Empty turtle response and missing resources

[pebbe]

Sometimes, this url gives "resource not found", at other times not:

https://tools.clariah.nl/alpino

Getting Turtle fails:

curl -i -H 'Accept: text/turtle' https://tools.clariah.nl/alpino

output:

HTTP/2 200 
server: nginx
date: Tue, 10 Feb 2026 19:46:13 GMT
content-type: text/turtle; charset=utf-8
content-length: 1

Only this works:

curl -i -H 'Accept: application/json+ld' https://tools.clariah.nl/alpino

[proycon]

On Tue Feb 10, 2026 at 8:50 PM CET, Peter Kleiweg wrote: Sometimes, this url gives "resource not found", at other times not: https://tools.clariah.nl/alpino

That is indeed weird behaviour. I checked the logs and don't see any 404s on that URL. I wonder if any middleware (bot/scraper protection?) is intercepting it before it reaches the actual server. I'll ask around a bit if that could be the case.

Getting Turtle fails: curl -i -H 'Accept: text/turtle' https://tools.clariah.nl/alpino output: HTTP/2 200 server: nginx date: Tue, 10 Feb 2026 19:46:13 GMT content-type: text/turtle; charset=utf-8 content-length: 1

That is indeed not right. There may be a regression bug in the turtle serialisation. I'll investigate!

Only this works: curl -i -H 'Accept: application/json+ld' https://tools.clariah.nl/alpino

Right, turtle should work similar.