Cloudflare What CF Worker Usage Model to use?

I'm just using this CF worker script for caching guest view:
Cloudflare Workers: Edge caching anonymous requests - @mmaton

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What model should I use?
Bundled or Unbound?

After some reading here:
https://developers.cloudflare.com/workers/platform/pricing

It seems Bundled is the best model to choose specially if monthly requests don't reach 10 million.
Not so sure if I can really hit the 50 ms CPU time / invocation limit.

My workers created 1 hour ago:

 

I only targeted most visited and cacheable pages:


And I already have 4 million request for the past 4 days.


So I guess I'll be paying $15+ for workers plan.

 

For XF 2.2, this should work and cache your site for 1 hour on CF Edge (with minor edit from the code above).

HTML:

addEventListener('fetch', event => {
  event.respondWith(noCacheOnCookie(event.request))
})

async function noCacheOnCookie(request) {
  const cookie = request.headers.get('Cookie')
  // Cache for 1 hour
  const cacheSeconds = 3600
  if (cookie
    && (
      cookie.includes(`xf_session`)
      || cookie.includes(`xf_user`)
      || cookie.includes(`xf_lscxf_logged_in`)
    )) {
    const bustedRequest = new Request(request, { cf: { cacheTtl: -1 } })
    const response = await fetch(bustedRequest)

    const newHeaders = new Headers(response.headers)
    newHeaders.append('xf-cache-busted', `true`)
    return new Response(response.body, {
      status: response.status,
      statusText: response.statusText,
      headers: newHeaders
    })
  } else {
    return fetch(new Request(request, { cf: { cacheTtl: cacheSeconds } }))
  }
}

This addon is optional:
LiteSpeed Cache for XF2 - Community

But if someone can teach us how to bypass cache if some http response header is present, that addon is a must have.
I just don't know javascript coding.

 

No, it works with Nginx too.
The persistent cookie and header of that plugin are great for caching purposes.

 

cf-cache-status HIT response header should appear for guest visitors.

Check your URL here:
https://tools.keycdn.com/performance

All header should return HIT.

 

This is from XenForo

 

It's up to you

What is your HTTP routes looks like?
Try targeting those cacheable pages only.
Like what i did above.

 

CF Worker can be abused also, during DDOS attack some requests will pass through, be counted and billable :|