Network coverage

Asia reachability

CaptchaLa endpoints are reachable from mainland China. Verification completes without a separate SDK, account or billing arrangement.

Background

reCAPTCHA loads from Google domains, which are not reachable from mainland China. Forms that depend on it cannot be completed there, and the failure produces no error message — the form simply never becomes submittable.

Service coverage

CaptchaLa serves from APAC edge nodes in Singapore, Hong Kong and Vietnam, in addition to its US and EU points of presence. Requests from mainland China are handled by the nearest APAC node.

The widget loads and the form remains submittable.

Diagram of CaptchaLa network coverage: APAC edge nodes in Singapore, Hong Kong and Vietnam, with requests from mainland China routed to the nearest node, plus points of presence in the US and EU.EUUSMainland ChinaHong KongVietnamSingapore
APAC edge node Point of presence Cross-border routing

Cross-border requests have higher latency than in-region traffic, and reachability is subject to network conditions.

Comparison

Google reCAPTCHANot reachableLoads from Google domains, which are blocked in mainland China.
Cloudflare TurnstileInconsistentReachability depends on Cloudflare's presence in mainland China, with no alternative path.
CaptchaLaReachableServed from the nearest APAC edge node. Higher latency than in-region users.
Domestic providersReachableIn-country nodes and lower latency, typically requiring a domestic contracting entity and Chinese-language documentation.

Evaluate with your own traffic

The free tier covers evaluation with production traffic.