BlackSwan | Block External Request
Block unwanted external HTTP requests in WordPress. Blacklist/whitelist management, resource blocking, and one-click pause.
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·10 active installs·Updated 1 week agoAs of April 2026, BlackSwan is a WordPress blacklist plugin with 10 active installations and a 0/5 rating0. It has been downloaded 1.2K+ times in total. Requires WordPress 5.0+ and PHP 5.4+. Available on WordPress.org since 2022. Actively maintained — updated within the last month. Top alternative: Maspik – Ultimate Spam Protection.
0/5Rating
10active installs
1.2K+total downloads
4 yearssince 2022
Overview
BlackSwan Block External Request gives you granular control over every outgoing connection your WordPress site makes — both server-side PHP requests and browser-loaded JS/CSS resources.
WordPress, plugins, and themes constantly send background HTTP requests: update checks, license pings, analytics, font downloads, CDN calls, and more. On slow servers or restricted hosting environments, these requests can add seconds to every admin page load.
This plugin lets you block what you don’t need and keep what you do.
What it does
Server-side HTTP Blocking (PHP)
Intercepts outgoing wp_remote_get / wp_remote_post calls via the pre_http_request filter. Add domains to the blacklist and they’ll be blocked before the request is even made. Whitelist specific URL patterns to let essential req…
Screenshots
Ratings & Reviews
00 reviews
5 ★
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Compatibility
| WordPress | 5.0+ requiredTested up to 6.8.5 |
| PHP | 5.4+ required |
Top Alternatives to BlackSwan | Block External Request
Frequently Asked Questions
Changelog
2.7.0
- Documented all four developer filters with full examples (
block_url_list,whitelist_urls,blocked_resources,cdn_replacements) - Improved readme files for WordPress.org publishing
Contributors
Plugin data sourced from WordPress.org. Analysis and metrics by PluginSift.