Crawl

CAPTCHA stands for Completely Automated Public Turing test to tell Computers and Humans Apart. A long acronym, but one that simply refers to a basic test that humans can answer quite simply but computers struggle to solve. It is used as a security precaution on many sites.

301 redirect refers to a code sent by a website’s hosting server to a browser. In practice, it means you’ll get redirected to a new page when you input the old URL.

For website administrators, 301 redirects shouldn’t be used in excess, but can be a good way to deliver relevant pages to users when the original page has been removed or the content has been merged into another page.

From an SEO perspective, the old page’s ranking will transfer to the new page.

A measurement of how involved your audience is, either holistically or for an individual ad or ad campaign. Depending on the marketing channel and ad being analyzed, a variety of metrics can be considered to determine engagement rate. It is used most frequently to analyze social media marketing.