Web Vitals is an initiative by Google to provide unified guidance for quality signals that are essential to delivering a great user experience on the web.
Core Web Vitals are the subset of Web Vitals that apply to all web pages, should be measured by all site owners, and will be surfaced across all Google tools. Each of the Core Web Vitals represents a distinct facet of the user experience, is measurable in the field, and reflects the real-world experience of a critical user-centric outcome.
The metrics that make up Core Web Vitals will evolve over time. The current set for 2020 focuses on three aspects of the user experience—loading, interactivity, and visual stability—and includes the following metrics (and their respective thresholds):
<svg>elements, or non-white
<canvas>elements. It marks the first point in the page load timeline where the user can see anything on the screen.
You can now see the ranking for all 4 metrics in our on page console Magma:
Most common questions you will encounter are:
Initially, the ads have no size, when they load, they will push down the content.
Solution 1: The publisher “reserves” the space for the ads, by adding a fixed height or wrapping the ads in containers that have a fixed height of the biggest possible height.
For example PRC_MOB_P_300v_1 can be 300×250 or 336×280, so the biggest height is 280px. You can wrap the ad div with something like this:
<div style=”height:280px;”> <!– Ad Container with fixed size –>
<div data-aaad=’true’ data-aa-adunit=’/22181265/PRC_
The downside of this solution is that if we have a 300×600 and 300×250 running on the same placement and a 300×250 is displayed, there will be some blank space. We are developing a solution to scroll withing this white space, to not be useless. Something like this: http://cdn.adapex.io/doc/
Solution 2: Stop running ads with variable sizes.
Running 160×600; 120×600 and 300×600 is ok, since all have 600px height, so it will not push down the content.
Running 300×600 and 300×250 is not ok, since the ad can push down the content if the height is 250px or 600px (especially on refresh).
If there is no content under the ad (e.g. the last ad unit of sidebar), there is no content to push, it is ok.
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