Moz Showing 1500+ errors on my site but webmaster showing 130ish. Whats going on?

[Nicktaylor1]

This Morning when I check my moz account it said I had 1500+ high priority issues, The break down of issues were 1432 4xx Client errors, 49 duplicate issues, 31 title page missing.

but when I check my webmaster account is it only showing I have around 135 issues.

I have been monitoring is the ranking for my homepage and it's been fluctuating between appearing around the 10th page for me to not at all.

which begs the question that I'm being penalized or what is going on?

dor4 7xtd

[JacobEdward]

Did you manually check the 1432 errors? It could be pages that are not indexable by Google. Take a look at the pages and see if they are part of the index in webmaster. That's not to say you shouldn't fix them but it could be why they are so different. They are two very different tools and Moz tends to be fail safe which for us is a great mechanism.

[PremioOscar]

Consider also that Google doesn't crawl every page all the time so that could be what it is creating the discrepancy.

I usually use Screaming Frog to identify issues with the website as it crawls every page anytime you want it to

[edwardlewis]

Sounds like you have a list of issues to fix either way

[Paddy_Moogan]

Hi Nick,

It is pretty normal to see discrepancies between data from different sources. Google and Moz have different crawlers with different datasets, so it is often the case that you will see different numbers - I've never seen them match up!

I very much doubt that crawl errors like this would be causing big fluctuations in your rankings. Google have gone on record saying that crawl errors are very unlikely to directly impact rankings.

Having said that, it's still best to try and fix errors wherever possible. As pointed out below, you can use a tool like Screaming Frog to verify the data that is being show to you by Moz and Google and then go and check those pages.

I hope that helps!

Paddy