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CDN CACHE WARMING · VERIFIED

Warm your CDN.
Before visitors arrive.

Preload your CDN cache so visitors can get your pages faster.
Warm important URLs, confirm cache hits, and see the difference in response time.

Get my free cache report Explore the dashboard
Free account · No credit card · Works with any CDN
FITS YOUR EXISTING STACK
Any CDN W WordPress Any public website
Warm. Verify. Repeat.
Warming reportILLUSTRATIVE EXAMPLE
yourwebsite.comPublic pages · London probe
Completed
Confirmed hits98% 98 of 100 checked pages
Median response headers84msObserved after verification
728 ms less waiting812 → 84 ms response headers · illustrative comparison
800 ms400 ms0 ms
First observationAfter warming
/MISSHIT
/articles/a-better-first-visitMISSHIT
/aboutHITHIT
Measured results. Clear cache evidence.
A clear picture of your cache. Before and after.
Public HTTPS warming works with any CDN
CloudflareFastlyAkamaiand more

Warm eligible public pages through your existing CDN. We confirm hits when its response headers expose cache status.

TAKE PRELOADING TO THE EDGE

Your server cache is ready.
What about your CDN?

Your preload plugin can prepare pages on your server. Your CDN has its own cache, which can still be empty after a purge, a new publication, or expiry. CacheCharger helps prepare that next layer.

01 · ORIGIN CACHE

Your existing preload

Prepares HTML on your server.

02 · CDN EDGE CACHE

CacheCharger

Requests public URLs through the CDN, then checks for a HIT at the observed location.

LESS WAITING. MORE OPPORTUNITY.

Faster first visits.
More room to grow.

A warm CDN cache can serve eligible pages without rebuilding them at your origin. That gives your first visitors a faster start—and your server more breathing room.

VODAFONE · A/B TEST8% more sales

Vodafone’s faster version improved Largest Contentful Paint by 31% and recorded an 8% sales uplift.

See the case study ↗
GOOGLE · MOBILE RESEARCH, 201732% higher bounce probability

Google’s model estimated a 32% increase in bounce probability as mobile load time rose from 1 to 3 seconds.

Explore the research ↗
Start with your own evidence. Inspect a URL to compare uncached and cached responses, then warm the pages that matter.Check my CDN cache

These studies measured broader page-speed changes, not CacheCharger. Your report measures response-header time; it does not forecast sales, bounce rate, or full page-load speed.

YOUR FIRST USEFUL ANSWER, FREE

Is your cache ready
for the next visitor?

Connect a website you own and start with its important public pages. Your first report shows confirmed hits, observed waiting time, and the pages that need attention.

Get my free cache report No card. No CDN API key. Ownership verification required.
  1. 01
    Connect & verify

    Use DNS, a verification file, or the WordPress connector.

  2. 02
    Check your public pages

    Choose URLs or import a sitemap. Sensitive pages stay excluded.

  3. 03
    See the evidence

    Before and after observations, with clear next steps.

01Preload CDN cache

Before your visitors arrive.

02Verify the result

A download isn’t proof of a hit.

03Keep it healthy

Catch changes that need attention.

SMALL SETUP. LASTING USEFULNESS.

From cold pages
to clear answers.

Your CDN cache warmer should do more than visit URLs.
It should tell you whether those visits helped.

01

Connect your website

Verify ownership, then discover your public pages from a sitemap or add the URLs that matter.

02

Warm and verify

We request eligible public pages through your CDN, verify cache headers, and report before-and-after response times where comparable.

03

Stay a step ahead

Set a schedule, connect WordPress updates, and review the pages that need a closer look.

PAGE DIAGNOSTIC/articles/your-latest-post
BYPASS

More visits won’t
fix a bypass.

This response is bypassing the cache.
Review its cache directives and cookies.

Response evidencecf-cache-status: BYPASS
cache-control: private
Illustrative diagnostic
EVIDENCE, NOT GUESSWORK

Understand the
pages that stay cold.

A green “crawl complete” message only tells half the story. CacheCharger separates confirmed hits from uncached, blocked, and unsuccessful requests.

  • Cache status and response headers
  • Location evidence for each observation
  • Useful guidance when caching fails
  • CSV reports you can inspect and share
How we measure results
A LIGHTER WAY TO STAY WARM

Give your cache
a little foresight.

Start with the pages that matter. Warm on a schedule or after published content changes, with sensible limits that protect your origin.

Meet the WordPress connector
W
You publish an updateWordPress sends the affected URLs
EVENT
Updates join one queueRepeated edits are coalesced
QUEUE
Public pages are verifiedResults are ready in your dashboard
RESULT
A FEW GOOD QUESTIONS

Clear from
the start.

Read the documentation

We request your public pages, then check the CDN’s response headers for a confirmed HIT. Eligible misses get up to two follow-up checks. If a page stays uncached, is blocked, or bypasses the cache, the report explains what needs attention. We stop there rather than repeatedly hitting your server. Cache rules, expiry and CDN location still determine which visitors receive a HIT.

READY BEFORE THEY ARRIVE

Your next visitor
deserves a warm welcome.

Get started for free

Free account. Three websites. 1,000 warming units per month.