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June 6, 2005, 3:23 pm
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There is a site with chemical forums at chemistry.com. Domain is old,
as far as I know several months ago old content was removed and forums
were started. They are not indexed. No robots.txt, no NOINDEX/NOFOLLOW,
old content slowly phasing out from google index, so it was indexed
before (try "and site:chemistry.com"). 42/48 links reported depending
on datacenter. PR 0 although I think it have seen it higher after January.
URLs contain long hexadecimal digit as one of the parameters, as in
Could it be the problem?
I have no access to logs (I am only a user, not admin) so
I can't check what is going on.
http://www.chembuddy.com - chemical calculators for labs and education
BATE - Base Acid Titration and Equilibria
program for pH calculations
CASC - Concentration and Solution Calculator
program for solution preparation and concentration conversions
Re: why not indexed?
Didn't look at the site, but many forums aren't indexed fully due to
the URLs. Tends to be a session ID problem, the bots get a new URL
every time they visit a thread type page and so they never visit the
same page multiple times.
This can manifest itself as a smallish number of pages (relative to
the number of pages on the site) indexed with a tendency to be listed
as Supplemental. Which in this case is due to the lack of links to the
pages that Google can find (finds one link the day it visited, next
time the links gone because it had a session ID).
Find a mod for the forum that removes the session IDs for the search
engine spiders or remove session IDs completely.
If the problems due to the URLs per se (which is becoming less often)
use mod rewrite and have search engine friendly URLs, most forums now
have a SEO type mod for this.
Free Search Engine Optimization Tutorial