csdn.net

Mixed

Results vary across csdn.net: of 25 URLs tested, 16 are disrupted some of the time and 9 load normally. 1,024 tests have been run under this domain since 2011-03-03, the most recent on 2026-07-27.

Plain HTTP and HTTPS differ here: http://csdn.net is not blocked, https://csdn.net is intermittent.

The two are filtered by different means — an unencrypted request by the address and keywords it carries in the clear, an encrypted one by the server name in its TLS handshake — so one working while the other does not is normal.

25URLs tested

9accessible

1,024tests all-time

2011first tested

4 d agolast tested

The site itself

http://csdn.netas of 2026Not blocked https://csdn.netIntermittent http://www.csdn.netas of 2026Intermittent https://www.csdn.netIntermittent

Pages and subdomains (21)

http://bbs.csdn.netNot blocked http://blog.csdn.netas of 2026Intermittent http://news.csdn.netas of 2026Not blocked https://blog.csdn.netIntermittent https://gitcode.csdn.netas of 2026Not blocked https://my.csdn.net/SCSDNas of 2025Intermittent http://blog.csdn.net/syhostas of 2026Intermittent https://blog.csdn.net/yuke070/article/details/10375531as of 2025Not blocked http://blog.csdn.net/xxiaobaib/article/details/51154204as of 2026Intermittent https://blog.csdn.net/wjjc1017/article/details/135154221Intermittent https://blog.csdn.net/wjjc1017/article/details/135081861Intermittent https://blog.csdn.net/RustyChen/article/details/103219232as of 2026Intermittent https://blog.csdn.net/shangboerds/article/details/46550045as of 2026Intermittent https://blog.csdn.net/iteye_15898/article/details/81818104Not blocked http://blog.csdn.net/wangtingshuai/article/details/53198259as of 2026Intermittent https://blog.csdn.net/qq_51914253/article/details/132452164as of 2026Not blocked https://blog.csdn.net/gitblog_00478/article/details/148415473as of 2026Intermittent https://blog.csdn.net/weixin_29356815/article/details/112587732as of 2026Not blocked https://blog.csdn.net/weixin_41905135/article/details/137205366Intermittent https://blog.csdn.net/weixin_42608414/article/details/123822096as of 2025Not blocked https://blog.csdn.net/weixin_44424712/article/details/122502792as of 2026Intermittent

About csdn.net and the Great Firewall

Is csdn.net blocked in mainland China?

Results vary across csdn.net: of 25 URLs tested, 16 are disrupted some of the time and 9 load normally. 1,024 tests have been run under this domain since 2011-03-03, the most recent on 2026-07-27.

Why does http://csdn.net behave differently from https://csdn.net?

Plain HTTP and HTTPS differ here: http://csdn.net is not blocked, https://csdn.net is intermittent. The two are filtered by different means — an unencrypted request by the address and keywords it carries in the clear, an encrypted one by the server name in its TLS handshake — so one working while the other does not is normal.

Elsewhere on the site

Most-blocked .net domains Every tested URL under csdn.net

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