?utm_source=500px.com&utm_medium=referral&utm_campaign=embed&utm_content=web
https://iso.500px.com/usa-night-sky-photos/
At e.g. the photograph above lightning bolt strikes over Albany,
Near the bottom left corner of the image there's a link to:
https://500px.com/photo/75499635/awakening-by-mike-mezeul-ii?utm_source=500px.com&utm_medium=referral&utm_campaign=embed&utm_content=web
Normal? Or maybe a side-effect of recent rework?
Thanks