I think I have try PPinger before on my another site. But now is different. I try to optimize my site to have a speedy google page speed, so my site have 95 of page speed in its every page. Even, I have optimized all the image manually following the google standardization (maximum compression losslessly following the google recommendation). But now, when I excited to try PPinger on that site, I install them, enabled it, and makes my site to be little slower on page speed score, that's to be 89 on average of my pages. I don't know why I care with page speed now, just let try on it, someone say that google loves speed, so I do that, at least for experimental. Now the page speed is little lowered down because of PPinger, I don't know how effective they are. So what do you think about PPinger? NB: PPinger works like makes random visitor of our site to ping our site, of course with their IP. So PPinger makes user pings our site with their natural different IP. Worth? Thank you for your opinions.