# What's the meaning of cached certificate revocation list and online certificate revocation list in X509RevocationMode Enum?

In this article, there are cached certificate revocation list and online certificate revocation list terms used. I tried to find what these lists are but could find any human-readable info.

I want to understand where are these cached list stores on my computer (Windows, Linux) and what online list is used during online check (is there any URL from where I can download them)?

• Well, it's probable my bad English, i can describe my question properly. I see, that local crl cache stores something like links to crls, so when i use offline check it somehow (i also want to understand if crls are already downloaded and certutil -URLcache CRL only returns the urls or i'm wrong) uses these crls. Now, i want to understand what crl used while online check? – Occam's chainsaw Aug 31 '20 at 3:30