Try the code below, explanations inside the code’s comments:
Option Explicit
Sub ExtractAfterShowOnly()
Dim WordsArr() As String
Dim i As Long
Dim MatchString As String
' use Split to read each section between "https://stackoverflow.com/" as arra element
WordsArr = Split(Range("A2").Value2, "https://stackoverflow.com/")
' loop through array
For i = 1 To UBound(WordsArr)
' if there's a match, get the text inside and exit the loop
If WordsArr(i) Like "*Show only:*" Then
MatchString = WordsArr(i)
Exit For
End If
Next i
' Use Mid function to show the string after "Show only:"
MsgBox Mid(MatchString, Len("Show only:") + 1)
End Sub
solved Copying a variable contained in cell into another cell