Daniel Stenberg, photographed in 2021

I’m Daniel Stenberg, an internet protocol geek and developer of network related open source projects. I live and work in Sweden. daniel.haxx.se is my site and I post what I feel like.

I write about all sorts of projects, related to both spare time and professional things but also things I think are fun or upsetting or just subjects I feel like sharing with my friends and readers.

Open source, networking and associated technology are primary interests of mine. And of course a lot I write about is curl related, because curl is a big part of my life, both on and outside work hours.

Independence plea

I do not accept compensation for posting things on my blog. I will not endorse your products nor write about you or your brands unless you’ve done something cool or fun or interesting that makes it fun to mention. And then I write about them on my own terms without any compensation.

A personal take

I don’t speak for my employer or organizations I work with. I speak for myself.

No guest posts

This is my own personal blog. I will not accept any “guest posts” here, not for compensation and not for any “good cause”. You can stop asking.


There is an RSS feed for the main blog.


All text content on daniel.haxx.se/blog is licensed under the Attribution-ShareAlike 4.0 International (CC BY-SA 4.0) license.

Thanks to

Fastly, for hosting this site.

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tech, open source and networking