u/Great-Honeydew8186

I have read a bunch of these and it's a little confusing.

Sandman had a few appearances from other DC characters so I assume it is. Because Lucifer was a semi spin off sequel from that I assume it is as well.

But then there's Hellblazer which spun off of Swamp Thing meaning it should be canon, but Constantine aging in real time doesn't line up with the main timeline at all so its confusing.

I think Hitman is clearly canon at the very least.

Then there's ones that are very obviously completely disconnected like Preacher and Transmetropolitan. Is there an official consensus on what's in continuity?