You can run this on your laptop and watch your WiFi drop in and out randomly (as other people around you download stuff, as Bluetooth devices interfere with it, etc.) It's also fun to run a speed test in another tab, and watch the latency increase 10x as needless buffers fill up and your latency-sensitive packets wait in line so your router gets a better review!
I found that tool from Ben Kuhn's blog, and at first it seemed great. But I've seen some weird behavior from it. Examples include drastically different behavior on a refresh (and not just for the 'blue' website, also for gstatic.com) and pings to Madagascar which are apparently faster than the speed of light. So now I'm somewhere between confused and distrustful.
If anyone has a detailed guide on using gfblip I'd be really curious to read it.
FYI - if you're getting a max red line on this site make sure you're not using the https version (and you may need to whitelist it in https-everywhere).
Intriguing, but: I don't think it's working as intended from my Brave browser.
After about 2 seconds of blue/green pings that seem faster than should be possible (<10ms), it goes full red.
It does work in Chrome! (Perhaps, Brave is doing some faster-fail on the probe request from the beginning, and then a cached-insta-failure after ~2 seconds?)
Had the same issue here, Brave blocks "insecure" scripts, you'll see a warning in the address bar and need to allow it to load those scripts to get it to work correctly.
My blue pings to calgary are reliably ~2000ms then ~200ms. I wonder where in the chain that pattern is originating. I wonder if it'll stay like that over time.
Agree! I wonder why the performance in Chrome is so much worse than Firefox? I constantly have ~100ms higher values in Chrome than Firefox. Maybe the author is using Firefox for development, so the test is optimized for Firefox.
Chrome also seems to show red dots every ~3 seconds for me, while Firefox shows no red dots, strange.
You can run this on your laptop and watch your WiFi drop in and out randomly (as other people around you download stuff, as Bluetooth devices interfere with it, etc.) It's also fun to run a speed test in another tab, and watch the latency increase 10x as needless buffers fill up and your latency-sensitive packets wait in line so your router gets a better review!