Hi

You are correct: if a page does not exists, the noindex meta-tag
should be added to the page.
The output is pretty simple. It is a XML file according to the
Sitemaps protocol: (See: http://sitemaps.org/protocol.php )
>From sitemaps.org:

<?xml version="1.0" encoding="UTF-8"?>
<urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9";>
   <url>
      <loc>http://www.example.com/</loc>
      <lastmod>2005-01-01</lastmod>
      <changefreq>monthly</changefreq>
      <priority>0.8</priority>
   </url>
   <url>
      <loc>http://www.example.com/catalog?
item=12&amp;desc=vacation_hawaii</loc>
      <changefreq>weekly</changefreq>
   </url>
   <url>
      <loc>http://www.example.com/catalog?
item=73&amp;desc=vacation_new_zealand</loc>
      <lastmod>2004-12-23</lastmod>
      <changefreq>weekly</changefreq>
   </url>
   <url>
      <loc>http://www.example.com/catalog?
item=74&amp;desc=vacation_newfoundland</loc>
      <lastmod>2004-12-23T18:00:15+00:00</lastmod>
      <priority>0.3</priority>
   </url>
   <url>
      <loc>http://www.example.com/catalog?
item=83&amp;desc=vacation_usa</loc>
      <lastmod>2004-11-23</lastmod>
   </url>
</urlset>

The main advantage of a Sitemap plugin would be that you could filter
out all the action-pages. (For example": /index.php?p=action.register"
and "index.php?p=microcontroller&action=search"). You can see this if
you google my wiki: "http://www.google.nl/search?q=site:http://
markmarijnissen.ruhosting.nl/wiki/robot/"
However, since these action pages are not really useful, the will
never end up high in google search results, so it does not really
matter.
As a side advantage, you can set how important pages are in your site
(priority), and how often your pages change (this helps for google to
index)

If the plugin were available, i would install it, but I would not
program it myself (and I often modify code or write plugins for things
like wordpress or boltwire)- so it has a low priority. I do not know
how much work it is, but I would not bother unless there are more
people interested.

cheers,
Mark

On 27 apr, 16:56, The Editor <[email protected]> wrote:
> Sorry, I've been out a bit and gotten behind on replying to some of
> these emails.  A few thoughts below.
>
> On Mon, Apr 20, 2009 at 3:33 PM, Mark Marijnissen
>
>
>
> <[email protected]> wrote:
>
> > Hello Everybody,
>
> > I was checking out what pages Google did index, and I found out Google
> > did pretty well! This is because a Wiki is full of links to eachother,
> > making it easy for Google to crawl. However, Google also indexed some
> > pages that do not exist anymore! However, since BoltWire generates a
> > "page does not exist" page instead of a 404 error, the page stays
> > indexed in google!
>
> > Now this does not matter much for the everyday user, since this
> > useless page will never get high when somebody searches with google.
> > However, if somebody searches the site (http://www.google.nl/search?
> > q=site:http://markmarijnissen.ruhosting.nl/wiki/robot/) there are some
> > invalid results ("onderdelen" for example). These results could easily
> > be blocked by google, if the "missing page"-page contains the
> > following tag:
>
> > <meta name="robots" content="noindex">
>
> > This tag tells the Google Webcrawler it should not index this page, so
> > the next time Google indexes this page, it will be removed. (I wonder
> > if google will ever reindex the page since no page links to it, but I
> > sure hope so).
>
> > I would have added this tag myself to the "page missing" page, but I
> > do not know where to find this in the source code.
>
> So basically you want to add the noindex meta tag to a page if it
> doesn't exist? Is that correct?  It should be easy enough to do.
> Please verify, then I'll add a line to the code. Unless anyone else
> has objections.
>
> I don't know what Google would do if you later added the page, but my
> guess is, it would reindex it next time through if the noindex tag is
> no longer there.
>
> > Best regards & enjoying your software,
>
> > Mark Marijnissing
>
> > (As a side note: The indexing is a lot harder with for example a
> > wordpress blog, because the blog entries tend to get lost in archive
> > pages and dont have many links to eachother. Fortunaly, there is a
> > plugin that generates a Sitemaps XML file that lists all the URLs
> > google has to index. Google recognises this XML file. Sitemaps for
> > BoltWire still would be nice, but it should be created automatically
> > as the wiki changes - would be a nice plugin!.)
>
> If you could show me a sample of what the output is supposed to look
> like, I'll be happy to look into this. My guess is we could handle it
> very much like the rss plugin, which I've been working on lately. It
> would possibly involve a change to the core, but having that option
> available would be a nice option.
>
> Thanks for trying BoltWire. Glad you are enjoying it.
>
> Cheers,
> Dan
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