---
description: APO once again caches HTML page requests that omit the Accept header or send a wildcard Accept value.
title: APO caches more crawler and bot traffic again
image: https://developers.cloudflare.com/changelog/post/2026-08-27-accept-header-caching/og.png?v=43e578acf2527555
---

[Skip to content](#main-content)

[View RSS feeds](https://developers.cloudflare.com/fundamentals/new-features/available-rss-feeds/) [ Subscribe to RSS](https://developers.cloudflare.com/changelog/rss/index.xml)

[Back to all posts](https://developers.cloudflare.com/changelog)

August 27, 2026

## APO caches more crawler and bot traffic again

[Automatic Platform Optimization](https://developers.cloudflare.com/automatic-platform-optimization/)

Copy as Markdown| [View as Markdown](https://developers.cloudflare.com/changelog/post/2026-08-27-accept-header-caching/index.md)| [Agent setup](https://developers.cloudflare.com/agent-setup/)

We fixed a regression where Automatic Platform Optimization (APO) stopped caching some HTML requests that did not send an explicit `Accept: text/html` header — commonly crawlers, bots, and uptime monitors. These requests were being served from your origin (`cf-cache-status: DYNAMIC`) instead of the cache.

APO now caches these requests again. No action is needed. If you added a Transform Rule to set `Accept: text/html` as a workaround, you can remove it.

For details on how APO decides what to cache, refer to [About APO](https://developers.cloudflare.com/automatic-platform-optimization/about/).

```json
{"@context":"https://schema.org","@type":"BlogPosting","@id":"https://developers.cloudflare.com/changelog/post/2026-08-27-accept-header-caching/#page","headline":"APO caches more crawler and bot traffic again","description":"APO once again caches HTML page requests that omit the Accept header or send a wildcard Accept value.","url":"https://developers.cloudflare.com/changelog/post/2026-08-27-accept-header-caching/","inLanguage":"en","image":"https://developers.cloudflare.com/changelog/post/2026-08-27-accept-header-caching/og.png?v=43e578acf2527555","dateModified":"2026-08-27","datePublished":"2026-08-27","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/"}}
```