What gets read
Crossref
is it registered, and is the metadata complete
The ISSN Portal
does the ISSN exist and match the title
DOAJ
listed, and on what licence
The Keepers Registry
is anyone preserving it
Hijack registers
is there a known clone of this title
OpenAlex
what the open record says about its output
What this is not
Not a ranking and not an impact factor. It is what the public registers say today, with the date beside each one.
Reading a public register tells that register only that a request was made. It carries nothing about you.