Welcome to WebmasterWorld Guest from

Forum Moderators: Robert Charlton & goodroi

Message Too Old, No Replies

Google indexing // - is this a canonical issue?

Supplemental Results and Canonical URI's

5:22 pm on Jan 16, 2006 (gmt 0)

Senior Member from GB 

WebmasterWorld Senior Member 10+ Year Member Top Contributors Of The Month

joined:July 1, 2004
votes: 21

I have seen instances today where google has cached the same page twice - although it assumes it is different - please see the example:


It always seems to assign either the / page or the // page to the supplemental result index in every instance I have seen it.

Are these pages going to get a duplicate content penalty?

Is this a true canonical issue or am I seeing something else?

Any idea what would cause it? In the instances I have seen there is no coding error (two sites though not my own, the respective owners have checked them as thoroughly as possible). Could it be an external linking error with someone linking to the wrong uri?



9:26 pm on Jan 16, 2006 (gmt 0)

New User

10+ Year Member

joined:Dec 10, 2005
votes: 0

Hi Jez,

I've been wondering about this too. This thread may help: [webmasterworld.com...]

Since that discussion, I've seen it happen again on one of our other sites where it never occured before. It's still annoying me and I have no idea why it's happening.

So far, it hasn't caused any problems in the SERPS for those sites, but I haven't noticed these pages with two slashes actually showing up when I do site:domain.com search.

Sorry I'm not much help! It's a mystery to me too. I couldn't find any inbound or internal links that could be causing the problem.

5:49 am on Jan 17, 2006 (gmt 0)

Full Member

10+ Year Member

joined:Jan 3, 2003
votes: 0

That can be a very bad sign, IMO. Either it would cause duplicate penalty or not, you are at risk of having your ranks drop or disappear. I encountered this issue since Oct 05 and the return of ranking is painfully slow about few pages for the some targeted term but not universally throughout the site as before.