Canonical – The source of the original page when multiple pages have very similar content.


Captcha – A challenge/response test to reduce spam. Usually asking people to type in the characters they see in an image or solve a simple math problem.

Cascading Style Sheets

Cascading Style Sheets (CSS) – A web language used to apply styles to web elements such as font size, colour, background &...


Citation – Mention of your business name or address on another webpage, with or without a...

Click Through Rate

Click Through Rate (CTR) – The percentage of users that saw an advert compared to how many clicked it. If the ad was seen 100 times and clicked on 40 times, you would have a 40% click through...

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