| cpc | Cost per click, the rate at which an advertiser pays for a visit to their website. |
| your money or your life | Your Money or Your Life (YMYL) is a phrase used in Googles Quality Raters Handbook, which refers to pages where PQ (Page Quality) is particularly important: because they have an impact on your current or future well-being (physical, financial, safety, etc.). |
| utm parameters | Tags added to the end of your URLs to identify the source of traffic like in the case of marketing and promotional efforts. |
| soft 404 | When a non-existent page (a page that has been deleted/removed) displays a ?page not found message or page to anyone trying to access it, but fails to return a HTTP 404 status code. In other words, the content of a web page displayed is entirely unrelated to the HTTP response returned by the server. |
| popunder | Form of advertising that creates a separate browser window, but places it under the active one so as not to be disruptive. |
