Fax tag for URL scheme

My client is requesting their fax number be correctly tagged for schema , does any know how to do this?

Here is my site Read-Only: LINK
(how to share your site Read-Only link)

See faxNumber - Schema.org Property

Hi Jeff, thanks for jumping in, yes I had found the same article via Google.
What I hoped to get from this forum post was some instructions on how to tag the link in Webflow, how do I identify the fax text link as a fax number in webflow, do I use a custom attribute?

Hope you can help, it is slightly embarrassing that I cannot give the client an answer.

Thanks Graham

You could use microdata or a script. So, the how depends on which way you want to go. There are examples of each for reference on that page. Webflow does not support blank values like itemscope on an element so custom code embeds work for the whole itemprop div element and its children. Most people resort to using JSON-LD since it does not require changing the HTML.