| h6 | The heading element in HTML defines a structure for headings in a document. Starting with H1 as the most important heading, descending to H6, heading tags have been a standard part of HTML since HTML 2.0. |
| hosting migration | The process of switching from one hosting provider to another. |
| top-level domain | end of a given web address. Like .com |
| tf | Trust Flow is a metric created by Majestic that is designed to reflect on a 100 point scale the quantity and trustworthiness of links that are pointing to a website or URL. A higher score represents a site that appears to have more trustworthy and less questionable links. To calculate the ranking Majestic look at a range of seed sites and work on a process they call Majestic Trust Flow. |
| crawl friction | Noun phrase. The obstructions: inadvertent or intentional: a Website creates to efficient crawling. Examples include redirects, blocking resources in robots.txt, poor site structure, embedding too many URLs in a page, etc. |
