Full page cache

Sat, 27 Jun 2026 00:00:00 +0000

See the original post on my blog for context on how to setup edge rules in Bunny so that HTML is cached on Bunny’s CDN’s points of presence.

This site’s HTML and XML are cached in Bunny’s European and North American edge endpoints. When the browser requests this page, the following scenarios happen:

A 200 is returned with the cdn-cache: MISS header if the page is not cached in the closest edge endpoint.
A 200 is returned with the cdn-cache: HIT header if the page is already cached in the closest edge endpoint.
A 304 is returned with the cdn-cache: HIT header if the page is already cached in the closest edge endpoint, and the browser has already requested it before, and the cached page has not been modified since then.

The browser is instructed to always validate with the server, no browser cache is instructed otherwise the site owner cannot have changes propagated to browsers at will.

For the sake of a counterexample, I’ve setup the rules so that /no-cache/ bypasses the rules. This page hits the origin, which is Bunny’s file storage endpoint in Frankfurt, Germany.

You might be interested in my post on how to automate cache invalidation using Rclone.

Redirects for canonical URLs

Sat, 27 Jun 2026 00:00:00 +0000

See the original post on my blog for context on how to setup edge rules in Bunny such that only the canonical URL is served for a given page.

For example, consider the about page. Without any configuration, Bunny will serve the page at the following URLs:

/about/index.html
/about
/about/

The canonical link element for the about page specifies that /about/ is the path in the canonical URL:

<link rel="canonical" href="http://localhost:1313/about/" />

You can setup edge rules that redirect /about/index.html and /about to /about/. These perform a 301 permanent redirect, taking care to preserve query parameters:

Input	Output
/about/index.html	`/about/`
/about/index.html?a=0&b=1	`/about/?a=0&b=1`
/about	`/about/`
/about?a=0&b=1	`/about/?a=0&b=1`
/about/	`/about/`
/about/?a=0&b=1	`/about/?a=0&b=1`

For the sake of a counterexample, I’ve setup the rules so that /no-redirects* bypasses the rules. As such, all three URLs serve the same page:

Tags on Static Bunny

Full page cache

Redirects for canonical URLs