After fixing Crawl Errors, how long does it take to for Moz or Google to re-crawl a website?

[cmc-interactive]

Last night I found out through Moz that my robots.txt file was blocking any crawling of my website. I fixed the issue. Now do I just sit and wait?

[DougRoberts]

Moz will crawl the site every week so you'll need to wait a few days for that to happen.

In the meantime you could try using the Moz Crawl tool to do a manual crawl. Depending on the size of your site this can take a few days so you might find it's just worth waiting for the weekly crawl. You can find the crawl tool here:

https://moz.com/researchtools/crawl-test

If you site isn't included in Google's index because it was inaccessible due to the robots,txt, then you'll want to go into Google Webmaster Tools and use the Crawl -> Fetch as Googlebot to kickstart Google crawling/indexing your site.