| Documentation

CFD is a tool that allows you to check one or more domains to see if they are protected by CloudFlare or not. The check is carried out based on five criteria: 3 headers in the HTTP response, IP, and SSL certificate issuer. The check result can be displayed on the screen or saved to a file.

Requirments

To use Cfd you need to install Cargo and Rust. Just paste into your terminal window: bash curl https://sh.rustup.rs -sSf | sh cargo install cfd

Usage

bash cfd [OPTIONS] <TARGET>

Arguments

bash <TARGET> A domain, domains divided by newline char or a file with domains.

Flags

bash -h, --help Prints help information -V, --version Prints version information

Options

bash -d Outputs a detailed result for each domain based on five checks. -f Outputs only domains without Cloudflare presence. -o <OUTPUT> The path to the folder where the cfd_report.{txt or csv} file will be stored. If a file won't be specified, output will be printed to stdout. If the detailed flag is set, the output will include checking details. -h, --help Print help -V, --version Print version

Usage examples

Every example will be shown with this set of domains: cloudflare.com, example0.com, example1.com, example2.com

1. Not detailed and not filtered output. If you provide a folder for outputting the result through the -o option, the result will be written in the form of cfd_report.csv

bash cfd resources/cfd_work.txt

Output:

2. Detailed and not filtered output to stduout. If you provide a folder for outputting the result through the -o option, the result will be written in the form of cfd_report.csv

bash cfd resources/cfd_work.txt -d

Output:

3. Detailed and filtered output to stduout. If you provide a folder for outputting the result through the -o option, the result will be written in the form of cfd_report.csv

bash cfd resources/cfd_work.txt -d -f

Output:

4. Detailed and filtered output to stduout. If you provide a folder for outputting the result through the -o option, the result will be written in the form of cfd_report.txt

bash cfd resources/cfd_work.txt -f

Output:

cloudflare.com
example1.com

In-Code examples

Complex checking:

```rust use cfd::run;

[tokio::main]

async fn main(){ let target = "example.com\ncloudflare.com"; let checker = run(target.tostring()).await.unwrap(); asserteq!(checker.cfdetecteddomains().await.len() == 1, true); } ```

Check if an IP belongs to the Cloudflare IP range:

```rust use cfd::cf_ips::CFIPs;

[tokio::main]

async fn main(){ let cfips = CFIPs::load().await.unwrap(); assert!(cfips.checkipv4("131.0.72.1")); } ```

Donation

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License

MIT