[imps] Installinmg a local copy of validator.nu

Martin Sharratt Martin.Sharratt at uwe.ac.uk
Thu Nov 17 02:41:57 PST 2011

Sorry my mistake - it's failing on http://www.w3.org/TR/1999/PR-xhtml1-19991210/DTD/xhtml1-strict.dtd 

Dodgy cut-and-paste.

I've tried to download the correct link using my browser with no success.  We've got several thousand users behind a proxy server which only presents one IP address to the world so I guess it's possible that someone in the University has been making excessive requests for DTD's.  Do W3C operate any sort of appeal system?

Martin S

-----Original Message-----
From: Michael[tm] Smith [mailto:mike at w3.org] 
Sent: 17 November 2011 10:35
To: Martin Sharratt
Cc: implementors at lists.whatwg.org
Subject: Re: [imps] Installinmg a local copy of validator.nu

Martin Sharratt <Martin.Sharratt at uwe.ac.uk>, 2011-11-17 10:14 +0000:

> I wonder if you can help.  .  I'm now trying to install a local copy of the HTML5 validator (validator.nu) .
> This is currently failing to build due to a HTTP 503 - Service 
> Unavailable error when the build script tries to download http://www.w3.org/TR/1999/PR-xhtml-19991210/DTD/xhtml1-strict.dtd.

Are you sure that's the URL it's reporting? Because that URL doesn't appear anywhere in the sources for the validator.

Is it actually reporting http://www.w3.org/TR/1999/PR-xhtml1-19991210/DTD/xhtml1-strict.dtd ?

(Notice that's "PR-xhtml1-19991210" instead of "PR-xhtml-19991210".)

> I've emailed W3c to ask whether this is a temporary error at their end 
> or if the URI is incorrect but have not had a reply as yet.
> Has anyone on the list experienced this problem and is there a solution?

If it is actually reporting http://www.w3.org/TR/1999/PR-xhtml1-19991210/DTD/xhtml1-strict.dtd
then can you please try accessing that URL in your browser and see if you can reach it? The W3C has a system to blocks access to DTDs if the requests come of IP addresses that have previously made an excessive number of requests for DTDs.


Michael[tm] Smith

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