內容簡介
Smart Country Blocker 是一款強大的 WordPress 外掛，能根據訪客的地理位置限制網站存取，幫助您阻擋來自特定國家的不必要流量，保護網站安全。
【主要功能】
• 完整國家列表 - 支援 195+ 個國家選擇
• 前端與後端封鎖 - 封鎖網站頁面及管理區域
• 詳盡日誌記錄 - 追蹤所有被封鎖的存取嘗試
• 統計儀表板 - 檢視封鎖總數及獨立 IP 數量
• 進階過濾功能 - 按國家、日期、IP 地址過濾日誌
• 自訂封鎖頁面 - 編輯 blocked.php 自訂拒絕存取頁面
外掛標籤
開發者團隊
原文外掛簡介
IMPORTANT: This plugin uses external third-party services (ipwho.is and ipapi.co) to determine visitor location. Please review the “External Services” section below for details on data transmission and privacy.
Smart Country Blocker is a powerful WordPress plugin that allows you to restrict access to your website based on visitor location. Block unwanted traffic from specific countries on both frontend pages and backend admin areas.
Key Features:
🌍 Complete Country List – Select from 195+ countries worldwide
🎯 Frontend & Backend Blocking – Block both website pages and wp-admin/wp-login.php
📊 Comprehensive Logging – Track all blocked access attempts with IP, country, URL, and timestamp
📈 Statistics Dashboard – View total blocks, unique IPs, and blocked countries count
🔍 Advanced Filtering – Filter and sort logs by country, date, IP address
📄 Pagination – Manage large log datasets with 20 records per page
⚡ Quick Remove – Remove countries from blocked list with one click
🔒 Cache-Friendly – Compatible with major caching plugins (see configuration below)
🎨 Customizable Block Page – Edit blocked.php to customize the access denied page
🖥️ Easy-to-Use Interface – Checkbox selection with search functionality
Important: Cache Plugin Compatibility
CRITICAL: If you use a caching plugin (WP Rocket, W3 Total Cache, WP Super Cache, LiteSpeed Cache, etc.), cached pages may bypass country blocking. Follow these configuration steps:
WP Rocket Configuration
WP Rocket should work automatically as the plugin sets the DONOTCACHEPAGE constant. However, for best results:
Go to WP Rocket > Settings > Advanced Rules
Add this to “Never Cache URL(s)”:
/(.*)
(Only if you want to disable cache completely for blocked countries)
The plugin automatically prevents caching for blocked visitors
W3 Total Cache Configuration
Go to Performance > Page Cache
Scroll to “Never cache the following pages:”
Add: * (if you want complete blocking to bypass cache)
OR go to Performance > General Settings
Enable “Page Cache” > “Don’t cache pages for logged in users”
WP Super Cache Configuration
WP Super Cache should work automatically as the plugin sets no-cache headers. To verify:
Go to Settings > WP Super Cache
Make sure “Don’t cache pages with GET parameters” is enabled
The plugin sends proper no-cache headers for blocked visitors
LiteSpeed Cache Configuration
Go to LiteSpeed Cache > Cache
Under “Do Not Cache URIs”, you can add specific paths if needed
The plugin sets proper cache bypass constants
Cloudflare Configuration
If using Cloudflare:
Go to Cloudflare Dashboard > Rules > Page Rules
Add a rule: yoursite.com/*
Set “Cache Level” to “Bypass” (optional, only if experiencing issues)
Or add IP-based rules in Cloudflare’s Firewall
Testing After Configuration
Always test blocking functionality:
Connect to a VPN from a blocked country
Try to access your website
You should see the “Access Restricted” page
Check Block Logs in the plugin to confirm the block was logged
If you can still access, clear your cache plugin cache and test again
Usage
Blocking Countries
Go to Country Blocker in WordPress admin
Use the search box to quickly find countries
Check/uncheck countries to block/unblock
Click Save Changes
Use “Select All” or “Deselect All” for bulk operations
Quick Remove Blocked Countries
View the “Currently Blocked Countries” section at the top
Click the × button next to any country to remove it instantly
Confirm the removal in the popup
Viewing Block Logs
Go to Country Blocker > Block Logs
See statistics: Total Blocks, Unique IPs, Countries Blocked, Last 7 Days
Filter logs by country, sort by date/IP/country
View detailed information: IP address, country, access type (frontend/backend), URL, timestamp
Use pagination to navigate through logs
Clearing Logs
Click Clear All Logs button to remove all historical block records. This cannot be undone.
External Services
This plugin relies on third-party GeoIP services to determine visitor location based on their IP address. These services are essential for the plugin’s core functionality.
ipwho.is (Primary Service — default)
What it does: Provides IP geolocation data to identify the visitor’s country.
When data is sent: Every time a new visitor accesses your website from an IP address not cached in the last hour. The plugin sends the visitor’s IP address to ipwho.is API.
Data transmitted: Only the visitor’s IP address is sent to the API. No personal information, cookies, or user data is transmitted.
Caching: Results are cached for 1 hour per IP address to minimize API calls and improve performance.
Service provider: ipwho.is is a free IP geolocation service.
Website: https://ipwho.is/
API Documentation: https://ipwho.is/
Terms of Service: https://ipwho.is/ (see website footer for terms)
Privacy Policy: https://ipwho.is/ (see website footer for privacy policy)
findip.net (Optional Alternative Service)
What it does: An alternative IP geolocation service you can use instead of ipwho.is. Requires a free API key.
When data is sent: When configured as the primary service, the visitor’s IP address is sent to findip.net on each uncached lookup.
Data transmitted: Only the visitor’s IP address is sent to the API. No personal information, cookies, or user data is transmitted.
Service provider: findip.net is an IP geolocation service using GeoNames / MaxMind data.
API key: A free account and API token are required. Sign up at https://findip.net/ and enter the token in Country Blocker > API Settings.
Website: https://findip.net/
API Documentation: https://findip.net/
Terms of Service: https://findip.net/ (see website for current terms of service)
Privacy Policy: https://findip.net/ (see website for privacy policy information)
Note: By using findip.net, you agree to their terms of service and privacy policy as outlined on their website.
ipapi.co (Fallback Service)
What it does: Acts as a backup geolocation service if the primary service (ipwho.is or findip.net) fails or is unavailable.
When data is sent: Only when the primary service fails to respond or returns an error. The plugin automatically tries ipapi.co as a fallback.
Data transmitted: Only the visitor’s IP address is sent to the API. No personal information, cookies, or user data is transmitted.
Service provider: ipapi.co is a free IP geolocation service with rate limits (30,000 requests/month for free tier).
Terms of Service: https://ipapi.co/terms/
Privacy Policy: https://ipapi.co/privacy/
API Documentation: https://ipapi.co/api/
Data Protection & Privacy
The plugin does NOT send any personal user data, cookies, form inputs, or browsing history to external services.
Only IP addresses are transmitted, which are necessary for geolocation functionality.
API requests are made server-side; visitor browsers do not directly contact these services.
Failed API lookups are logged locally for troubleshooting purposes.
All API requests use HTTPS (SSL) encryption.
Legal Compliance
If you operate in regions with strict privacy laws (GDPR, CCPA, etc.), please be aware:
– IP addresses may be considered personal data under some regulations.
– Consider adding a privacy notice informing users that their IP addresses may be processed for access control.
– The plugin logs blocked access attempts (IP + country + timestamp) in your WordPress database for security purposes.
Technical Details
Database Table
The plugin creates wp_country_blocker_logs table with the following structure:
– id (Primary Key)
– ip_address (VARCHAR 45)
– country_code (VARCHAR 2)
– country_name (VARCHAR 100)
– blocked_url (TEXT)
– user_agent (TEXT)
– access_type (VARCHAR 20) – ‘frontend’ or ‘backend’
– blocked_at (DATETIME)
Hooks Used
plugins_loaded (priority -999999) – Early blocking execution
admin_menu – Register admin pages
admin_notices – Show cache configuration notice
Constants Defined
Important Note About Unprefixed Constants:
This plugin defines industry-standard cache bypass constants that are intentionally unprefixed and cannot be changed. These constants have been the de-facto standard in the WordPress caching ecosystem for over 15 years and are recognized by virtually all caching plugins and CDN services.
Why these constants MUST remain unprefixed:
These constants are NOT WordPress core constants. They are industry standards established by the caching plugin ecosystem. WP Rocket, LiteSpeed Cache, W3 Total Cache, WP Super Cache, and dozens of other caching/CDN plugins specifically check for these exact constant names.
Prefixing these constants (e.g., changing DONOTCACHEPAGE to WPCB_DONOTCACHEPAGE) would break compatibility with all major caching plugins, rendering the blocking functionality useless on cached sites.
Constants used for cache bypass (when blocking visitors):
DONOTCACHEPAGE – Prevents page caching (WP Rocket, LiteSpeed Cache, W3 Total Cache, WP Super Cache)
DONOTCACHEDB – Prevents database query caching (W3 Total Cache)
DONOTMINIFY – Prevents JS/CSS minification (Autoptimize, WP Rocket, Fast Velocity Minify)
DONOTCDN – Prevents CDN URL rewriting (CDN Enabler, W3 Total Cache CDN module)
DONOTCACHEOBJECT – Prevents object caching (LiteSpeed Cache, W3 Total Cache)
These constants are set ONLY when a visitor is being blocked (403 response), not globally. They signal to caching plugins: “Do not cache this specific request.”
References:
– WP Rocket Documentation: https://docs.wp-rocket.me/article/61-disable-page-caching
– LiteSpeed Cache Documentation: https://docs.litespeedtech.com/lscache/lscwp/cache/#do-not-cache-constants
This is an accepted exception to WordPress naming conventions and is properly documented in the code with phpcs ignore comments.
Support
For support, bug reports, or feature requests, please contact the developer.
Privacy
This plugin logs IP addresses and country information for security purposes. Ensure compliance with GDPR/privacy laws in your jurisdiction. Consider adding a privacy notice to inform users that their IP addresses may be logged if they attempt to access from blocked countries.
