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Klacos
Waiting room

Virtual waiting room: keep your site up when everyone arrives at once

On the day of a sale or a ticket release, more visitors turn up than your server can handle: everything slows down, then payments start failing, on the very day you should be selling the most. Klacos lets in as many visitors as your server can serve and holds the rest, in order, on a page that tells them where they stand. Bots don’t get a place in the line.

Illustration: an hourglass mounted in a metal frame.
The problem

Why sites go down on the day everyone shows up

A server can only serve so many visitors at once. Beyond that, everything slows down for everyone, then the errors start: baskets empty, payments fail, and the day you’d been waiting for becomes the day nobody buys. Adding servers is expensive, hard to plan and often arrives after the peak.

Bots make it worse. Faster than any person, they arrive first and take the places your customers were waiting for. Your customers, meanwhile, remember an error page and a lost basket.

What you should expect from a waiting room: it holds the surge at the door instead of letting your server collapse, it respects the order people arrived in, and it doesn’t let bots jump the queue.

Illustration: office buildings in a city under a clear sky.
For your visitors

What waiting looks like

  1. The surge arrives

    A threshold is crossed, or the time of your sale has come. The queue opens on the whole site or on the paths you picked.

  2. The visitor waits

    They see their place in the queue and an estimate of the time left. The page updates on its own, so there’s nothing to reload.

  3. They get in when it’s their turn

    In order of arrival, or as the draw decides. Their entry stays valid for as long as you allow to complete a purchase.

  4. You follow it all

    The console shows, live, how many people are waiting, how many got in and how many left before their turn.

A fair queue

A queue with no room for bots

An ordinary queue counts sessions; it has no idea who opens them. The Klacos waiting room sits where every visit is already analysed for bot management, and on a sale day that makes all the difference. A bot that has been turned away never joins the queue, so it takes nobody’s place. One that opens session after session to hold several places is treated like any other bot. Whatever throughput your server can handle goes to real customers.

Search engines never see the waiting page. They get a temporary unavailability response telling them to come back later, so the queue leaves no trace in your search results. The waiting room builds on what performance and availability already do for your site: caching, a copy served if your server goes down, and failover to a standby server.

Illustration: a large checkpoint gantry between two buildings, over an access road.
What you get

Hold the surge without losing your customers

An entry rate

You set how many visitors get in; the rest wait, with no errors and no blank pages.

Opens on its own

The queue opens when active visitors, requests or your server’s response time cross a threshold.

Scheduled or manual

Schedule it for the time of an announced sale, or open it by hand.

Whole site or one path

The entire shop, or just the ticketing and checkout pages.

In order, or by draw

First come, first served, or a random draw among everyone waiting at opening time.

No bots in the queue

A bot that has been turned away doesn’t queue and takes nobody’s place.

A page that keeps people informed

Place in the queue, estimated wait, and a page that updates by itself.

Live figures

Places, waiting times, drop-offs and admissions, in the console.
Questions

Questions about the waiting room

Do I need to change my site?

No. The queue is set up in the console, for the whole site or one path: a threshold, an entry rate and a waiting page.

Can I open it at a set time?

Yes, for an announced sale or ticket release. It can also open by itself when a threshold is crossed, or with one click from the console.

Do search engines see the waiting page?

No. They get a temporary unavailability response and come back later. The waiting page isn’t indexed.

How long can an admitted visitor stay?

That’s up to you: you set how long an entry stays valid.

Opening early 2027

Plan your next sale with a queue kept for real customers

Request early access, or tell us about the sale, ticket release or campaign you’re planning.