Marks the image for observation by the PerformanceElementTiming API. The value given becomes an identifier for the observed image element. Tümpel also the elementtiming attribute page. Try it Yourself » If a browser cannot find an image, it will display the value of the altbier attribute: Microsoft and DuckDuckGo have https://sexdollphoto03681.thenerdsblog.com/34342042/the-ultimate-guide-to-image