Malware Activity: Top-level Domains
Quarter over Quarter Comparison:
April 1, 2021 - June 30, 2021

For purposes of observing change over time, it is useful to compare measurements and metrics over successive reporting periods. Such comparisons illustrate whether malware activities are increasing or decreasing, and where such changes are occurring. Such comparisons can identify TLDs that are persistently abused or exploited to host malware. Investigators or policy makers may focus on these for deeper analyses.

In the table below, we compare number of domains reported for hosting malware in TLDs for the two consecutive quarters.

Ranking of TLDs by Malware Domains, Quarter over Quarter (April to June 2021)

TLDs with a minimum of 30,000 domains under management and 25 malware domains

Number of Malware Domains
Rank TLD January to March 2021 April to June 2021 ▼
1 com 9,746 8,026 (-18%)
2 ▲ +1* ru 1,088 997 (-8%)
3 ▲ +1 xyz 455 819 (+80%)
4 ▲ +19 buzz 90 666 (+640%)
5 ▼ -3 net 1,789 630 (-65%)
6 br 385 565 (+47%)
7 ▼ -2 org 423 467 (+10%)
8 ▼ -1 top 335 391 (+17%)
9 in 299 351 (+17%)
10 ▲ +4 xn--p1ai 129 332 (+157%)
11 ▼ -3 cn 322 278 (-14%)
12 ▼ -2 info 245 214 (-13%)
13 N/R** vip 15 191 (+1,173%)
14 ▼ -2 uk 166 171 (+3%)
15 ▲ +5 online 103 159 (+54%)
16 ▼ -1 co 124 156 (+26%)
17 ▲ +41 cloud 29 153 (+428%)
18 ▼ -5 de 151 130 (-14%)
19 ▼ -1 za 112 121 (+8%)
20 ▲ +1 au 102 107 (+5%)

* Indicates change over prior quarter

** Indicates not ranked in prior quarter; either domains under management or number of malware domains did not meet minimum threshold for ranking

Quarter over Quarter Comparisons of:

Key Statistics

Activity in TLDs

Activity in Domain Registrars

Activity in Hosting Networks (ASNs)