Email obfuscation: What works in 2026?
spencermortensen.com
April 2, 2026
11 min read
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64/100
Summary
Effective email obfuscation techniques for 2026 include using plain text to display email addresses and segmenting the address into parts, each protected by different methods. Combining multiple obfuscation techniques increases the likelihood of keeping email addresses hidden from spammers.
Key Takeaways
- Combining multiple email obfuscation techniques enhances protection against spammers.
- CSS display none is one of the most effective methods, as most harvesters cannot apply style rules.
- HTML entities and HTML comments provide minimal protection but can still stop basic harvesters.
- JavaScript techniques like concatenation and conversion can block most harvesters, but the full email address may still appear in the HTML source code.
Coverage & discussions
Hacker News · spencermortensen.com
Community discussions
Community Sentiment
Positives
- The review of email obfuscation techniques highlights that even the simplest methods can be surprisingly effective, which is encouraging for those looking to protect their information.
- Using LLMs to explore obfuscation techniques demonstrates the innovative applications of AI in enhancing email security, showcasing the potential of AI tools in practical scenarios.
Concerns
- Concerns arise about the effectiveness of common obfuscation techniques in the age of LLMs, suggesting that traditional methods may not be sufficient against advanced AI capabilities.