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49€, paid once, for one storefront domain — forever. There are no subscriptions, no renewals, no tiers and no seat counts. One payment covers every system the extension ships — page cache, query cache, assets, images, firewall, warmer, database tools — on that domain, for as long as the store runs it.

Yes — 7 days, and there is nothing to sign up for and no card to enter. Each storefront domain gets exactly one trial, ever, so reinstalling the extension or moving it to a different OpenCart install on the same domain does not start a second one. The trial is the whole product: nothing is held back for the paid version.

Nitro stops accelerating that domain. Nothing breaks — the store falls through to exactly the way OpenCart served it before you installed Nitro: same pages, same theme, same checkout, just without the cache in front. Every setting you configured is still there in OpenCart's settings table, so licensing the domain picks up precisely where the trial left off, with no reconfiguration.

Please get in touch — that message is often not about your domain at all. Our licence server limits how many brand-new trials one network address may start in a day, and a shared host puts many unrelated shops behind a single address. Once that day's quota is used, the next new domain coming from that address is told no trial is available even though it has never had one. It is a false negative, we can see it in our logs, and we can clear it for your domain by hand — so do not conclude the domain was already used.

One per storefront domain, not one per OpenCart install. Three storefronts on one codebase means three licences. They do not have to be bought together: unlicensed domains on that install are not blocked or broken, they simply run as stock OpenCart while the licensed ones are accelerated, so you can license them as you go.

No. A domain and its www twin are one licence — the host check pairs example.com with www.example.com in both directions, so whichever one a visitor lands on is covered. If you want one of the two to be canonical, Nitro's optional Canonical Domain Redirect will 301 the other to it, which also stops the cache holding two copies of every page.

Get in touch before you switch. The build you were sent is sealed to your domain, so on a new hostname it goes quiet and the store serves as stock OpenCart — no error page, no broken checkout, just no acceleration. Tell us the new domain and we will issue the licence and a build for it. Nothing is lost meanwhile: your settings stay in OpenCart's settings table and Nitro starts accelerating again the moment the right build is in place.

There is no card checkout on this site yet. Get in touch with the domains you want licensed and we will issue them and arrange payment directly. Ask for an invoice in the same message — automated invoicing and VAT handling arrive with the payment gateway, so until then invoices are issued by hand, which is no slower for you.

None. There is no telemetry, no usage statistics and no analytics of any kind — that is a product decision, not an option you have to find and switch off. The only HTTP requests the extension makes are to your own storefront: the cache warmer fetching your pages as a guest, and the background refresh of a page that has gone stale. The one outbound lookup it does make is DNS: when bot throttling is on, a visitor claiming to be Googlebot or Bingbot is verified by reverse DNS using the procedure those crawlers themselves document.