Do NOT use the URL blocking tool for maintenance reasons
The URL blocking tool is intended for content that urgently need to be blocked—for example, if it contains confidential data that was accidentally exposed. Using the tool for other purposes might cause problems for your site.
- Don't use URL blocking to clean up cruft, like old pages that 404. If you recently changed your site and now have some outdated URLs in the index, Google's crawlers will see this as we recrawl your URLs, and those pages will naturally drop out of our search results. There's no need to request an urgent update.
- Don't use URL blocking to address crawl errors from your Webmaster Tools account. The blocking tool blocks URLs from Google's search results, not from your Webmaster Tools account. You don’t need to manually remove URLs from this report; they will drop out naturally over time.
- Don't use URL blocking to "start from scratch" with your site. If you're worried that your site might have a manual action, or you want to start with a clean slate after purchasing a domain from someone else, we recommend filing a reconsideration request letting us know what you're worried about and what has changed.
- Don't use URL blocking to take your site "offline" after being hacked. If your site was hacked and you want to get rid of bad URLs that got indexed, use the URL blocking tool to block any new URLs that the hacker created—for example, http://www.example.com/buy-cheap-cialis-skq3w598.html. But we don't recommend blocking your entire site, or blocking URLs that you'll eventually want indexed. Instead, clean up the hacking and let us recrawl your site. More information about dealing with a hacked site.
- Don't use URL blocking to get the right "version" of your site indexed. Many sites make the same HTML content or files available via different URLs. If you do this, and don’t want duplicates to appear in search results, review our recommended methods of canonicalization. Don’t use the URL tool to block the URLs you don’t want in search results. It won't keep your favorite version of a page; instead, could remove all versions (http/https and www/non-www) of a URL.