It seems like there’s a problem with the CDN SSL certificates on the Dashboard page. Notice the styling problems outlined in red.
What browser, browser version and OS are you on?
Firefox 57.0.1 on Linux Mint 18 is fine here.
I’m using Chrome 63.0.3239.108 (Official Build) (64-bit) on Linux Mint 18.2. I’ve tried logging out of Chrome and resetting Chrome. The dashboard also looks broken in Incognito Mode. Nothing I’ve tried fixes it.
I tried creating a different account in Incognito Mode with Google Auth, still no joy…
Firefox 57.0.1 looks OK. My Chromebook looks OK. Not sure what to say, I never use Firefox.
It looks like the Material Icons font is not showing correctly on CircleCI on Chrome on my computer. It must be a font problem on my computer. I plan to do a clean install over the break, so maybe that will fix it…
Thanks anyway. 
There’s a URL in those errors about Symantic PKI certs - what does it say? Perhaps the Google/Chrome folks are de-trusting a CA, ahead of other browsers.