o-flag - Website Country Flag & Server Location

o-flag shows the likely country or region of the website in your current tab directly on the browser toolbar icon, so you can tell at a glance where a page is being served from. The icon updates automatically as pages load and works on a per-tab basis. When available, o-flag uses response metadata such as Cloudflare headers for fast detection, and falls back to DNS and IP-based lookup when needed. Open the popup to view the detected region code and current hostname. For local or private-network addresses, o-flag shows a local indicator instead of a country flag. To improve responsiveness and reduce repeated requests, o-flag stores a short-lived local cache on the device. Includes certain flag assets or derived resources based on HatScripts/circle-flags, licensed under the MIT License.