If visitors in certain countries (commonly China, Russia, or other regions) cannot access your website while it works fine elsewhere, there are several possible causes ranging from DNS filtering to firewall country blocks.
01. Server Firewall Country Blocks
Our servers may have country-level firewall rules that block traffic from regions with high levels of malicious activity. If legitimate visitors from a specific country are being blocked, open a support ticket and let us know which country is affected. We can whitelist specific countries for your account.
02. China-Specific Issues
China's Great Firewall blocks or throttles access to many websites hosted outside China. This is a government-level block that we cannot bypass from our servers. If reaching Chinese visitors is important to your business:
- Use a CDN with Chinese PoPs - Cloudflare's paid plans include China network access. See Cloudflare Setup Guide.
- Get an ICP license - Websites hosted in mainland China require an ICP (Internet Content Provider) license. Without it, Chinese hosting providers and CDNs cannot serve your content.
- Test access - Use tools like blockedinchina.net to check if your site is accessible from China.
03. DNS and ISP-Level Blocking
Some ISPs in certain countries block access to specific IP ranges. If our server's IP is on an ISP's block list, visitors on that ISP cannot reach your site. This is outside our control, but a CDN or different server IP can sometimes bypass it.
04. Using a CDN to Improve Access
A CDN (Content Delivery Network) like Cloudflare serves your website from servers around the world. Visitors connect to the nearest CDN server instead of directly to your hosting, which can bypass regional blocks and improve speed globally.
See Cloudflare Setup Guide and How to Speed Up Your Website.
Visitors Being Blocked?
Let us know which country is affected and we will check if a server-side firewall rule is the cause.
Open a Support TicketQuick Recap
- Contact support to check for country-level firewall blocks
- China's Great Firewall blocks many overseas sites - CDN may help
- ISP-level blocks are outside our control but a CDN can bypass them
- Cloudflare can improve global accessibility
- Test with upordown.ultrawebhosting.com to verify if the issue is regional
International access troubleshooting · Last updated March 2026 · Browse all General articles
