39

On some websites there are the following headers which consist vegur, e.g.

Via: 1.1 vegur

In here (check the headers) and also in that post.

I've tried to look for it, but I couldn't find it. Is this is generated by Varnish, some kind of reverse proxy or it's something else?

Community
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kenorb
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2 Answers2

44

It's a Heroku proxy/load-balancer adding the Via header.

See: Vegur at GitHub.

Heroku's proxy library based on a forked Cowboy frontend (Cowboyku). This library handles proxying in Heroku's routing stack.

kenorb
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Dorian
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8

The via header shows proxies and their names. In this case, the client went through a proxy called "vegur" - either its software or the computer name.

Jonathan
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