I have had a couple encounters with this spammer, but only one where they left an actual IP for me to ban. The rest I have only the host name, much more difficult to track down.
Research them and you will know they are a formidable entity to track and ban. There is a lot of IP ranges to cover.
Observation:
hosted-by.leaseweb.com confirmed because they spammed me, so I have their IP address
Leaseweb Deutschland
46.165.250.0 – 46.165.251.255
46.165.251.153
hosted-by.leaseweb.com 108.59.8.80
162.210.196.130 hosted-by.leaseweb.com
Leaseweb is scraping with an anon bot called “Mozilla/4.0 (compatible; MSIE 5.0; Windows 98; DigExt)” and a bot “-”
91.109.16.0 – 91.109.23.255
95.211.142.0 – 95.211.144.255
Research:
hosted-by.leaseweb.com 95.211.238.228
5.79.65.34 5.79.64.0 – 5.79.127.255 5.79.64.0/18 NL-LEASEWEB
5.79.83.33
5.79.84.141
37.48.81.46
46.165.210.1 46.165.208.0 – 46.165.215.255 Leaseweb
46.165.210.41
46.165.251.155 46.165.250.0 – 46.165.251.255
66.249.66.189
83.149.112.24
85.17.28.207 85.17.0.0 – 85.17.255.255 85.17.0.0/16 LEASEWEB
85.17.79.7
85.17.134.129
85.17.207.124
91.109.18.79
94.75.208.164
95.211.0.112 95.211.0.0 – 95.211.255.255 95.211.0.0/16
95.211.13.252
95.211.33.54
95.211.69.178
95.211.81.72
95.211.109.155
95.211.117.4
95.211.138.27
95.211.138.27
95.211.149.206
95.211.169.45
95.211.172.4
95.211.183.129
95.211.216.35
95.211.224.48
95.211.226.29
95.211.226.29
95.211.226.37
162.210.196.97
178.162.154.214
178.162.199.233
198.7.57.51 198.7.56.0 – 198.7.63.255 198.7.56.0/21 LEASEWEB
198.7.57.254
198.7.63.170
199.58.87.151
207.244.39.61
207.244.66.33