Core Web Vitals:
This is the main set of metrics that are used by Google to assess user experience on the web, called the Web Vitals. The Core Web Vitals are made of three components: Largest Contentful Paint (LCP), First Input Delay (FID), and Cumulative Layout Shift (CLS).
CLS: (Cumulative Layout Shift)
Cumulative Layout Shift. This Core Web Vital measures Visual Stability, it looks at how much and how far the content on page shifts in the viewport. The CLS needs to be under 0.1 (no dimension) to be considered as good.
CMYK:
CMYK is a 4-colour printing process made up of cyan, magenta, yellow and key (black). CMYK colours in print will never appear as vibrant as RGB colours on screen because CMYK creates colour by adding colour together (making images darker) while RGB colours come from light.
CPA: (Cost Per Acquisition)
Also known as cost per action or cost per conversion. This metric measures the average amount of money you need to spend in order to acquire one customer. A cost per acquisition pricing model means you will only pay when your ad generates a desired action. The advantage of using this method is that you can choose your definition of an acquisition before the advertising campaign starts. An acquisition can be anything from a sale, to a download, to a registration, it all depends on your objectives.
CPC: (Cost Per Click)
This is the price advertisers pay for one click on their ad. We talk about CPC when referring to PPC ad campaigns. The CPC is not a fixed cost and varies depending on a number of factors such as, your ad quality score, your closest competitor's ad rank, and your maximum bid.
Read a bit more...CTA: (Call-To-Action)
Call-To-Action is vital to the philosophy of inbound marketing on a website. It’s the final step for a website visitor to make the conversion you want them to make, whether that’s contacting you, inputting their email, or buying a product. The CTA is the final push to convince them to make that last step. They are also used on social media and PPC ads to encourage interaction. In practice, a CTA is a sentence or a phrase accompanied by a hyperlink or a clickable button such as "Shop Now" or "Learn More".
CR: (Conversion Rate)
It represents the percentage of website visitors who complete a particular goal, called a conversion. Examples of conversions include: purchasing an item, submitting a form, calling your business, starting an online chat, signing up to something, downloading something.
CPM: (Cost Per Mille)
Also called Cost Per Thousand. This is a pricing model (different to CPC) whereby the advertiser pays for every thousand impressions. "Mille" is Latin for "thousands".
CPA: (Cost Per Action)
Also known as cost per action or cost per conversion. This metric measures the average amount of money you need to spend in order to acquire one customer. A cost per acquisition pricing model means you will only pay when your ad generates a desired action. The advantage of using this method is that you can choose your definition of an acquisition before the advertising campaign starts. An acquisition can be anything from a sale, to a download, to a registration, it all depends on your objectives. See Cost Per Acquisition.
CPC: (Cost Per Conversion)
Also known as cost per action or cost per conversion. This metric measures the average amount of money you need to spend in order to acquire one customer. A cost per acquisition pricing model means you will only pay when your ad generates a desired action. The advantage of using this method is that you can choose your definition of an acquisition before the advertising campaign starts. An acquisition can be anything from a sale, to a download, to a registration, it all depends on your objectives. See Cost Per Acquisition.