html - JavaScript: reduce Google Analytics / Yandex.Metrica to referrer and screen size -


i don't feel comfortable embedding external javascript on site kinds of tracking don't need.

what need referrer , screen size, cannot accomplished static html img tag alone.

what's standard-compliant, browser-supported , rendering-friendly way load invisible image, 1×1 gif, referrer , screen size part of url?

i'm looking generic answer, although phrase in terms of google analytics gif request parameters.

document.referrer referrer.

window.screen.width , window.screen.height screen resolution.

you can use these new image() have browser request tracking pixel. use encodeuricomponent sanitize values before appending them url.

var r = encodeuricomponent(document.referrer),     x = window.screen.width,     y = window.screen.height,     img = new image(); img.src = '/tracking.gif?x=' + x + '&y=' + y + '&r=' + r;

note on subsequent requests, cached, won't count of pageviews (although didn't wanted this). desirable behavior since you'd implicit unique visitor tracking. circumvent caching, however, add current timestamp via new date().gettime(); additional parameter.


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