Chrome-Lighthouse (Google Page Speed Insights) user agents are now Chrome-Lighthouse https://developers.google.com/speed/pagespeed/insights
Chrome-Lighthouse (Google Page Speed Insights) user agents are now Chrome-Lighthouse
https://developers.google.com/speed/pagespeed/insights

Full User Agents
"Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/74.0.3694.0 Safari/537.36 Chrome-Lighthouse",
"Mozilla/5.0 (Linux; Android 6.0.1; Nexus 5 Build/MRA58N) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/74.0.3694.0 Mobile Safari/537.36 Chrome-Lighthouse"

prerender/prerender_rails