Send Text Message From Internet If You Send A Text Message From The Internet, Does It Count As A Text For Verizon?

If you send a text message from the internet, does it count as a text for verizon? - send text message from internet

https: / / / customer_site text.vzw.com / jsp / messaging_lo.jsp

I go there and save my number and everything is for me the limit of 500, if I send a text?