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:

118919 com
32025 xyz
22046 site
21021 work
15693 life
14323 live
12194 info
11543 top
11151 icu
9965 biz
9198 fit
8556 ru
8074 net
6785 agency
6590 wang
6217 buzz
4557 vip
3916 tokyo
3913 world
3433 casa

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: Mon Feb 17 17:55:03 UTC 2020 (updated every hour)