What is Capture The Flag?

Capture The Flag is a Chrome extension developed by chromium.extensions, and its main feature is "Capture The Flag — privacy-focused browser extension to determine website country.".

Extension Screenshots

Download Capture The Flag Extension CRX File

Download Capture The Flag extension files in crx format, manually install Chrome extensions in the browser, or share the crx files with friends to easily install Chrome extensions.

Extension Usage Instructions

You have the right to know where your data has traveled through.

This extension has a built-in IP to country database. On top of that it uses a bunch of heuristics to determine a real website country, which often can be reliably guessed by the HTTP headers the website responds with.

This information is then presented in accessible way using either your OS native emoji or the beautiful emojis by Twemoji.

It's 2023. Cloud adoption is projected to only increase over the coming years. Every single website owner nowadays has gotten access to an affordable global CDN infrastructure provided by many cloud platforms. Yet, all other country flag extensions still rely solely on IP address country detection. It's time to get smarter than that.

The extension does not store any analyzed information and it never leaves your device.

Extension Basic Information

Name	Capture The Flag
ID	plmbleiamgcdnenigiocddjjgacgfgjb
Official URL	https://chromewebstore.google.com/detail/capture-the-flag/plmbleiamgcdnenigiocddjjgacgfgjb
Description	Capture The Flag — privacy-focused browser extension to determine website country.
File Size	3.62 MB
Installation Count	117
Current Version	0.0.15 (da4e6f9f)
Last Updated	2023-08-03
Publish Date	2021-02-04
Rating	4.80/5 Total 5 Ratings
Developer	chromium.extensions
Email	[email protected]
Payment Type	free
Extension Website	https://nilfalse.com/addons/ctf
Supported Languages	en
manifest.json
{ "update_url": "https:\/\/clients2.google.com\/service\/update2\/crx", "manifest_version": 2, "name": "__MSG_ext_name__", "version": "0.0.15", "default_locale": "en", "description": "__MSG_ext_description__", "icons": { "32": "icons\/icon_32px.png", "48": "icons\/icon_48px.png", "128": "icons\/icon_128px.png", "256": "icons\/icon_256px.png", "512": "icons\/icon_512px.png" }, "page_action": { "default_icon": { "32": "icons\/icon_32px.png", "48": "icons\/icon_48px.png", "128": "icons\/icon_128px.png", "256": "icons\/icon_256px.png", "512": "icons\/icon_512px.png" }, "default_popup": "popup.html", "show_matches": [ "" ] }, "options_ui": { "page": "options.html", "open_in_tab": false }, "author": "Yaroslav Ilin", "background": { "scripts": [ "background.runtime.js", "background.js" ] }, "minimum_chrome_version": "36", "permissions": [ "webRequest", "", "storage" ], "short_name": "__MSG_ext_short_name__", "version_name": "0.0.15 (da4e6f9f)" }