The site is under maintenance.
Most probably the CPANTS databases are being regenerated from scratch behind the scenes due to the major change in Kwalitee metrics or the update of relevant modules/perl. Usually this maintenance takes about a day or two, and some of the information may be old or missing tentatively. Sorry for the inconvenience.
IPC-PubSub-0.29 has the following 3 errors.
|meta_yml_conforms_to_known_spec||License 'MIT' is invalid (license) [Validation: 1.3]|
|valid_signature||WARNING: This key is not certified with a trusted signature!
Primary key fingerprint: C361 0793 B631 337F BF6F C7BA 31F9 5625 9640 6EA0