Browser refers to the program a website visitor is using to view the web site. Examples include Safari, Firefox, Google Chrome, Opera, and Internet Explorer.
The back-end of a website is the part hidden from view of regular website visitors. The back end generally includes the information structure, applications, and the CMS controlling content on the site.
Backlinks are links from other sites back to your own. They’re sometimes also referred to as “trackbacks” (especially on blogs). Backlinks have a huge impact on your sites search rankings. Lots of backlinks from high-ranking sites can greatly improve your search engine results, especially if those links use keywords in their anchor text.
Bandwidth can refer to two different things: the rate at which data can be transferred or the total amount of data allowed to be transferred from a web host during a given month (or other hosting service term) before overage charges are applied. It is generally referred to in term of bits-per-second (bps), kilobits per second (kbs), or other metric measurements. Lower bandwidth internet connections (such as dial-up) mean data loads slower than with high bandwidth connections (like cable or fiber).
Below The Fold
This term is a carry-over from newspaper publishing days. In newspaper terms, “below the fold” means content was on the bottom half of the page (below the physical fold in the paper). In web design terms, “below the fold” refers to the content that is generally going to be below the point first viewable to the average website visitor in their browser (in other words, viewers would have to scroll down to see the content).
A website’s bounce rate is the percentage of people who leave the site from the same page they entered the site, without clicking through to any other pages. This can be a good indicator of how good a website’s navigation is, as well as an indicator of the quality of the site’s content (a very high bounce rate doesn’t bode well for either of those things).
Breadcrumbs are the bit of navigation elements that generally appear near the top of a give web page that show you the pages and subpages the appear before the page you’re on. For examples, on a blog, the breadcrumbs might look something like: Home > Category > Year > Month > Post (or they might be a lot simpler that that). The breadcrumbs term comes from the fairy tale “Hansel and Gretel.”