If it's important for your business build your own scraper system with Python and Beautifulsoup, if it's not, you use SaaS solution like www.apify.com/
Easy to install and customize, I don't use the "Intercom button style" but a Feedback button in my menu and when customer click it's open a popup chat.
When you are offline you receive an email.
In the backoffice you can monitoring live activities.
I use tawk.to since 2 years and I'm happy with it.
I use tawk.to/ , it's free !
can't be blank
Easy to install and customize, I don't use the "Intercom button style" but a Feedback button in my menu and when customer click it's open a popup chat.
When you are offline you receive an email.
In the backoffice you can monitoring live activities.
I use tawk.to since 2 years and I'm happy with it.
110 EUR with an affiliate link (Dell computer) in 2004