At present, every place where the GUI links to a block, it links to the height (eg. https://testnet.dcrdata.org/block/408322).
It should probably link to the hash instead (eg. https://testnet.dcrdata.org/block/0000003347c2a60b24c04e90bef7451db450f166110daedd9203d0c87e4a20c7).
It is possible multiple blocks could be found for the same height, so using the hash will remove the chance of linking to an incorrect block.
At present, every place where the GUI links to a block, it links to the height (eg. https://testnet.dcrdata.org/block/408322).
It should probably link to the hash instead (eg. https://testnet.dcrdata.org/block/0000003347c2a60b24c04e90bef7451db450f166110daedd9203d0c87e4a20c7).
It is possible multiple blocks could be found for the same height, so using the hash will remove the chance of linking to an incorrect block.