Capturing group number 1 is defined but never used

Capturing group number 1 is defined but never used

Capturing group number 2 is defined but never used

The quantifier '.*' can exchange characters with '.*'. Using any string accepted by /=+/, this can be exploited to cause at least polynomial backtracking

Capturing group number 3 is defined but never used

Capturing group number 4 is defined but never used

'(www\.)?' can be removed because it is already included by '.*'. This cannot be fixed automatically because it might change or remove a capturing group

The quantifier '.*' can exchange characters with '.*'. Using any string accepted by /\.+/, this can be exploited to cause at least polynomial backtracking. This might cause exponential backtracking