Website disappears from SE on a daily basis - comes back fine.

[apogeecorp]

Our main website is Top 10 SERP with google.co.uk for photocopier and photocopiers. Every morning we disappear from SERPs for Photocopiers, while Photocopier is doing fine. Several people were able to duplicate the following issue:

1. Google.co.uk -> search photocopier -> we rank Top10

2. Google.co.uk -> search photocopiers -> we do not rank in top 100

3. Click on our website from the photocopier search results

4. Google.co.uk -> search photocopiers again -> we rank Top10 (which is what we usually get. After I do this once, the problem goes away.)

Results are consistent with me using a proxy service, or being logged in / out of my Google account. Note that SEO Moz keyword history does not show anything special with these two. My link profile is practically the same and I am certain we are not experiencing the Google dance. Has anyone been experiencing something similar?

The problem happens in the morning just before regular working hours and while night traffic is low, it is by no means zero. There is one known issue, as every now and again we are unable to access our website externally. Either our web server or the DNS server gets lazy and enters a state similar to power saving mode. As soon as someone gets a remote desktop connection going, it is back up. Since we are updating our website more often, I fear that we get crawled more often and Google might record these hicups. Still, external website monitoring tools say we have 100% uptime

Any ideas would be appreciated.

[Capote]

ok, apols for assuming name - just took it from user name and products.

Will have a think and reply if anything comes to mind. There are some gurus on here who will be to the rescue soon no doubt!

[apogeecorp]

As it stands, we do not have major on-page issues with the website I mentioned (not Apogee Corp btw). Webmaster Tools show 2 minor crawl errors, and all bots are allowed to visit, with the exception of Majestic SEO. 2 folders are denied, since they are old remnants of an admin area now not in use.

Optimization issues are easy to fix, but I fear smth more sinister and hard to detect. Thanks for the answer.

[Capote]

Hi, bit of an odd one.

Anything in Webmaster Tools in Crawl Error/Stats?

Anything being blocked by robots.txt?

I'd definitely get the 'power saving' issue fixed too, shouldn't be happening in this day and age with any type of web server. If bot tries to visit site and gets lost/confused, it doesn't take long for it to move on.

Oh, btw, i'd fix your title tag on home page while you're at it, seems a bit long to me.

Good luck.

PS - presuming your site is apogeecorp your content is viewable both with and without www, so i'd fix that too by permanently redirecting one to the other, probably non-www to www.