TLS-Checker

This Python script is designed to gather information about a list of domains.

About | Output | Screenshot | Download & Install | How to use

About

The script collects various details about each domain, or rather domain names in the first column of input.csv including:

• IPv4
• IPv6
• Autonomous System Number (ASN)
• ASN organization
• ISO code of the country
• Country name
• Cipher
• SSL/TLS version
• Issuer organization
• Ping response time from the domain's server

Output

The results are saved in a SQLite database named output.db and a CSV file named results.csv. An example is provided below:

domain_name	ipv4	ipv6	asn	asn_organ	iso_code	country	cipher	tls_version	issuer_organ	ping
nvidia.com	34.194.97.138	NULL	14618	AMAZON-AES	US	United States	ECDHE-RSA-AES128-GCM-SHA256	TLSv1.2	Amazon	183
intel.com	13.91.95.74	NULL	8075	MICROSOFT-CORP-MSN-AS-BLOCK	US	United States	TLS_AES_256_GCM_SHA384	TLSv1.3	Greater Manchester	NULL
dreamhost.com	3.163.24.68	2600:9000:260f:e400:1d:5c4:5c40:93a1	16509	AMAZON-02	US	United States	TLS_AES_128_GCM_SHA256	TLSv1.3	Amazon	266

Screenshot

Download & Install

• It is strongly recommended to use PyPy 3.10 instead of the official Python interpreter for significantly better performance.
  • Download Links: https://www.pypy.org/download.html
• After configuring the pip module or virtualenv (optional), you need to install the required modules from requests.txt
  • Official document: https://doc.pypy.org/en/latest/install.html#installing-more-modules

How to use

• Run main.py as the starting point; then you will be asked a series of questions.
• As the first question, you must declare how many of the available domain names in the input.csv file you want to choose.

Important

The higher the value you choose for this item, the more resources your computer will consume.

• Active tasks (Semaphore) defines a boundary for active tasks at the moment.
• Max workers should be double of the number of active tasks, for example if the number of tasks is 100, the number of workers should be 200, but the default value (auto) is calculated using this approach (Python document): "Changed in version 3.8: Default value of max_workers is changed to min(32, os.cpu_count() + 4). This default value reserves at least 5 workers for I/O-bound tasks. It utilizes at most 32 CPU cores for CPU-bound tasks which release the GIL. And it avoids implicitly using very large resources on many-core machines."

Important

The more values you choose for items, the more resources your system will consume and may potentially freeze your computer.

• Ping timeout | TLS info timeout (DNS Connection) | Task timeout

Important

The longer you set the time, the program may require more time to execute, but the active task's time should always be greater than the ping and TLS times. Default formula: task timeout = ping timeout + TLS info + 5.

• You can update the database every few days to get the latest and most up-to-date changes.
• You can find the result.csv in the csv directory.