How do I extract email addresses from a website?

Extracting email addresses from websites involves scanning HTML content for patterns that match standard email formats.

Basic approach:

The most reliable method uses regular expressions to find text matching the pattern name@domain.extension.

For web scraping projects, you can:

1. Use libraries like BeautifulSoup (Python), Cheerio (Node.js), or GoQuery (Go)
2. Extract the raw HTML text
3. Apply email-matching patterns

What to check:

• Visible text content
• HTML attributes like href in <a> tags with mailto: links
• JavaScript content that might contain emails

Our tool:

Our Email & Contact Extractor automatically scans uploaded HTML files for email addresses, phone numbers, and social media links, using robust regex patterns that handle common variations like:

• mailto: links
• Obfuscated formats
• Emails embedded in JavaScript

Common obfuscation techniques:

Many websites obfuscate email addresses to prevent scraping:

• JavaScript-assembled addresses
• Replacing @ with [at] or (at)
• Using images instead of text
• Base64 encoding
• Unicode character substitution

Legal compliance:

Always ensure your email extraction complies with:

• The website's terms of service
• Applicable privacy laws like GDPR (EU) and CAN-SPAM (US)
• Data protection regulations in your jurisdiction