Strange link checking behaviour

Maybe it is just the link checker or...?

[punisa]

Hi everyone !

I checked my site for bad links on multiple link checking tools, one surprised me though. Over at [one link checking site] I checked my site and got a huge amount of 404 errors.

This is the scoop:
My articles are formatted like this:
www.example.com/newscategory/subcategory/145/article_title.html

Of course "145" is the article ID number that gets pulled out of DB.

Anyways the link checker found these to be ok:
www.example.com/newscategory/
www.example.com/newscategory/subcategory/
www.example.com/newscategory/subcategory/145/article_title.html

BUT it als somehow found this:
www.example.com/newscategory/subcategory/145/
which is logically 404 as this address doesn't exist.

There are no links which would point to this.
Once again I got these results only from this particular link checker, but seeing all those 404's spooked me out, what if Google sees it like that as well?

Hope you can give me some advice, thanks a lot folks : )

[edited by: phranque at 7:09 am (utc) on April 24, 2008]
[edit reason] examplified urls [/edit]

[bwnbwn]

Looks like to me the link checker is pulling the links faster than the db can send them to this checker thus some are getting cut off.

May I ask have you set up an account in Google and use the webmaster tools there. It would be a big help if you did then you will see if Google does see the 404's.