I have found a cool real-time indicator lately that I haven't seen before, yet the website is active for almost three years already.
The website's name is
cryptothis .
It has been updated around a month ago and the developer keeps working on it.
This is his post on bitcointalk where he announced this service:
https://bitcointalksearch.org/topic/cryptothis-live-updating-bitcoin-difficulty-visualizerestimator-site-2441008.
Please if you plan on meriting direct it to the creator and not me.
He added recently a button to copy all the stats to clipboard and paste them like this:
Latest Block: 637987 (9 minutes ago)
Current Pace: 109.9104% (932 / 847.96 expected, 84.04 ahead)
Current Difficulty: 15784217546288.15
Next Difficulty: between 16902474088622 and 17403946550334
Next Difficulty Change: between +7.0846% and +10.2617%
Previous Retarget: last Tuesday at 7:51 PM
Next Retarget (earliest): July 13, 2020 at 1:34 PM (in 6d 20h 22m 34s)
Next Retarget (latest): July 13, 2020 at 10:19 PM (in 7d 5h 8m 8s)
Projected Epoch Length: between 12d 17h 42m 12s and 13d 2h 27m 46s
I found it by chance when looking for difficulty and hash rate data. I don't remember seeing a difficulty adjustment estimation on other websites I use.
It also has a map with the current epoch and blocks belonging to it.