And the potential weighting of those sub-signals...
The weighting of each sub-signal isn't known & probably never will be. But we can review the power of each sub-signal being used now to estimate the power of the larger signal. Ready?
Mobile popup algorithm - Weak
In 2017 Google rolled out an algortihm that demotes pages in the mobile search results that utilize popups or interstitials. Unfortunately, it has proven to be weak.
Next up, HTTPS: From a rankings perspective, Google has explained many times that HTTPS is more of a tiebreaker. Google's John Mueller even covered that in a recent video on HTTPS.
Google's John Mueller: "The ranking boost for HTTPS is quite small."
Google's mobile-friendly algorithm rolled out in 2015 and was enhanced in 2016. But, it's still only one ranking factor of many. Quality and relevance still win, so pages can still rank well when not mobile-friendly (especially for brand or navigational queries).
Safe Browsing: Visual Impact
Currently, when Google detects security issues like malware, dangerous downloads, etc., urls will be labeled in the search results & browsers can present an interstitial. But, it will contribute to the Page Experience ranking signal in 2021.
In May of 2020, Google announced Core Web Vitals, which are several important metrics from a performance standpoint. They will be factored into the Page Experience Signal once it launches. They currently include three metrics:
Page Speed has always been a lightweight signal. Google has confirmed this several times, with the latest confirmation in a mythbusting video with Martin Splitt and Eric Enge.
Google has explained that both the Page Experience Signal and Core Web Vitals will be updated annually. That's when new user experience signals and/or new core web vitals could be added, removed, etc.
Google explained the Page Experience Signal will roll out in mid-June 2021 (& fully in August 2021). Google is also working on an icon in the mobile search results indicating a strong page experience.
Based on how the sub-signals work now, signs point to low impact. Google has also explained content is still king & pages that provide the highest-quality & most relevant content will still rank well (even with low Page Experience scores.)
In closing, the new Page Experience Signal will roll out in May of 2021. The power of it is unknown, but it will need to have teeth to be taken seriously. To learn more, read my post on Semrush about the signal.
Learn more about Glenn Gabe of GSQi.