Attribution model
A rule or set of rules that defines the principle of distributing value among the interaction points in a conversion path.
wiki
CTR (Expected CTR)
Click-through rate (CTR) is a metric in online advertising that measures the percentage of users who click on an ad after seeing it. It’s calculated by dividing the number of clicks by the number of impressions (times the ad was displayed).
search/ads (yandex)
To view your adverts in the Yandex.Direct search engine, it is convenient to use a special ad search.
Rel canonical
rel canonical — is a tag that tells search engines which of the same pages are considered additional pages and which are considered main pages.
LTV or customer lifetime value
LTV is a metric that can be used to understand the degree of customer interest in a particular product/service.
What Wordstat Yandex is and what it is for
What is Yandex.Wordstat and what is it for, read in this publication
Target Audience
A target audience is a group of consumers who exhibit the most active consumer behaviour in a particular community.