---
title: Rewrite blog archive URLs
image: https://developers.cloudflare.com/og-docs.png
---

[Skip to content](#main-content)

> Documentation Index  
> Fetch the complete documentation index at: https://developers.cloudflare.com/rules/llms.txt  
> Use this file to discover all available pages before exploring further.

# Rewrite blog archive URLs

Create a transform rule to rewrite the URL format `/posts/<YYYY>-<MM>-<DD>-<TITLE>` to the new format `/posts/<YYYY>/<MM>/<DD>/<TITLE>`.

Last updated Aug 24, 2026|Copy as Markdown|[View as Markdown](https://docs-durable-objects-instance-replaced-errors.previews.developers.cloudflare.com/rules/transform/examples/rewrite-archive-urls-new-format/index.md)|[Agent setup](https://docs-durable-objects-instance-replaced-errors.previews.developers.cloudflare.com/agent-setup/)

To rewrite the URLs of a blog archive that follow the URL format `/posts/<YYYY>-<MM>-<DD>-<TITLE>` to the new format `/posts/<YYYY>/<MM>/<DD>/<TITLE>`, create the following URL rewrite rule:

Text in **Expression Editor**:

```txt
http.request.uri.path ~ "^/posts/[0-9]+-[0-9]+-[0-9]+-.*"
```

Text after **Path** \> **Rewrite to** \> _Dynamic_:

```txt
regex_replace(http.request.uri.path, "^/posts/([0-9]+)-([0-9]+)-([0-9]+)-(.*)$", "/posts/${1}/${2}/${3}/${4}")
```

The function `regex_replace()` also allows you to extract parts of the URL using regular expressions' capture groups. Create capture groups by putting part of the regular expression in parentheses. Then, reference a capture group using `${<NUMBER>}` in the replacement string, where `<NUMBER>` is the number of the capture group.

Was this helpful?

YesNo

## On this page

[![](https://docs-durable-objects-instance-replaced-errors.previews.developers.cloudflare.com/_astro/logo.te5VL_aD.svg)Docs](https://docs-durable-objects-instance-replaced-errors.previews.developers.cloudflare.com/)

```json
{"@context":"https://schema.org","@type":"TechArticle","@id":"https://developers.cloudflare.com/rules/transform/examples/rewrite-archive-urls-new-format/#page","headline":"Rewrite blog archive URLs · Cloudflare Rules docs","description":"Create a transform rule to rewrite the URL format /posts/\\\u003cYYYY>-\\\u003cMM>-\\\u003cDD>-\\\u003cTITLE> to the new format /posts/\\\u003cYYYY>/\\\u003cMM>/\\\u003cDD>/\\\u003cTITLE>.","url":"https://developers.cloudflare.com/rules/transform/examples/rewrite-archive-urls-new-format/","inLanguage":"en","image":"https://developers.cloudflare.com/og-docs.png","dateModified":"2026-08-24","publisher":{"@type":"Organization","name":"Cloudflare","description":"One platform for your apps, agents, and workforce. Build, secure, and scale without managing infrastructure","url":"https://www.cloudflare.com/","sameAs":["https://github.com/cloudflare","https://www.linkedin.com/company/cloudflare","https://x.com/cloudflare"],"logo":{"@type":"ImageObject","url":"https://developers.cloudflare.com/logo.svg"},"address":{"@type":"PostalAddress","streetAddress":"101 Townsend St","addressLocality":"San Francisco","addressRegion":"CA","postalCode":"94107","addressCountry":"US"},"contactPoint":[{"@type":"ContactPoint","contactType":"Customer Support","url":"https://support.cloudflare.com/","availableLanguage":["English"]},{"@type":"ContactPoint","contactType":"Sales","url":"https://www.cloudflare.com/contact/","availableLanguage":["English"]}]},"isPartOf":{"@type":"WebSite","@id":"https://developers.cloudflare.com/#website","name":"Cloudflare Docs","url":"https://developers.cloudflare.com/"},"keywords":["URL rewrite"]}
```