Hi there! Sorry to hear you're having trouble.

Our crawl error guide is a great place to start to find more information. You might consider running a Crawl Test on the site to validate the error, as it could possibly have been a temporary issue. If you're still seeing the error crop up, it probably warrants additional investigation.

Usually a 5XX error means an issue on your server, so you might wish to inquire with your web dev about the cause. If you're still not sure what to do, the Q&A forum is generally a great place to look for ideas in resolving some of these issues. Here are some articles that might help:

https://moz.com/community/q/issue-5xx-server-error

https://moz.com/community/q/thousands-of-503-errors

Hey there!

While Moz Pro doesn't display keyword rankings in custom timeframes, you can access your historical keyword data by heading to the Rankings section of your campaign, scrolling down to the Tracked Keyword Overview, and hitting the 'Rankings History CSV' button. That will send you a CSV of all your keyword ranking data from the beginning of your campaign! You can then use that data to construct reports for custom timeframes.

I hope that helps!

-- update: the new Moz Pro site crawler is now live, this means we can now crawl your SNI site. If you have any queries please check this post on fixing 803 errors, or reach out to help@moz.com --

Hey there!

Patrick linked to a really helpful Q&A article, but the other big cause for an 803 error would be SNI (Server Name Indication). Unfortunately I don't see the actual domain included in your question, so it's hard to be sure, but that's usually the prime suspect. Our current site crawler does not support SNI and if that is in use on your site, we will have trouble crawling it.

The good news is that we have begun to develop a new crawler that supports SNI, which is currently in beta. If you're interested in being a part of the beta testing, you can head here to sign up: http://goo.gl/forms/LCvL9Ix8JDHfbAvr1

I hope that helps! Feel free to reach out to us at help@moz.com if you want to discuss these errors in greater detail on a non-public forum.

Hey there!

Without knowing the example keywords you're looking at, it's hard to check on these, but I can certainly speak to how Moz calculates the Difficulty score! We look at the Difficulty scores of the top 10 rankings sites in the Google SERP. If you're looking at Keyword Explorer, you can head to the SERP analysis section of a keyword report to see exactly which sites those are. If you're seeing something odd with the scores, feel free to reach out to us at help@moz.com with a few keyword examples and we can take a closer look!

For more details on how we calculate our metrics, check out this article in our Help Hub.