Python

import requests

# A simple blacklist (in production, use a real-time threat feed)
BLACKLISTED_DOMAINS = [
    "malicious.com",
    "phishing-site.org",
    "badwebsite.net"
]

def is_domain_blacklisted(domain):
    return domain.lower() in BLACKLISTED_DOMAINS

def check_website_safety(url):
    try:
        domain = url.split("//")[-1].split("/")[0]
        if is_domain_blacklisted(domain):
            print(f"ALERT: {domain} is a known unsafe website! Do NOT proceed.")
            return False
        # Optionally: Check with Google Safe Browsing API or others
        print(f"{domain} appears safe (not in local blacklist).")
        return True
    except Exception as e:
        print("Error checking website:", e)
        return False

if __name__ == "__main__":
    while True:
        url = input("Enter a website URL to check (or type 'exit'): ")
        if url.lower() == "exit":
            break
        check_website_safety(url)