I made a revised “v1.38b” with alternative cache refresh delays of 2, 4, 6, 8, 12, and 24 hours. Two hours caused occasional google API errors (too many transactions per day), so I’m now testing four hours. My site has about 1,500 posts. Most posts have 4- to 5-digit counts, and only a handful get into 6-digits. I don’t know what causes the google errors, i.e. whether the count values matter, or just the number of lines in the downloaded list. If four hours seems solid for a few days, I’ll probably change the options to be finer grained, such as 2, 3, 4, 5, 10, 24 etc. I’ll report back after I’ve got it under control. Thanks again for your great plugin and excellent support!