Check If Website Uses HTTPS Certificate in Python

Example 1: Using the `requests` Library

        
# Import the requests library
import requests

# Define the URL of the website to check
url = "https://www.example.com"

# Send an HTTP GET request to the URL
response = requests.get(url)

# Check if the response has a valid SSL certificate
if response.status_code == 200:
    print("Website uses HTTPS with a valid certificate")
else:
    print("Website does not use HTTPS with a valid certificate")
    

Output:

        
Website uses HTTPS with a valid certificate
    

Example 2: Using the `certifi` Library

        
# Import the requests library
import requests
# Import the certifi library for SSL certificate information
import certifi

# Define the URL of the website to check
url = "https://www.example.com"

# Send an HTTP GET request to the URL
response = requests.get(url, verify=certifi.where())

# Check if the response has a valid SSL certificate
if response.status_code == 200:
    print("Website uses HTTPS with a valid certificate")
else:
    print("Website does not use HTTPS with a valid certificate")
        
    

Output:

        
Website uses HTTPS with a valid certificate
    

Example 3: Using the `http.client` Library

    
# Import the http.client library
import http.client

# Define the URL of the website to check
url = "www.example.com"

# Create an HTTPS connection to the website
conn = http.client.HTTPSConnection(url)

# Try to establish a connection and get the certificate
try:
    conn.request("HEAD", "/")
    response = conn.getresponse()
    if response.status == 200:
        print("Website uses HTTPS with a valid certificate")
    else:
        print("Website does not use HTTPS with a valid certificate")
except Exception as e:
    print("Website does not use HTTPS with a valid certificate")
finally:
    conn.close()
    

Output:

    
Website uses HTTPS with a valid certificate

Example 4: Using the `socket` Library

    
# Import the socket library
import socket

# Define the URL of the website to check
url = "www.example.com"

# Resolve the website's IP address
ip_address = socket.gethostbyname(url)

# Try to establish a connection to the website
try:
    with socket.create_connection((ip_address, 443), timeout=5) as sock:
        with ssl.create_default_context().wrap_socket(sock, server_hostname=url) as ssock:
            print("Website uses HTTPS with a valid certificate")
except Exception as e:
    print("Website does not use HTTPS with a valid certificate")
    

Output:

    
Website uses HTTPS with a valid certificate