As discussed in this topic, several sites were down due to a server issue for about a month.  I have slowly watched some of the more popular sites gain some traffic.  I did say slowly.  I have also monitored the crawler errors in Google's Webmaster Tools.  Last week, I decided to burn one of the domain names, create a new one and 301 all traffic to that new domain.  Within three days, the new domain was already getting organic traffic.Server errors were down to about 30 (it takes a while for these to clear up in Google), and I thought that maybe I just had not waited long enough and the original domain was finally getting the traffic again.  However, I was seeing organic results with the new domain name and a significant amount of traffic (for 3 days).  For brand new domains, I have seen indexing occurring in 12 days.  On the old domain name, old URLs that I wanted to remove are 410'ed.  While server errors are clearing up, I am seeing a significant increase in Not Found errors, and wondering if it is because of this, that the old domain name was not receiving traffic?For those interested in knowing how long Google takes to clear up server errors, in October one site experienced 28,000 server errors.  It took until January 1 for that number to reach zero.
Is it better to burn old domain names and 301 to a new one for domains that experienced a high number of errors?
google search console;301 redirect;indexing;410 gone