Installing website blockers reliably prevents relapse.

Status: Limited Evidence · Evidence strength: limited

Summary

Blockers reduce convenience but are not a complete solution on their own. Community reports describe mixed results, and research on their effectiveness for PPU specifically is limited.

Current interpretation

Environmental barriers can support behavior change by increasing friction. They are best understood as one tool among several, not a complete solution.

What the community reports

Some community members report that blockers helped, especially early on. Others report bypassing them.

Uncertainties

• Effectiveness of blockers for PPU outcomes
• Whether effects persist after blockers are removed

Assessment

Blockers add friction but are not a standalone solution. Community reports are mixed; direct research is limited.

Related

• Topic: self-regulation
• Topic: habit-formation
• Question: do-website-blockers-work (main site)

This is an educational evidence assessment, not medical advice. Last reviewed: 2026-10-04.