Re: no mailing list hits in google

From: Alvaro Herrera <alvherre(at)2ndquadrant(dot)com>
To: Magnus Hagander <magnus(at)hagander(dot)net>
Cc: Andres Freund <andres(at)anarazel(dot)de>, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, Merlin Moncure <mmoncure(at)gmail(dot)com>, PostgreSQL WWW <pgsql-www(at)lists(dot)postgresql(dot)org>
Subject: Re: no mailing list hits in google
Date: 2019-08-29 13:32:35
Message-ID: 20190829133235.GA22661@alvherre.pgsql
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On 2019-Aug-29, Magnus Hagander wrote:

> Maybe Google used to load the pages under /list/ and crawl them for links
> but just not include the actual pages in the index or something
>
> I wonder if we can inject these into Google using a sitemap. I think that
> should work -- will need some investigation on exactly how to do it, as
> sitemaps also have individual restrictions on the number of urls per file,
> and we do have quite a few messages.
>
> > Why is that /list/ exclusion there in the first place?
>
> Because there are basically infinite number of pages in that space, due to
> the fact that you can pick an arbitrary point in time to view from.

Maybe we can create a new page that's specifically to be used by
crawlers, that lists all emails, each only once. Say (unimaginatively)
/list_crawlers/2019-08/ containing links to all emails of all public
lists occurring during August 2019.

--
Álvaro Herrera https://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services

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