Real-time sites

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Just a heads-up, and this might be uncontrollable and/or intentional/by-design, I don't know. If you go to filehippo.com and one of the new Comments tabs (you'll have to uncheck Disqus bug to view comments, btw), you'll see Disqus has a "real-time" refresh update script in effect. I notice when it's on the Ghostery cloud bubble also flashes on then off, then reappears again at regular intervals. Perhaps Disqus update triggers this. I know a few sites use real-time scripts now, such as YouTube, not sure if the frequency which the bubble appears can be controlled per manual refresh. Thanks.