Updating the GEO databases

Advanced featuresUpdated 2026-06-16

GEOIP and GEOSITE rules rely on local databases to classify IPs and domains. Stale databases cause misrouting — refresh them periodically.

What GEO data is

The GeoIP database maps IP ranges to countries (what a rule like GEOIP,US,DIRECT relies on); the GeoSite database maintains categorized domain lists (e.g. the geosite:category-ads-all ad-domain set). Sites and IP allocations change constantly, so the databases must keep up.

Sponsored Where does the subscription link come from? Our partner provider gives you 1 GB of high-speed Hong Kong data at signup — import it in one click. Get high-speed nodes

Update steps

1. Open the Settings page and find the “Clash Core” area.
2. Click the “Update GeoData” button.
3. Wait for the download; the core loads the new data automatically.
4. If the download crawls, enable the proxy first and retry.

Related guides

Using TUN mode

Capture all traffic through a virtual adapter, covering apps that ignore the system proxy.

Installing service mode

Install the system service so TUN mode runs without administrator prompts.

DNS settings explained

How the built-in DNS works and the adjustments you may actually need.