I forked this script back in 2014 when ensky.eu and colormedia.co were still operational. I don’t know why they don’t exist today. My suspicion is that they simply deadpooled — it happens too often these days…
In any case, here’s the script:

https://bad.goy.su/k0nsl-bench

This below is an example output of what the script will produce:

Colormedia Benchmark 0.1/a (forked by k0nsl)
Website  : k0nsl.org
Contact  : irc.k0nsl.org #k0nsl

General Information 

CPU :  AMD Ryzen 9 3900X 12-Core Processor
CPU Cores :  1
CPU frequency per core :  3792.870 MHz
Memory : 485 MB
Swap Space :  MB
Uptime : 0 days, 16 hours, 56 minutes
Kernel : 4.19.0-0.bpo.10-cloud-amd64

Network Benchmark 

Download Speed:  BuyVM (US): 9.98MB/s 
Download Speed:  DigitalOcean (US): 29.6MB/s 
Download Speed:  RamNode (US): 14.1MB/s 
Download Speed:  Incero (US): 2.65MB/s 
Download Speed:  Dacentec (USA): 19.3MB/s 
Download Speed:  HostHatch (EU): 3.95MB/s 
Download Speed:  DigitalOcean (EU): 10.4MB/s 
Download Speed:  RamNode (EU): 5.41MB/s 
Download Speed:  BuyVM (EU): 10.0MB/s 
Download Speed:  YourServer (EU): 995KB/s 

Disk Benchmark

I/O Performance [1]:  1.5 GB/s
I/O Performance [2]:  1.7 GB/s
I/O Performance [3]:  1.6 GB/s

CPU Benchmark

real	0m7.842s
user	0m7.833s
sys	0m0.005s