For multiple subdomains:
subfinder -dL subdomains.txt -all -silent | httpx-toolkit -td -sc -silent | grep -Ei 'asp|php|jsp|jspx|aspx'
For single domain:
subfinder -d example.com -all -silent | httpx-toolkit -td -sc -silent | grep -Ei 'asp|php|jsp|jspx|aspx',