Scanera

Scanera is a powerful domain analysis and validation tool that performs comprehensive checks using DNS resolution, HTTP(S) requests, browser-based rendering, technology detection, and security assessments.

🚀 Features

• Multi-layer validation – DNS resolution, HTTP/HTTPS requests, and headless browser checks
• Technology detection – Identify CMSs, frameworks, libraries, and server software
• Security assessment – Inspect HTTPS configuration, security headers, and TLS certificates
• Screenshot capture – Full-page screenshots of active domains
• Content analysis – Analyze page content, links, and metadata
• High performance – Process thousands of domains with intelligent concurrency
• Comprehensive reporting – Generate results in various formats
• User-friendly CLI – Progress bars, statistics, and intuitive commands

🛠️ Installation

From Source

# Clone the repository
git clone https://github.com/Sla0ui/scanera.git
cd scanera

# Build the application
go build -o scanera

# Run from current directory
./scanera --help

# (Optional) Make it available system-wide
sudo cp scanera /usr/local/bin/

⚡ Quick Start

1. Create a text file with one domain per line:

example.com
github.com
invalid-domain-12345.com

2. Run a domain check:

./scanera check domains.txt

3. View the results in the results directory.

🧭 Command Structure

Scanera uses a subcommand structure. Main commands include:

check        - Scan domains from a file
single       - Scan a single domain
tech         - Detect technologies
screenshot   - Take a screenshot
security     - Check security headers
report       - Generate a report
list         - List previous scan results
batch        - Process domain files in batch

💡 Usage Examples

Check Domains from a File

./scanera check domains.txt
./scanera check -s "200,301,302" -t 15s -c 10 -o results domains.txt
./scanera check --screenshots --detect-tech --security-check domains.txt
./scanera check --force-https domains.txt

Check a Single Domain

./scanera single example.com
./scanera single -v --detect-tech example.com

Detect Technologies

./scanera tech example.com

Take a Screenshot

./scanera screenshot example.com
./scanera screenshot -w 1920 -h 1080 -o custom_output.png example.com

Check Security Headers

./scanera security example.com

Generate a Report

./scanera report -i results/scan_results.json -o report -f html

List Results

./scanera list
./scanera list -t active
./scanera list -c

Batch Process Domains

./scanera batch domain_directory/
./scanera batch -p "*.csv" -C 2 domain_directory/

⚙️ Command Line Options

Basic Options

Flag	Description	Default
-s, --status-codes	Successful HTTP status codes	200
-t, --timeout	Timeout for HTTP requests	10s
-r, --retries	Retries for failed requests	2
-c, --concurrency	Concurrent checks	5
-T, --verify-tls	Verify TLS certificates	false
-u, --user-agent	User-Agent string	Mozilla/5.0 (compatible; Scanera/1.0)
-o, --output-dir	Output directory	results
-v, --verbose	Verbose logging	false
-n, --no-color	Disable color output	false
-f, --format	Output format (text, json, csv)	text
-q, --quiet	Suppress terminal output	false
--browser-timeout	Timeout for browser-based checks	20s
--no-progress	Disable progress bar	false
--force-https	Only scan HTTPS URLs	false
--skip-dns	Skip DNS resolution	false
--skip-browser	Skip browser-based checks	false

Advanced Options

Flag	Description	Default
--screenshots	Take screenshots of active domains	false
--screenshot-dir	Screenshot output directory	screenshots
--detect-tech	Enable technology detection	false
--security-check	Check security headers	false
--output-format	Report formats (comma-separated: csv,json,html,text)	all
--analyze-content	Analyze page keywords and structure	false
--batch-size	Batch size for domain processing	100
--webhook	Webhook URL for result delivery	""
--compare	Compare with previous scan	false
--export	Path to export bundled report	""
--max-redirects	Max redirects to follow	10
--cert-info	Include TLS certificate info	false

🛠️ Troubleshooting

Common Issues

• Command not found – Use ./scanera or ensure it's in your PATH
• Unknown command – Use correct subcommand (e.g., ./scanera check domains.txt)
• Browser errors – Ensure Chrome or Chromium is installed
• Slow scans – Adjust concurrency and timeouts or use --skip-browser
• Memory issues – Use batching with --batch-size

Check Chrome Installation

which google-chrome
which chromium-browser

Minimal Run

./scanera check --skip-browser --skip-dns domains.txt

📁 Output Files

Scanera generates output in the specified directory:

• active_domains.txt – Successfully scanned domains
• inactive_domains.txt – Unreachable or failed domains
• domain_check_log.csv – Basic check results (CSV)
• scan_results.json – Full JSON report

With advanced features:

• screenshots/ – Screenshot images of domains

🔍 Use Cases

• Website monitoring – Ensure your domains are live and secure
• Security audits – Check HTTPS and headers
• Tech discovery – Identify stack of any site
• Domain portfolio management – Keep tabs on large sets of domains
• Competitive analysis – Spy on competitors’ tech stacks

📦 Requirements

• Go 1.18+
• Chrome or Chromium (for browser-based features)

🤝 Contributing

Contributions are welcome! To contribute:

1. Fork the repo
2. Create a branch: git checkout -b feature/my-feature
3. Commit your changes: git commit -m 'Add my feature'
4. Push: git push origin feature/my-feature
5. Open a Pull Request

📄 License

This project is licensed under the MIT License – see the LICENSE file.

Built with ❤️ by Sla0ui