Which Webinar Platforms Support a Custom Domain? (2026 Chart)
Written by the AIVX Labs team · Published October 2026
Custom domain support for webinar platforms changes often and differs by plan. Check it directly with BrightStage AI, EverWebinar, WebinarJam, Demio, Livestorm, eWebinar, WebinarKit and BigMarker before you commit. Confirm three separate things: registration and thank-you pages on your domain, the event room and replay pages on your domain, and reminder emails sent from your own authenticated domain. BrightStage AI fits when you want an AI to write, present and sell an automated event with nobody present.
Key takeaways
- Custom domain support changes often, so confirm it in writing with each vendor for the plan you are buying.
- Ask about registration, thank-you, event room and replay pages separately, because platforms can handle each one differently.
- Reminder deliverability depends on sending from an authenticated domain with SPF, DKIM and DMARC set up.
- Use the trial period to check the domain setup screen, SSL, email sending domain and multiple-domain support.
- BrightStage AI fits when you want an AI to write, present and sell automated events around the clock with nobody present.
What does "custom domain support" mean for a webinar platform?
Custom domain support means a visitor sees your web address, such as events.yourbrand.com, instead of the webinar vendor's address. On a webinar platform that can apply to several different pages, and each one may be handled separately.
A webinar funnel usually has four page types: the registration page, the thank-you page, the event room and the replay page. A platform might put some of these on your domain and keep others on its own. Ask about each page by name.
Email is a second, separate layer. A reminder email can come from the vendor's sending domain or from your own domain after you add DNS records. That choice affects deliverability, which is why this chart treats domain and deliverability together rather than full white-labelling.
Full white-labelling is a bigger topic. It covers removing vendor branding, custom logos in the room, and branded apps. This page focuses only on where pages live and where emails come from.
Which webinar platforms let you use your own domain?
The honest answer is that you need to confirm it with each vendor. Custom domain options get added, moved between plans and changed regularly. A chart that stated firm yes/no answers would go out of date quickly. The table below shows what each product is known for and which domain details to verify.
| Product | Known for | Pages on your domain | Reminder email from your domain | Replay pages on your domain |
|---|---|---|---|---|
| BrightStage AI | AI writes, presents and sells automated events | Confirm with BrightStage | Confirm with BrightStage | Confirm with BrightStage (replays are called Encores) |
| EverWebinar | Automated, evergreen webinars; sister product to WebinarJam | Check vendor's site | Check vendor's site | Check vendor's site |
| WebinarJam | Live webinars for marketers and course sellers | Check vendor's site | Check vendor's site | Check vendor's site |
| Demio | Browser-based live and automated webinars for marketing teams | Check vendor's site | Check vendor's site | Check vendor's site |
| Livestorm | Browser-based webinars and virtual events for teams | Check vendor's site | Check vendor's site | Check vendor's site |
| eWebinar | Recorded, automated webinars with interactions | Check vendor's site | Check vendor's site | Check vendor's site |
| WebinarKit | Automated and evergreen webinar funnels | Check vendor's site | Check vendor's site | Check vendor's site |
| BigMarker | Webinars and larger virtual events, including enterprise use | Check vendor's site | Check vendor's site | Check vendor's site |
Every platform in the chart has registration pages, email reminders, replays, analytics and integrations. The domain question is about where those pieces live and how they are branded, not whether they exist.
| Related feature | BrightStage AI | Other platforms in this chart |
|---|---|---|
| Email reminders | Yes | Yes |
| SMS reminders | Yes | Check vendor's site |
| Registration and thank-you page A/B/C split testing | Yes, up to three versions | Check vendor's site |
| Webhooks and Zapier | Yes, plus Make and native integrations | Check vendor's site for current options |
| Agency commercial licence | Yes | Check vendor's site |
For more detail on the reminder and integration rows, see which webinar platforms send SMS reminders and which webinar platforms offer webhooks and Zapier.
Why does the chart say "check vendor's site" for most cells?
Custom domain setup is one of the least stable features in webinar software. A vendor may add it to a higher plan, change how DNS verification works, or extend it from registration pages to replay pages between one quarter and the next.
The chart says "check vendor's site" because a wrong yes or no would cost you more than a quick check. Ask each vendor in writing which pages and which emails can use your domain on the plan you are buying.
The same caution applies to BrightStage AI. BrightStage's published features focus on AI-run events, reminders, split testing and analytics. Confirm current custom domain options with BrightStage directly during the trial.
Which webinar pages matter most on your own domain?
Not every page carries the same weight. Prioritise the pages people see first and the pages that carry your offer.
Registration pages
The registration page is where most visitors first meet your event. A familiar domain in the address bar can make a cold visitor more comfortable entering an email address, especially when the traffic comes from paid ads.
Thank-you pages
The thank-you page confirms the booking and often asks for a second action. On BrightStage AI, the thank-you page is also where attendees can install the BrightStage app so later events open in one tap.
Event room
The event room is where the presentation runs and offers appear. If the room sits on a vendor domain while everything else uses yours, attendees see a domain switch at the most important moment. Decide whether that matters for your audience.
Replay pages
Replay pages often get shared and revisited. On BrightStage AI a replay is called an Encore, and the dashboard reports Encore revenue alongside live events. Check whether replay links can use your domain on the platform you choose.
How does a custom domain affect webinar email deliverability?
Reminder emails only work if they reach the inbox. Sending from your own authenticated domain gives mailbox providers a consistent identity to judge, rather than a shared vendor domain used by many senders.
Email authentication usually involves three DNS records. SPF lists the servers allowed to send for your domain. DKIM adds a signature that proves the message was not altered. DMARC tells mailbox providers what to do with messages that fail those checks.
Ask each webinar vendor whether reminders can be sent from your domain, which DNS records they need, and whether they support DKIM signing on your domain. If the platform sends reminders through a connected email tool instead, authentication happens in that tool.
SMS reminders follow different rules from email. Consent and messaging regulations vary by country, so check with a qualified professional before sending SMS reminders to a new audience.
How do you test a platform's custom domain support during a trial?
A trial is the best time to confirm domain claims, because you can see the real setup screens. Work through the checklist below on every platform you shortlist.
| Check | What to look for |
|---|---|
| Domain setup screen | Where you add your domain and which DNS record type it asks for |
| Pages covered | Registration, thank-you, event room and replay, listed separately |
| SSL certificate | Whether HTTPS is issued automatically for your domain |
| Email sending domain | Whether reminders can come from your address with SPF and DKIM |
| Plan level | Which plan includes the feature you need |
| Multiple domains | Whether you can use more than one domain, which matters for agencies |
Example: an agency running events for three clients would want each client's registration page on that client's domain. That agency should confirm both multiple-domain support and the licence terms before signing up.
BrightStage AI offers a 14-day full-access trial (card required for verification, cancel any time), then pricing from $59.95 per month. That trial window is long enough to run the checklist above and launch a test event.
Where does BrightStage AI fit among these platforms?
BrightStage AI Events is built for a different job from most of the platforms in this chart. An AI writes the sales presentation, script and slides, then turns it into a video with an AI presenter whose avatar and voice you choose. Events run on a schedule or on demand, around the clock, with no host present.
In the BrightStage event room, an AI answers attendee questions in the chat in real time. Polls appear during the event, and offer buttons appear at moments the host sets. The video plays like a live event, so attendees cannot skip ahead.
BrightStage organises events around the 5 I's: Invite, Isolate, Interact, Initiate, Intercept. Domain and deliverability support the Invite stage, because registration pages and reminders are the first things attendees see.
One BrightStage dashboard shows visitors, registrations, attendance, offer clicks and revenue for live and Encore events, with AI-written insights from your own numbers. Agencies can run events for clients under a commercial licence.
If you want an AI to handle the presentation and the selling, see an AI-run event at BrightStage AI. For the wider funnel picture, read AI-run webinar funnel vs traditional webinar.
How do the other platforms compare beyond domains?
EverWebinar is known for evergreen, automated replays of recorded webinars and pairs with WebinarJam for live events. Teams already using WebinarJam often look at both. The BrightStage AI vs EverWebinar comparison covers the differences in detail.
WebinarJam is known for live webinars aimed at marketers, coaches and course sellers. WebinarJam suits hosts who want to present in person.
Demio is known for browser-based webinars that combine live and automated sessions, popular with marketing teams. eWebinar is known for turning a recorded video into an interactive automated webinar. The Demio vs eWebinar page compares those two approaches.
WebinarKit is known for automated and evergreen webinar funnels. The WebinarKit vs eWebinar page compares two automation-first options.
Livestorm is known for browser-based webinars and virtual events used across marketing, sales and customer teams. BigMarker is known for webinars and larger virtual events, including enterprise programmes. The Livestorm vs BigMarker page covers how each handles automated webinars.
More side-by-side guides: every webinar platform comparison on AIVX Labs. Disclosure: AIVX Labs and BrightStage AI are both founded by Alan Magliocca.
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See BrightStage AIFrequently asked questions
Is a custom domain the same as white labelling a webinar platform?
No. A custom domain only changes the web address and, sometimes, the email sending address. White labelling usually goes further and removes vendor branding from pages, the event room and emails. Check each vendor's current features for both, because they are often sold on different plans.
Do I need SPF and DKIM records to send webinar reminder emails from my own domain?
In most setups, yes. SPF tells mailbox providers which servers can send for your domain, and DKIM signs each message so it can be verified. Your webinar platform or email tool will show the exact records to add to your DNS settings.
Should I use a subdomain like events.mybrand.com for webinar pages?
A subdomain is a common choice because it keeps webinar pages separate from your main website while still showing your brand. It also limits the DNS changes to one part of your domain. Confirm which record type your webinar platform needs before setting it up.
What should an agency check before running webinars on client domains?
An agency should confirm the platform supports more than one custom domain, that each client's emails can be authenticated separately, and that the licence allows client work. BrightStage AI offers a commercial licence for agencies running events for clients. For other platforms, check the vendor's current features and terms.
Can I switch my webinar pages to a custom domain after launching a funnel?
On many platforms you can add a domain later, but existing links in ads, emails and posts may still point to the old address. Plan a redirect or update those links when you switch. Test registration, thank-you and replay links end to end after the change.