lucy24 - 10:32 pm on Jan 8, 2013 (gmt 0)
Could I do this, or is that bad manner?
In htaccess serving a 410 instead of 404:
//Custom 404 errors
ErrorDocument 404 <local-path>/error-410.html
and then a personalized 410 page with a redirection to my homepage.
If you mean 301 redirect, noooo. But if you mean that your custom 404 or 410 page includes a link to your home page: yes that's fine. Link to anything you like.
For some sites you can use the same physical page for both 404 and 410:
ErrorDocument 404 /my404.html
ErrorDocument 410 /my404.html
The user won't know, because their address bar shows the URL they originally asked for. And the search engine will get the right response, 404 or 410. It just depends on what the page looks like. But do make sure you specify something for a 410 page. Otherwise your human users will get the Apache default, which is scary and intimidating.
how can google webmaster tool tell me there are 969 url with the parameter $propiedad
Oh, that's just google. They like asking for pages with made-up parameters or made-up URLs just to see what they get. But 969 seems a bit over the top. If they're all returning 404, surely 4 or 5 should be enough to reassure google?
Moral: Do Not Try To Understand Google.