need to change <h1> text of a landing page dynamically.. and take the value directly from the url

need to change <h1> text of a landing page dynamically.. and take the value directly from the URL.

Like "http://unbouncepages.com/free-consultation52/?x="best+marriage+counseling+in+india
"http://unbouncepages.com/free-consultation52/?x="best+relationship+counseling+in+india

so here in landing page HTML's <h1> </h1> automatically changed based on which URL will be clicked

if this URL is clicked "http://unbouncepages.com/free-consultation52/?x="best+marriage+counseling+in+india"
then <H1>Best Marriage Counseling in India</H1>