Ugh, this wasn't meant to go on-list (obviously). Sorry! -- Timo
On Wed, 19 Dec 2018 at 18:55, Timo Tijhof <ttij...@wikimedia.org> wrote: > Hi Nuria, > > As I understand it, in Safari and Chrome with the default settings, there > is a native browser feature that, when searching through the address bar > (Google powered) by default silently starts loading the url of the top > result shown below the address bar. Maybe there's a way we opted out, but I > think it applies to Wikipedia as well. > > I'm replying privately because I didn't understand the last part of your > email, and maybe we are saying the same thing :) > > -- Timo > > > > On Wed, 19 Dec 2018 at 14:14, Nuria Ruiz <nu...@wikimedia.org> wrote: > >> > I think that's for the Page Previews feature (i.e., when a user hovers >> over a link on desktop Wikipedia) or >> > its corresponding feature in the the Wikipedia for Android (triggered >> by default on link tap) >> The code that Fran pointed to only discounts "previews" by Android app as >> we stablished that convention a while back. Page previews (hovers over >> wikipedia links that display a short popup) are not counted as pageviews at >> all at this time. >> >> >By "prefetching", I meant X's Wikipedia page shows up in the search >> results and the browser prefetches/preloads the search results but I do not >> click on X's Wikipedia page. If so, the >pageview data seem to over-count >> the number of visits to X's Wikipedia page. >> This functionality needs to be implemented by the client (it is not >> automagically implemented by the browser) and it is not implemented on >> Wikipedia. Searches trigger requests to the API, that return pageview urls, >> not pageview prefetches. You can follow these workflows on the dev tools of >> the browser you might be using. chrome://net-export/ is a new addition to >> the toolset that gives you a readable dump. >> >> >Are you saying that browser-based prefetch activity (e.g., with resource >> hinting like https://www.w3.org/TR/resource-hints/ ) is also tagged the >> same way? >> No. Browser prefetches cannot be tagged, they are initiated by the >> browser. Wikipedia's pages do not do any prefetches and or pre-renderings >> of content using those directives as far as I can see. dns-prefetches are >> done for two domains: login and meta, neither of which counts as a pageview >> cause a dns prefetch does not receive an http response. Just instantiates a >> connection and resolves TLS if any. Prefetches might be indicated by a >> standard set of headers like "Link:" in the future (this would be initiated >> by the browser) but that seems on the works. >> >> Thanks, >> >> Nuria >> >> >> On Wed, Dec 19, 2018 at 9:43 AM Adam Baso <ab...@wikimedia.org> wrote: >> >>> Fran, the preview to which you refer, I think that's for the Page >>> Previews feature (i.e., when a user hovers over a link on desktop >>> Wikipedia) or its corresponding feature in the the Wikipedia for Android >>> (triggered by default on link tap) and Wikipedia for iOS (force press) >>> apps, is that right? Are you saying that browser-based prefetch activity >>> (e.g., with resource hinting like https://www.w3.org/TR/resource-hints/ >>> ) is also tagged the same way? >>> >>> Chenqi Zhu, I think what you're suggesting is the possibility that >>> browsers might be issuing HTTP prefetches for Wikimedia-hosted pages and >>> that could inflate pageviews. I'm not sure, but have you happened to >>> observe user agents making prefetches when resource hinting ( >>> https://www.w3.org/TR/resource-hints/ ) is absent? I'm not sure how >>> often, if at all, discovery platforms like search engines are actually >>> placing resource hints into markup (which is mostly deterministic as far as >>> browser behavior) for Wikimedia content...nor to what degree there might be >>> heuristics being used for prefetching independently of any resource hints. >>> Do you have any data or field observations to help clarify? >>> >>> Browser settings allude to this sort of behavior (e.g., in Chrome, >>> there's "Use a prediction service to load pages more quickly", which is >>> described at https://support.google.com/chrome/answer/114836 ), >>> although I think without digging into browser source code it's a bit hard >>> to know for certain what's going on "under the hood". We do use preconnect >>> and prefetch semantics and the like in different contexts (cf. >>> https://phabricator.wikimedia.org/search/query/G2tr8i0YZii9 , >>> https://phabricator.wikimedia.org/search/query/.dtx_hqaj3wj , ...there >>> may be more). >>> >>> -Adam >>> >>> >>> >>> On Wed, Dec 19, 2018 at 11:00 AM Francisco Dans <fd...@wikimedia.org> >>> wrote: >>> >>>> Hi Chenqi, >>>> >>>> You can find out more about what constitutes a pageview in its Metawiki >>>> article: >>>> >>>> https://meta.wikimedia.org/wiki/Research:Page_view#Definition >>>> >>>> As you can see, one of the conditions is whether the request being >>>> examined is a preview or not, in which case it is not counted as a page >>>> view. Hope this helps! >>>> >>>> Fran >>>> >>>> On Wed, Dec 19, 2018 at 5:30 PM Chenqi Zhu <c...@stern.nyu.edu> wrote: >>>> >>>>> Hi everyone, >>>>> >>>>> I am trying to better understand the pageview data. I have a quick >>>>> question. I apologize if the question has been asked or it is so naive. >>>>> >>>>> If the web browser prefetches a Wikipedia page, does it count as one >>>>> pageview in the pageview data? By "prefetching", I meant X's Wikipedia >>>>> page >>>>> shows up in the search results and the browser prefetches/preloads the >>>>> search results but I do not click on X's Wikipedia page. If so, the >>>>> pageview data seem to over-count the number of visits to X's Wikipedia >>>>> page. >>>>> >>>>> Thanks in advance for any insight. >>>>> >>>>> >>>>> Chenqi Zhu >>>>> New York University >>>>> 44 W 4th St., Suite 10-185(B), >>>>> New York, NY 10012, U.S.A. >>>>> _______________________________________________ >>>>> Analytics mailing list >>>>> Analytics@lists.wikimedia.org >>>>> https://lists.wikimedia.org/mailman/listinfo/analytics >>>>> >>>> >>>> >>>> -- >>>> *Francisco Dans* >>>> Software Engineer, Analytics Team >>>> Wikimedia Foundation >>>> _______________________________________________ >>>> Analytics mailing list >>>> Analytics@lists.wikimedia.org >>>> https://lists.wikimedia.org/mailman/listinfo/analytics >>>> >>> _______________________________________________ >>> Analytics mailing list >>> Analytics@lists.wikimedia.org >>> https://lists.wikimedia.org/mailman/listinfo/analytics >>> >> _______________________________________________ >> Analytics mailing list >> Analytics@lists.wikimedia.org >> https://lists.wikimedia.org/mailman/listinfo/analytics >> >
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