Googler Talks About Google’s Web Rendering Service

There is an interesting tidbit you can learn about Google’s web rendering service (WRS) in the latest JavaScript SEO hangout with Martin Splitt of Google where Martin said he is “spilling the beans a little bit” by sharing that there is a layer on top of WRS that handles “prioritization, error retry, quality of service guarantees, caching and it also interacts with a crawling subsystem to actually fetch things.”

He also states that WRS ( Web Rendering Service) does not catch anything at all. Also, the UA that is mentioned in the video in regards to caching, I believe would be User Agent (UA).

I know this is NOT an actionable piece of advice but I think it’s something worth knowing when you work as an SEO.