# Cache all pages in advance

> Fill the cache with every page in the background, so first visitors get cached pages too. (Pro)

Source: https://arraystory.com/docs/ajaxpress/cache-all-pages/

Normally a page is cached the first time someone visits it, so that first visitor waits for your server. **Cache all pages** fills the cache ahead of time, in the background, so even the first visit to each page is fast.

It's on **Settings → AjaxPress → Cache**, in the status panel, once [Super Cache is deployed](https://arraystory.com/docs/ajaxpress/connect-cloudflare/).

## What happens automatically

When you first connect and deploy, AjaxPress starts filling the cache by itself: your key pages first (the home page, the blog page and your post type archives), then every published post, page and other public content. Each page is stored in the **Global layer**, Cloudflare's globally replicated copy of your pages.

## Cache everything again

Click **Cache all pages** to run the same fill at any other time: after a **Purge All**, after a big redesign, or when you've added a lot of content at once.

While it runs, the button reads **Keep caching all pages**, with the note *"Caching pages in the background - this can take a while on a large site."* You can leave the screen, or close your browser; it carries on by itself.

## How long it takes

AjaxPress caches a few pages at a time, about once a minute, and at most **900 pages a day**. That limit keeps within the free Cloudflare plan's daily allowance for the Global layer, and keeps the load on your server low.

| Site size | Roughly |
| --- | --- |
| Up to a few hundred pages | Within a few hours |
| 900 to 2,000 pages | Two or three days |
| Larger sites | 900 pages a day until done |

It relies on WordPress's scheduled tasks (WP-Cron), which run when your site gets visits. On a very quiet site, or where WP-Cron is disabled without a real cron job to replace it, it runs slower.

## Good to know

- **It only helps first visits.** Pages that visitors request are cached anyway.
- **Edits still clear themselves.** An updated post is [purged](https://arraystory.com/docs/ajaxpress/purge-the-cache/) as usual, and cached again on its next visit.
- **Excluded pages are skipped.** Anything in [Pages to never cache](https://arraystory.com/docs/ajaxpress/exclude-pages-from-the-cache/) isn't cached.

## Developers

Change the daily limit with the `ajaxpress_cf_warm_daily_budget` filter (on a paid Cloudflare plan, for example), and the pages cached right after deploying with `ajaxpress_cf_warm_seed_urls`. See [PHP hooks and filters](https://arraystory.com/docs/ajaxpress/php-hooks-and-filters/#super-cache-by-cloudflare-pro).