Geo in January had a switch to a new blockchain. The 1st link is some different coin, it's supply is 20milion and last transactions occured over 30 days ago. 2nd link (chainz) is part of old blockchain that is developer abandonded and coins from that chain can only be manually swapped with developers if coins were present on the wallet before the swap occured - therefore transfering old coins to a wallet and requesting manual swap is not going to be honored.
Only official exchanges trading Geo coins are Bittrex and Cryptopia, recently there were rumors of other exchanges offering Geo, but it has not been fully confirmed yet. Yobit used to trade Geocoin, but they did not participate in the swap and they remained trading old coin, those are worthless as they cannot be swapped.
As Geo is part of Ubiq network it uses it's block explorer -
https://ubiqscan.io/contract/0x500684ce0d4f04abedff3e54fcf8acc5e6cfc4bdThanks for the detailed explaination YoggYogg. For those people who had GEO left in their desktop wallets before the snapshot block taken at #1568125, they can make manual claims with the following form:
Yobit is still operating on the original POW blockchain which is now developer abandoned. I'm not familiar with that link you posted, but it appears that someone has likely created some scam versions of Geocoin on the ethereum network. As YoggYogg provided, the real GeoCoin project is part of the Ubiq Network and the explorer is found here: