Webinar no-shows: when reminders never arrive.
Some registrants never show up because your reminder never reached them: a typo, a made-up address or a throwaway inbox. This guide shows where sign-ups go wrong and how verified contacts make reminders arrive.
- Why reminders bounce
- Fake sign-ups and blocked seats
- Contacts verified at sign-up
Christian Schätzlein, Founder and developer of Sendity
3 min read
Reminder: the webinar starts in one hour
Send log for six sign-ups (example)
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Mara Klein mara.klein@outlook.de 10:00
Delivered
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Sven Ohl sven.ohl@gmial.com 10:00
Undeliverable Typo in the domain.
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Jonas Brandt jonas.brandt@gmx.de 10:00
Delivered
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Test Test asdf@asdf.de 10:00
Undeliverable Made-up address, just to get the link.
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Nina Roth n.roth@company.example 10:00
Delivered
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Kai x9k2@throwaway.example 10:00
Undeliverable Throwaway inbox, deleted after ten minutes.
Sign-ups by message. No form, no code.
Sendity is a sign-up widget for your website. Instead of filling in a form, your visitors send one short message via WhatsApp or email. Sendity checks who it came from and hands your site the name and the confirmed phone number or email address.
See how Sendity works →-
One message instead of a form Visitors tap send in WhatsApp or their email app. Nothing to type, no confirmation email to click.
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Confirmed by the message itself The contact comes from the sender of the message, so typos and made-up addresses never reach your list.
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Pay per confirmed contact Start with 1,000 free credits, no credit card. After that, prepaid packages with no subscription.
A sign-up form accepts any address. Whether it is right only shows when the reminder goes out, one hour before the start.
Typos
A missing letter or “gmial.com” is enough. The registrant waits for the access link that never comes and assumes the webinar was cancelled.
Made-up and throwaway addresses
Some people only want the recording or the slides and type in an address they never check. They count as sign-ups but will never attend.
Seats blocked by fakes
With limited seats, every fake sign-up takes a place from a real prospect. Bots that submit forms make this worse.
What a confirmation email changes
A confirmation link filters out typos, but it adds a step, often lands in spam and loses registrants who never click it.
Verifying at sign-up
With reverse OTP, registrants send a short code via WhatsApp or email. The sender becomes the verified contact, so the reminder goes exactly where the message came from.
Registered and verified in one step.
How a webinar sign-up by reverse OTP works.
Tap to register
Instead of typing name and email, registrants tap one button next to the webinar date.
Send the message
At that moment it is settled where reminders go: to exactly the number or address that sent it.
The seat is confirmed
Your page welcomes the registrant by name, and your webinar tool receives the verified contact for reminders.
Sign-up form or verified sign-up?
The difference shows one hour before the start.
| Aspect | Sign-up form | With Sendity |
|---|---|---|
| Typos | Noticed when the reminder bounces | Nothing is typed in |
| Made-up addresses | Accepted like any other | Only a real sender counts |
| Limited seats | Fakes and bots take seats | Every seat belongs to a verified contact |
| Reminders | Partly undeliverable or in spam | Go to the address or number that wrote to you |
What verified sign-ups change.
What happens when every sign-up comes with a verified contact.
Reminders that arrive
No typos, no made-up addresses. With a verified number you can also remind by SMS or WhatsApp, if the registrant agreed to it.
Seats for real prospects
Bots and throwaway addresses no longer block limited seats.
Numbers you can trust
Your attendance rate refers to real registrants, not to addresses nobody reads.
Live on your page in minutes.
Sendity runs as a compact widget on your page. Pick the path that fits your website.
Verified webinar sign-ups: common questions.
Does verification prevent every no-show?
No. People still forget or change plans. It removes the no-shows caused by wrong or fake contacts, and makes sure your reminders arrive.
WhatsApp or email for webinar sign-ups?
Email suits audiences on a computer and webinar tools that send by email. WhatsApp gives you a verified mobile number for a short reminder before the start. You choose per campaign.
Can I still use my webinar tool?
Yes. Sendity replaces the sign-up form, not the webinar tool. Your site receives the verified contact and passes it on.
What if a registrant has no WhatsApp?
They send the code by email, or by SMS if you allow it. SMS is less secure because of SIM swaps.
Keep reading.
Reviewed for accuracy in by Christian Schätzlein.
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