Investigate access issues
A website fails in one region? Work through DNS, TCP, TLS, and HTTP to narrow the failure stage before assigning a cause.
Read the troubleshooting guideMAINLAND CHINA NETWORK CHECKS
See your domainfrom mainland China.
Observe domains and network connections from real carrier networks. Find access issues, compare node results, and retain evidence with ongoing monitoring and a batch API.
- Try a DNS pollution check without signing up
- Usage-based pricing, no fixed plan
Illustrative resultsSample data, not a live check
TLS SNI checkexample.com
Example time
| Network | Assessment | Observation |
|---|---|---|
| Fujian · Telecom | Normal | Connection completed |
| Shandong · Unicom | Abnormal | Connection reset |
| Guangdong · Mobile | Indeterminate | Node timeout |
One target, different networks. Every result has its own test conditions.
A real network perspectiveCompare regions and carriers
Monitoring and alertsTelegram, email, and in-app notifications
API automationBring batch checks into your workflow
START WITH YOUR QUESTION
You need more than a yes or no.
Track domain status
Schedule checks, review domain and node history, and notify the right contacts when alert conditions are met.
Explore ongoing monitoringIntegrate batch checks
Bring asynchronous checks into operations, retrieve batch results, retain evidence, and handle business actions in your own system.
Read the API guideCHOOSE THE RIGHT CHECK
Observe each layer. Combine checks for your use case.
Five base methods and two GFW scenarios answer different questions. Network results do not guarantee that every website feature works.
Base network checks
Observe resolution, connectivity, and protocol handshakes separately for troubleshooting and API integration.
- DNS resolution
- ICMP Ping
- TCP connection
- HTTP Host
- TLS SNI
GFW scenario checks
DNS Pollution returns a domain assessment. GFW Full provides DNS Pollution, HTTP Host, and TLS SNI dimensions with an aggregate result.
- DNS Pollution
- GFW Full
FROM OBSERVATION TO OPERATIONS
Turn results into evidence you can keep using.
Choose the target and conditions
Select a method for the question, and choose nodes where supported.
Read beyond the status label
Keep the target, node, time, and protocol status. Indeterminate does not mean normal.
Build an ongoing workflow
Use Console for monitoring and alerts, or integrate the API into your own system.
Start with one domain.
Try a free DNS pollution check, then choose ongoing monitoring or API integration.