriptions. |
| repeat visits | If your website is frequently visited by returning users then this can positively enhance your search engine position as this is seen as a mark of authority. If people come back for more then it likely means the site contains good quality content. |
| query space | Noun phrase. The collection of all queries and their relevant results for a set of related search expressions. eConsultancy uses an SEO treemap to depict performance within query spaces. |
| cost per action | (CPA) A method of measuring the effectiveness of online advertising. A monetary value is assigned to a specific action, which can be anything from a click to a user submitting their personal information. This structure is often utilized by affiliate marketing programs. For example, an affiliate marketer will get paid a certain amount of money every time a user clicks a certain ad. |
