Large webinar load testing and dry-run service

The specific moment someone needs this: they've scheduled a webinar for 500 people and the day before they have no idea whether the waiting screen will hold, whether late joiners will break the host's approval workflow, or whether the recording will take four hours to process afterward. 'The waiting screen for large webinars offers no options during loading time.' 'There is a brief delay of a few seconds when starting large sessions.' 'The recordings require more time to process after lengthy webinars.' These complaints share a root — nobody ran a realistic rehearsal.

Conferencing vendors don't offer load testing because it's against their interest to simulate 500 concurrent connections for free. Their support teams help you after something breaks, not before. Internal IT teams at companies running large webinars lack the tooling to spin up hundreds of synthetic participants and observe what actually happens to join latency, waiting room behavior, and host-side controls under load.

What event producers actually need is a managed dry-run service: you provide the meeting link, specify the expected headcount and join pattern (e.g., 200 people in the first 3 minutes, 300 more over the next 10), and the service fires synthetic participants against your actual room, then reports back exactly where latency spikes, whether the host approval queue becomes unmanageable, what the waiting screen shows, and whether screen share degrades. It also flags whether the moderator password prompt will appear for guests — a known recurring failure mode — and gives you a checklist of what to fix before the live event.

This is a business because large webinars recur — quarterly all-hands, annual customer conferences, recurring training events. The cost of a failed live event (rescheduling, reputation, executive embarrassment) dwarfs the cost of a dry-run service. And the buyer — the event producer or internal communications team — has budget because they already spend money on production, speakers, and promotion.

What to build

Build a managed load simulation service where event producers submit a meeting URL, a participant count, and a join timing profile, and receive a report within 2 hours detailing observed join latency percentiles, host-side queue behavior under load, waiting room rendering, and a checklist of configuration issues — powered by headless browser bots distributed across regions.

Where to start

Start with companies that run quarterly all-hands on a predictable schedule — they have a fixed recurring need, a known budget owner, and a strong incentive to pay after even one embarrassing live failure.

The hard part

Conferencing vendors may detect and block synthetic participant bots, especially at scale — you'd need to invest heavily in mimicking realistic browser behavior to avoid being rate-limited or banned before you can deliver a useful report.

How it makes money

Per-event fee for each dry-run simulation, with a subscription tier for companies running 4+ large events per year; upsell a live monitoring add-on that watches actual event join latency in real time and alerts the host.