I was trying to do some SEO improvements on my website and accidentally set the
Expires header to
I changed it back after a couple of days.
Expires: -1 header be the cause of why my number of visitors has dropped from a daily average of about 3800 to 1300, quite a drastic cut. What's a best value to put for
Expires or should I leave that well alone? I've noticed a competitor does a month and so did the same now.
Will Google revisit my
Expires: -1 pages eventually or will they be forever be ignored by Googlebot? I guess that might be a guess.
HTTP/1.1 200 OK Cache-Control: no-cache, max-age=0, no-cache, no-store, must-revalidate Content-Encoding: gzip Content-Type: text/html Date: Thu, 21 Apr 2016 18:02:06 GMT Expires: -1
The following resulted in the
Expires header being set:
I also updated all the images, made them smaller in size by compressing them using ImageMagick so that they got a good "rating" with
webpagetest.org. Would that have also caused a significant drop.