Why cannot i open this kind url link in emergingthreats open rules


i wanna get some information from url link like"doc.emergingthreats.net/2001972",its at the reference section in emergingthreats open rules.but i could not open it ,its linked to anthor address-https://community.emergingthreats.net/. any advice? thanks!

It seems like the TLS certificate has expired - I believe they need to fix it on the ET side.
It can be more beneficial to ask on the ET forum anyway (the site you linked) :slight_smile: