Impression in GOOGLE WEBMASTER

[hemantets]

HI,
What is Impression in GOOGLE WEBMASTER ?

[Kevin Farrell]

It shows how many times the page was views in Search results, and the percentage increase or decrease in the daily average impressions compared to the previous period.

[Ravisharma]

Google web master tool show the real time traffic

[ChrisDevlin]

It give the stats that how many time your website has been viewed without visiting your websites by the users, it said to be impression. If the users clicks your website, it said to visits.

[markdev]

Impressions: The number of times pages from your site were viewed in search results,

[davidweb09]

Google Webmaster Tools help to index your website as well as to check traffic status. https://aaudrey.com/

[salman gee]

You get one impression for each time a URL from your site shows up in the SERP with the caveat that sitelinks are not counted as separate impressions. For example for the query "panther" I get two wikipedia results, so wikipedia would see two impressions for that query.
In the example you gave about the NYT we would count only a single impression for the top level URL and no impressions for the sitelinks. If you clicked on either the top level page or one of the sitelinks, we would count that as one click for the top level page.