Keep your website online, even when your server falters
A server that falls over, an update that restarts everything, maintenance in the middle of the day: every minute offline costs you sales and trust. If your server goes down, Klacos keeps serving the last copy of your pages. If it slows to a crawl, visitors hear about it straight away instead of being left waiting. And a new configuration goes live without cutting off requests in progress.
What a minute offline costs you
Sites rarely go down at a convenient time. The server buckles during a campaign, a disk fills up overnight, an update restarts the service at the wrong moment. Meanwhile, your visitors get a blank page, or wait for one that never loads, and leave.
The cost goes beyond that day’s lost sales. A customer who found the door shut is slower to come back, and a search engine that keeps hitting errors ends up crawling less often. So updates and configuration changes get pushed to unsociable hours, for fear of breaking something.
What your visitors see during an outage
Your server stops answering. Pages already in the cache keep being served as normal. For the rest, Klacos stops calling a server that isn’t responding, answers straight away with a page asking people to come back shortly, then retries on its own at regular intervals. As soon as your server is back, traffic resumes.
With several servers, load balancing sets the failing one aside and fails over to a standby server before it gets that far. And the better tuned your cache is, the more of your pages stay available during an outage.
Change, update and maintain without downtime
A new configuration applies in one go, without a restart and without closing open connections. An invalid file is rejected and never applied; a failed change takes nothing down, and the previous version stays in place. Updates to the service itself work the same way.
When you need to work on your server, maintenance mode shows a page that tells visitors when to come back and refreshes on its own, without calling your server. Your error pages are your own: a page hosted by the service, served even when your server is down, or a page taken from your site.
What keeps your site up
Copy served during outages
Fast answer
Zero-downtime changes
Invalid files rejected
Your error pages
Maintenance mode
Files served by the service
Unreachable origin flagged
Live sites already run through it
Live sites are already served by Klacos, and not a single request was lost while they were switched over. Keeping your site online is part of its performance and availability, alongside caching, load balancing across your servers and the waiting room.
Questions about keeping your site online
Are all pages served during an outage?
The ones in the cache, yes. A page that was never cached, or shouldn’t be (a basket, an account), can’t be served without your server: the visitor then gets a clear answer, straight away.
What does a visitor see in maintenance mode?
A page that tells them about the work, says when to come back and refreshes on its own. Your server isn’t called in the meantime.
Does an update to the service take my site offline?
No. Updates apply without closing open connections, just like a configuration change.
Your next maintenance window, without a blank page for visitors
Request early access, or tell us about your site’s last outage and what it cost you.