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WordPress

Surviving the Day You Get Attention

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Caching is what makes it survivable

A cached page is served without running WordPress or touching the database. That is the difference between handling ten times the traffic and falling over at three times.

Uncached, every visitor costs you a full page build. Cached, they cost almost nothing. That single distinction decides whether a spike is exciting or embarrassing.

The checklist

  1. Full page caching enabled and verified working
  2. A CDN in front of static assets
  3. Hosting that can scale, or headroom confirmed with your host
  4. Non-essential plugins disabled for the period
  5. Uptime monitoring with someone actually alerted

What cannot be cached

  • Cart and checkout on a store
  • Logged-in member areas
  • Anything genuinely personalised
  • Form submissions themselves

Those are your real capacity limit. Know what they can handle before the traffic arrives.

Rehearse it

Load test before the campaign, at a realistic multiple of your normal traffic. Most hosts will tell you what they can handle; testing tells you what your site can.

The rehearsal is what turns a hope into a plan.

Have a fallback

Know how to put up a static page if the site cannot cope. A fast static page with your key message is better than a site that times out.

Preparing that in advance takes an hour and it is the difference between a bad day and a lost opportunity.

Frequently asked questions

How much traffic can WordPress handle?

Fully cached, a great deal. Uncached, far less. The caching configuration matters more than the traffic number.

Should we upgrade hosting temporarily?

Often the simplest answer for a known event. Most hosts allow a temporary upgrade.

What about a store during a sale?

Checkout cannot be cached, so that is your limit. Test it specifically and talk to your host in advance.

How do we know if it worked?

Uptime monitoring and server response time during the spike. Watching visitor numbers alone tells you nothing about strain.

Keep reading

Campaign launching next month?

Worth checking the site can take it. A rehearsal takes a day and prevents the obvious disaster.

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