SEO Question - Are 503/504 errors an issue?

[KyleEaves]

Lately I've noticed more and more 503/504 errors being flagged in my MOZ reports. One week I had over 1300 errors show up. I checked Google Webmaster Tools and Bing Webmaster tools and noticed they were showing up in there too, although not near as many (50 or less per day). I contacted my hosting company about it and they said these were normal and that it was due to one nameserver reaching capacity, but that there was a backup nameserver that kicks in. I've seen one or two of these errors show up before, but never more than one or two a week. Is this something I should be concerned about?

[LesleyPaone]

I personally would say and a pretty major one. The issue is that your site is going down more than likely when it is crawled.

As far as what the hosting company that is more than likely the case, but that does not make it acceptable. I would either move hosting companies, host your name services somewhere else, or have them move you to a different cluster.

[CleverPhD]

Agree with Lesley.  1300 is excessive, and even 50 sounds like a lot to me.  Do you see any in Search Console?  Would be interesting to see if this were corroborated by Google seeing similar.

[KyleEaves]

Thank you for the responses. I figured it can't be a good thing, but they made it sound like it wasn't impacting user experience because the switch to the available nameserver was immediate. It still seems to me that if Google Search Console is flagging 503/4 errors daily, as well as Bing WMT, there may be an issue. If it were only Bing, Google or MOZ I wouldn't be as concerned. Heck, I even ran a ScreamingFrog scan last night and got a handful of 504 errors. Going to be reaching out to them today to see about a fix. Thanks for your replies.