README.md

Domain Checker

Command-line tool to check the status, IP address, cloud service, and port availability of specified domains.
The target domains and ports can be configured in a TOML file, allowing for flexible customization.

Features

• Check if a domain is reachable (HTTP/HTTPS connectivity)
• Resolve the domain's IPv4 address (CNAME resolution supported)
• Detect the cloud provider (AWS, GCP, Azure) based on IP ranges
• Scan for open ports based on the configured list in the TOML file
• Display results in a clear table format
• Detailed logs available with --verbose
• Custom TOML file path supported via --file option

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Installation

git clone https://github.com/7csc/domain-checker.git
cd domain-checker
go build -o doch(sample)

Usage

./doch check --file=domains.toml --verbose

Options

option	description
--file	Path to the TOML file listing domains and ports (default: domains.toml)
--verbose	Show detailed logs

Example domains.toml

[[domains]]
name = "example.com"
ports = { http = 80, https = 443, ssh = 22 }

[[domains]]
name = "www.sample.net"
ports = { http = 80, https = 443, ssh = 22  }

Sample Output

fetching example.com /
fetching www.sample.net /
+-------------------+----------+---------+---------+----------------+------+------+-------+-----+
|      DOMAIN       |  STATUS  |  CLOUD  | SERVICE |       IP       | SMTP | HTTP | HTTPS | SSH |
+-------------------+----------+---------+---------+----------------+------+------+-------+-----+
| example.com       | active   | AWS     | shared  | xx.xxx.xx.xxx  | -    | open | open  | -   |
| www.sample.net    | active   | GCP     | unknown | xx.xxx.xx.xxx  | open | open | open  | -   |
| service.io        | active   | Azure   | unknown | xx.xxx.xx.xxx  | open | open | open  | -   |
| unknown.space     | deactive | unknown | unknown | N/A            | open | -    | -     | -   |
+-------------------+----------+---------+---------+----------------+------+------+-------+-----+