Can you open https://www.philzimmermann.com/DE/background/index.html from mainland China?
Sometimes.
Access is unreliable — 100% of the last 1 conclusive tests showed interference.
Access www.philzimmermann.com with GreatFireVPN →Frequently asked questions
Is https://www.philzimmermann.com/DE/background/index.html blocked in mainland China right now?
As of the last test on 2026-08-21, https://www.philzimmermann.com/DE/background/index.html is 100% disrupted in mainland China, based on GreatFire's live Great Firewall measurements.
Why is https://www.philzimmermann.com/DE/background/index.html blocked in mainland China?
Access is unreliable — 100% of the last 1 conclusive tests showed interference.
Since when has https://www.philzimmermann.com/DE/background/index.html been blocked?
GreatFire has recorded interference with https://www.philzimmermann.com/DE/background/index.html from mainland China since 2015-06-12.
How can I access https://www.philzimmermann.com/DE/background/index.html from mainland China?
You need a circumvention tool such as a VPN. GreatFireVPN, built by GreatFire, is designed to bypass the Great Firewall and reach sites like www.philzimmermann.com.
https://www.philzimmermann.com/DE/background/index.html · JSON