Below are the top 20 TLDs listed in SURBL (unique counts).
Numbers on the left are counts of the domains in the TLDs on the right:

139707 com
84099 us
35852 work
35188 biz
25172 info
21489 net
20672 cloud
19263 icu
17043 life
13019 xyz
9133 world
9047 site
7903 review
7707 loan
7224 tokyo
6907 gdn
6860 live
6824 top
6562 bid
4862 ru

Below are the top 10 of abused redirectors (to our knowledge):

1.	bit.ly
2.	bit.do
3.	ow.ly
4.	goo.gl
5.	x.co
6.	rebrand.ly
7.	tinyurl.com
8.	t.co
9.	is.gd
10.	ht.ly

Last update: Sat May 25 14:00:05 UTC 2019 (updated every hour)