# Certificate error on julialang.org

**URL:** <https://discourse.julialang.org/t/certificate-error-on-julialang-org/4886>\
**Category:** Meta Discussion\
**Created:** [July 16, 2017, 7:53pm UTC](https://discourse.julialang.org/t/certificate-error-on-julialang-org/4886 "2017-07-16T19:53:43Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![jhlq](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/jhlq/32/1384_2.png) [@jhlq](https://discourse.julialang.org/u/jhlq)\
**Post date:** [July 16, 2017, 7:53pm UTC](https://discourse.julialang.org/t/certificate-error-on-julialang-org/4886/1 "2017-07-16T19:53:43Z")

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Was promoting Julia to some friends, they found [julialang.org](http://julialang.org) and clicked on some link at the top which gave them a white screen with an error saying something about a certificate missmatch, this prompted them to immediately leave the site… Have tried every link they could have clicked and all work here, what could have caused this?

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**Author:** ![avik](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/avik/32/17_2.png) [@avik](https://discourse.julialang.org/u/avik)\
**Post date:** [July 16, 2017, 9:48pm UTC](https://discourse.julialang.org/t/certificate-error-on-julialang-org/4886/2 "2017-07-16T21:48:57Z")

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There was an issue with the website a couple of days ago for a few hours, at which time users saw a “certificate mismatch” error. Are they still seeing that? in that case, some screenshots would be good.

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**Author:** ![jhlq](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/jhlq/32/1384_2.png) [@jhlq](https://discourse.julialang.org/u/jhlq)\
**Post date:** [July 17, 2017, 12:52pm UTC](https://discourse.julialang.org/t/certificate-error-on-julialang-org/4886/3 "2017-07-17T12:52:43Z")

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Found a thread here on the same issue created at the time of occurrence so no worries