# What are the best webinar platforms with proven uptime and stability based on reviews from companies hosting 500+ attendees monthly?

<p class="elv-tracking-normal elv-text-default elv-font-figtree elv-text-base elv-leading-base elv-font-normal" elv="true">Running webinars for hundreds of attendees makes <a class="a a--md" elv="true" href="https://www.g2.com/categories/webinar">webinar platforms</a> stability a much bigger issue than feature count. A registration page can be great, but it matters less if the live session lags or drops once attendance climbs.</p><p class="elv-tracking-normal elv-text-default elv-font-figtree elv-text-base elv-leading-base elv-font-normal" elv="true">I checked the <strong>G2 Grid report for Webinar</strong> and then focused on reviews mentioning large audiences, performance, reliability, and live-event stability. One limitation: the review data rarely states an exact <strong>500+ attendees every month</strong>, so these are the closest review-backed signals from high-volume or large-event users.</p><p class="elv-tracking-normal elv-text-default elv-font-figtree elv-text-base elv-leading-base elv-font-normal" elv="true">A few stood out:</p><ul>
<li>
<a class="a a--md" elv="true" href="https://www.g2.com/products/webex-events-webinars/reviews"><strong>Webex Events &amp; Webinars</strong></a><strong>:</strong> One enterprise reviewer hosted an event with almost 500 registrants and said the app performed throughout the day, though they did encounter livestream issues.</li>
<li>
<a class="a a--md" elv="true" href="https://www.g2.com/products/livestorm/reviews"><strong>Livestorm</strong></a><strong>:</strong> Reviewers describe large-scale presentations as smooth and interactive, although one enterprise user says performance can slow and wants stronger support beyond 3,000 live attendees.</li>
<li>
<a class="a a--md" elv="true" href="https://www.g2.com/products/zoom-events-and-webinars/reviews"><strong>Zoom Events and Webinars</strong></a><strong>:</strong> Users running large virtual events repeatedly mention reliable performance, smooth presentations, and familiar attendee experiences.</li>
<li>
<a class="a a--md" elv="true" href="https://www.g2.com/products/webinargeek/reviews"><strong>WebinarGeek</strong></a><strong>:</strong> Reviewers call out smooth browser-based performance with little noticeable lag or delay, alongside straightforward live-session controls.</li>
<li>
<a class="a a--md" elv="true" href="https://www.g2.com/products/contrast-contrast/reviews"><strong>Contrast</strong></a><strong>:</strong> Marketing users mention smooth hosting and dependable webinar execution, with setup and live delivery working consistently.</li>
</ul><p class="elv-tracking-normal elv-text-default elv-font-figtree elv-text-base elv-leading-base elv-font-normal" elv="true">The interesting part is that “stable” doesn’t always mean flawless. At higher attendance levels, livestream delay, browser performance, and production setup start showing up alongside outright reliability.</p><p class="elv-tracking-normal elv-text-default elv-font-figtree elv-text-base elv-leading-base elv-font-normal" elv="true">For teams regularly hosting 500+ attendees, which platform has held up best during peak sessions? Have you run into lag or livestream failures only at certain audience sizes?</p>

##### Post Metadata
- Posted at: 9 days ago
- Author title: Marketer
- Net upvotes: 1


## Comments
### Comment 1

&lt;p&gt;Zoom Events has held up for us even past the 500 mark without anything dropping mid session. The bigger stress test for us wasn&#39;t attendee count though, it was how many people had their video on during breakout rooms.&lt;/p&gt;

##### Comment Metadata
- Posted at: 8 days ago
- Author title: Marketing Executive





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