It is possible to unblock a domain after it has been blocked, with technical errors potentially resolved in days, while severe violations may result in permanent bans. The likelihood and methods of unblocking depend on the specific situation. Prioritizing unblocking or switching to a compliant domain, combined with technical measures and content compliance, can minimize losses. Below is an analysis and possible solutions:

1. Identify the Reason for the Block #

• Content Issues: The website may contain sensitive content (e.g., political, adult, or gambling-related), triggering the Great Firewall’s filters.
• IP Association: The server IP the domain resolves to may be blacklisted, such as when shared with other blocked sites.
• DNS Pollution: The domain may be affected by DNS pollution, preventing proper resolution.
• Mistaken Block: Blocks may sometimes result from Great Firewall misjudgments or technical errors.

Recommendation: Check if the website content complies with mainland China’s laws and regulations; use tools like “GreatFire Analyzer” or “feige301.com” to test if the domain is blocked.

A blocked domain can use 301 redirects, but this requires content cleanup, compliance with ICP filing, and careful technical execution to mitigate risks and transfer SEO weight. The effectiveness and specific steps depend on the situation. Below is a detailed analysis:

Role of 301 Redirects #

A 301 redirect (permanent redirect) can redirect traffic from the blocked original domain to a new, unblocked domain. This can help retain user access and search engine weight (e.g., SEO), but consider the following:

When a domain is blocked, the website may become inaccessible in mainland China. Redirect systems (or domain redirect solutions) use technical methods to redirect user requests from a blocked domain to an accessible domain or server, restoring access. Below are several common redirect systems or solutions for blocked domains, covering mainstream technologies and tools suitable for different scenarios. Carefully evaluate compliance risks and technical limitations based on your situation. Here are the specific technical solutions and their analysis: