Hi there! When the data from an A/B test shows a difference in AOV between the variants, how do you determine if this difference is statistically probable or not? Best Regards, Martin

Hi Mozzers! We are trying to get Googlebot to steer away from our internal search results pages by adding a parameter "nocrawl=1" to facet/filter links and then robots.txt disallow all URLs containing that parameter. We implemented this late august and since that, the GWMT message "Googlebot found an extremely high number of URLs on your site", stopped coming. But today we received yet another. The weird thing is that Google gives many of our nowadays robots.txt disallowed URLs as examples of URLs that may cause us problems. What could be the reason? Best regards, Martin

Hi all, We run an e-commerce site with a catalogue of around 5 million products. Unfortunately, we have let Googlebot crawl and index tens of millions of search URLs, the majority of which are very thin of content or duplicates of other URLs. In short: we are in deep. Our bloated Google-index is hampering our real content to rank; Googlebot does not bother crawling our real content (product pages specifically) and hammers the life out of our servers. Since having Googlebot crawl and de-index tens of millions of old URLs would probably take years (?), my plan is this: 301 redirect all old SERP URLs to a new SERP URL. If new URL should not be indexed, add meta robots noindex tag on new URL. When it is evident that Google has indexed most "high quality" new URLs, robots.txt disallow crawling of old SERP URLs. Then directory style remove all old SERP URLs in GWT URL Removal Tool This would be an example of an old URL:
www.site.com/cgi-bin/weirdapplicationname.cgi?word=bmw&what=1.2&how=2 This would be an example of a new URL:
www.site.com/search?q=bmw&category=cars&color=blue I have to specific questions: Would Google both de-index the old URL and not index the new URL after 301 redirecting the old URL to the new URL (which is noindexed) as described in point 2 above? What risks are associated with removing tens of millions of URLs directory style in GWT URL Removal Tool? I have done this before but then I removed "only" some useless 50 000 "add to cart"-URLs.Google says themselves that you should not remove duplicate/thin content this way and that using this tool tools this way "may cause problems for your site". And yes, these tens of millions of SERP URLs is a result of a faceted navigation/search function let loose all to long.
And no, we cannot wait for Googlebot to crawl all these millions of URLs in order to discover the 301. By then we would be out of business. Best regards,
TalkInThePark