By NFC Taginfo, you can use your mobile phone to check the chip data.
Here is Ultralight Chip. You can see the part named INFO that shows its manufacturer and IC type full name. And in Part NDEF, there is No data. In Part EXTRA, it shows its total memory and numbers of blocks in each sector. What is more, in Part TECH, there is the full data with communication protocol, UID (ID) Numbers of sectors. So if you want to learn more about the chip of your tag and card, you only open it on your mobile phone.