Cyberspace has become an inseparable part of modern human life and is expanding at an astonishing pace with the rapid emergence of various types of online intermediaries. The presence of numerous advantages and disadvantages has necessitated precise and specialized legislation in this area. Developed countries have gained valuable experience in this domain, and utilizing their regulatory approaches can significantly accelerate the secure and sustainable development of this field in Iran by addressing similar challenges. The findings of this comparative legal study of Iran, the United States, and the European Union demonstrate that Iran's current legal framework is not capable of keeping pace with the evolving needs of cyberspace. Given the inefficiency of existing regulations, a comprehensive, prompt, and coherent revision is essential to simultaneously safeguard individual rights and support the growth of domestic content-hosting platforms. Ultimately, this research analyzes the current legal situation in Iran, outlines the desirable regulatory framework, and identifies existing legislative gaps. It also proposes the essential prerequisites and requirements for formulating a practical and enforceable legal structure aimed at implementing the «Safe Harbor» Doctrine within Iran's digital environment. This proposed legal framework may pave the way for positive developments in the fields of national technology governance and digital law.