The software has been developed at a time when a number of countries, Australia included, are launching vaccination campaigns against COVID-19.
The company said in a statement the waiting room was a key feature to ensure that visitors would remain on the site.
"When a visitor navigates to the website, Vaccine Edge will determine if they need to go to the virtual waiting room based on your configurations," the company said, describing the front-end of the site.
"When their turn comes up, they’ll automatically be redirected to the right place."
The back-end has controls to avoid the site being overloaded by traffic.
Vaccine Edge has a Web application firewall that automates and updates protections and protects against DDoS attacks.
The software includes a TLS certificate and uses Akamai's CDN to offload cached content and speed up non-cacheable requests.