I'm
planning to add the maxDiff on current block and maxDiff ever on informations on the Dashboard. You can verify it by yourself with your mining software as they calculate the shareDiff.
Sorry for this specific response but I've worked hard to address these issues and the
work is done and online and I still have ZERO miners on the pool since 1 year.

yes what now? Are you
still planning or is the
work done ? You should also watch your own support thread about the pool and give some helpful answers to
questions like this.
Answer has been made in pm : this functionnality is currently being made. Not necessary for proof of work, mining software have this data. But for a pleasing experience will add it when I will have time.
I work for free.
If my contribution to a better décentralisation and fair job doesn't please you, you can Switch to shitty solo pools.