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Editorial Team
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Asked: 2026-05-15T21:35:47+00:00

I’m thinking about adding another static server to a web app, so I’d have

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I’m thinking about adding another static server to a web app, so I’d have static1.domain.tld and static2.domain.tld.

The point would be to use different domains in order to load static content faster ( more parallel connections at the same time ), but what ‘troubles’ me is “how to get user’s browser to see static1.domain.tld/images/whatever.jpg and static2.domain.tld/images/whatever.jpg as the same file” ?

Is there a trick to accomplish this with headers or I’ll have to define which file is on which server?

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1 Answer

  1. Editorial Team

    No, there’s no way to tell the browser that two URLs are the same — the browser caches by full URL.

    What you can do is make sure you always use the same url for the same image. Ie. all images that start with A-M go on server 1, N-Z go on server 2. For a real implementation, I’d use a hash based on the name or something like that, but there’s probably libraries that do that kind of thing for you.

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