GreatFire

cryptostorm.is

Mostly blocked

7 of the 8 URLs we have a verdict for under cryptostorm.is are blocked in mainland China; 1 are not. The site itself, https://cryptostorm.is, is blocked. The Great Firewall poisons its DNS, silently drops its packets so requests time out and blocks the connection outright. 286 tests have been run under this domain since 2015-12-01, the most recent on 2026-08-07.

DNS poisoning 7 Timeout / silent drop 4 Connection failed 1 Connection reset 1
8URLs tested
7blocked
286tests all-time
2015first tested
18 d agolast tested

The site itself

http://cryptostorm.isas of 2026Blockedhttps://cryptostorm.isas of 2026Blockedhttps://www.cryptostorm.isas of 2026Blocked

Pages and subdomains (5)

https://cryptostorm.is/faqas of 2026Blockedhttps://cryptostorm.is/blogIntermittenthttps://cryptostorm.is/wgconfzipas of 2026Blockedhttps://cryptostorm.is/dns-queryBlockedhttps://irc.cryptostorm.isas of 2026Blocked

About cryptostorm.is and the Great Firewall

Is cryptostorm.is blocked in mainland China?

7 of the 8 URLs we have a verdict for under cryptostorm.is are blocked in mainland China; 1 are not. The site itself, https://cryptostorm.is, is blocked. The Great Firewall poisons its DNS, silently drops its packets so requests time out and blocks the connection outright. 286 tests have been run under this domain since 2015-12-01, the most recent on 2026-08-07.

How can I reach cryptostorm.is from mainland China?

A VPN or another circumvention tool routes the request outside mainland China, past the filtering that blocks cryptostorm.is. GreatFire runs GreatFire VPN; the Analyzer also tests the domains of many VPN and proxy providers, so you can check whether one is reachable before relying on it.

Elsewhere on the site

Most-blocked .is domainsEvery tested URL under cryptostorm.is

Each URL's status is its verdict over the last 90 days, the same one its own page headlines.