Forum Moderators: Robert Charlton & goodroi
I had a similar problem last August / Juli. I received a duplicate content penalty and the affected pages went supplemental.
I tried to fix the problem with a proper 301, modified sitemaps, changed interlinking, noindex tags etc etc... you name it.
Most of them are still supplemental and show a cache date from juli 05. The new pages (old ones in fact) have been read by gbot - but never made it back to the index.
Regards
itloc
How old is the site?
How far down in the structure are the pages that are tagged as Supplemental?
What portion of those pages comprise a template?
What percentage of template is there to actual content?
Can the same pages be browsed to using different URI queries? (Duplicate Content)
If the site is less than a year old, the Supplemental may be temporary.
With Google's current state, I wouldn't rely on any of the data presented using advanced search queries, really I wouldn't. It's an absolute mess.
I had the same listings accidentally avaliable in 2 language sections of my website. Lets assume english and italian. One english widget page was available first in english and later in italian. The widget description was the same - but the navigation around it was either in english or italian.
The original english page was dropped (supp) and has been replaced with the italian page. When I discovered the error I redirected the italian detail page back to the english page - and it worked for some pages. Still I assume that there are thousands of pages still supplemental.
Nevertheless - most of the wrongly indexed italian detail pages dissappeared ... but the original pages (in english) are still supplemental.
Nasty...
itloc
Would it be bad to redirect supplemental pages to a new url, or just all good pages. I was thinking about just redirecting good pages and 404'ing pages that are supplemental. I'm afraid if I 301-redirect supplemental pages, the new pages may also go supplemental?
Redirect at domain level; let the whole site go. You will not gain anything by doing it page-by-page.
If those pages were supplemental, the new site will almost certainly go the same way, 301 cannot change Google's views on your pages; it can help preserve rankings - not improve them (though some may disagree).
Do the 301 if you are changing domains. As a quite separate operation, try to work out why the pages are supplemental, and deal with that. It's two issues, I don't think that fixing one will affect the other.
G has picked up a internal page from the new url and it is at #16, the old site which was 301'd to new, hung on until Sunday at #9 and has since disappeared.
Y was the first to pick up the 301'd destination and has the new site at #7 - picked it up on the 15th after change made on the 11th
M has old site internal pages at #2, #7, #17, and #32, I did see the new site peek in at #48 on Friday but it has since disappeared.
And A (Ask) still has the old site at #1
Y shows indexing most of the site, M has the entire site indexed, A has non, and G has only indexed 2 internal pages.
Site has G adsense on the pages.
Information only - like I said earler - I dont make my living on the web but it might prove helpful to those of you who do.
Well for those non believers in the sandbox here is one for you. See earlier entries for what I did.
In Google - 301 site to new domain, and old, has completely disapeared although the new URL ranks #1 for allinurl, #2 for allintitle, and #2 for allinachor.
In Yahoo, who claims they have trouble with 301's - the new site is #7. Down from #1 on old URL.
In MSN - new site has a back page at #1 for 3 word term.
And in A - old URL has fallen to #4 and new url has yet to be indexed.
So if you plan to do a 301 and do it right, as far as Google is concerned, the age of the new URL appears to be a deciding factor in what happens to your ranking.