Tool
What will your e-shop do on Black Friday?
Enter how many concurrent shoppers you expect and see, with typical assumptions, where a standard shared plan holds up and where a managed VPS with caching does.
Response time as traffic rises
An estimate based on typical assumptions for a WooCommerce e-shop — not a measurement of your own site. Real numbers depend on plugins, the theme and the configuration. Want certainty? Send us your site.
Why the cart “hangs”
The problem isn’t speed, it’s workers
Every dynamic request — adding to cart, checkout, applying a coupon — occupies a PHP worker for as long as it lasts. A standard plan has only a few. When they fill up, the next requests are queued — and after a while the server responds with 504 Gateway Timeout.
The sneaky part: it happens exactly when you have the most buyers. The more successful the offer, the more certain the site goes down — and you lose the sales at the very moment you have them.
How the estimate is made — and what makes the difference
It’s a model with typical assumptions, not a measurement of your site. The mechanism, however, is real: the WooCommerce cart and checkout can’t be cached — they’re dynamic, per user.
Caching doesn’t speed up checkout. What it does is serve the catalog — most of the traffic — from memory, leaving the PHP workers free for the carts. That’s why the managed VPS holds up: not because it’s “faster”, but because it doesn’t waste workers on pages that don’t change.
The solution
Managed VPS with LiteSpeed, set up for WooCommerce
Full-page cache that understands the cart, object cache for the database, and enough workers for the peak.
Is your big day coming up?
Send us your e-shop’s address and we’ll tell you whether your plan can handle it — before you find out the hard way.