UPDATE: This has been resolved and the service is operating normally.
There is an ongoing DDOS attack against our service at the moment.
We're working to mitigate the issue. Currently, if your campaign is embedded into your website, some customers may have trouble accessing it.
For the time being, you can send all traffic directly to a ViralSweep URL if customers are having issues entering your campaign. You can find this URL in your dashboard by clicking the install button on your campaign and then clicking direct link and grabbing the link to the full page style.