Same page twice in SERPs

Where's the duplication penalty?

[Vec_One]

I sometimes notice the same page appearing twice, right next to each other, in the SERPs. Usually, there is no apparent difference between the two versions.

Can anyone tell me how this happens? I'd like to avoid this phenomenon with my own pages.

Also, can anyone explain why duplication filtering doesn't pick up on this?

[AjiNIMC]

I sometimes notice the same page appearing twice,

Thus it says it is only a single page which appears twice, like www.xyz.com and again www.xyz.com

there is no apparent difference between the two versions.

Now I am confused, can you clarify it further.

Thanks
Aji

[Vec_One]

Aji,

What I meant to say is that it's the same page (exact same URL) appearing twice. There is the regular listing and then the indented listing right under it. Both versions appear to be identical, or near identical.

[newsphinx]

Are you sure that what you saw are the same page? The indented page is usually another page under the same domain, but a different url. If you are seeing different urls, that's amazing! :o Would you please leave a link to the Serp?

[vitaplease]

I've seen this occur for a short while in the past with differences in capitalisation of the url:

example.com/Once.htm
example.com/once.htm

[Vec_One]

I can't find an example right now, so I can't say that vitaplease's explanation wouldn't be the most likely.

Anyway, let's say it's:
example.com/once.htm
example.com/Once.htm

There's not necessarily much of a difference between the two pages. If Google penalized pages with duplicate content, wouldn't one of these pages be be toast?

[glengara]

For a certain three letter acronym, G UK is showing the same page three times, on SERP pages 1, 2 and 3.

[Crush]

we get double listings sometimes with http and https

[AjiNIMC]

Vec_One, can you send me a sticky with the keyphrase and the numbers where is occurs, then i can have a look and analyse.

This is something new.

Aji

[wanna_learn]

Vec_One

Google is certainly not able to detect well the duplicate content till now.

for 1 Keyword.. I had 30 listings which were exactly same pages except URL, those pages were coming from different Domains.

I still wonder...can we define what is dupelicate content for google?

[mrbrad]

Ever since the Florida update on November 15 I have been seeing many sites that are listed on the first and second pages of the SERPs.

This seems like an obvious bug and I am surprised Google has not fixed it yet.

Has anyone else seen this?

[rogue]

In my area a site has three listings on the first page of serps all with different urls and all point to the same exact content, verbatim.