| time portal | Noun phrase. In Web analytics, a time portal is a special type of hidden door (q.v.) whereby the user opens a Web page in a browser and leaves the page open for hours or days before engaging in or resuming activity on the page. To most analytics software, the time portal creates two or more user sessions. Cf. Time tunnel. |
| bait and switch | Building a website to do one thing, and then switching to another after gaining site authority. For example, making a website that appears to be purely informational and helpful, and later overloading the site with ads to make money. |
| qualified traffic | When traffic is qualified, it usually means that the visit is relevant to the intended topic of the page, and therefore the visitor is more likely to find the content useful and convert. |
| link churn | The measurement of lost links within a specified time period. |
| reciprocal linking | Where two sites link to each other. Often of low quality in terms of related content and rarely now of any great SEO significance. |
