Analysis of DNS Cache Effects on Query Distribution

Table 1

CN Malformed query classification.

Type	Count	Percent (/legitimate)	Percent (/total)
Legitimate	896,525,985	100	85.60
Undelegated TLD	39,552	0.005	0.004
Non-CN TLD	125,547,431	13.99	11.98
Recursion desired	2,262,502	2.52	2.16
Private source IP	15,713,796	1.23	1.05
Illegal name	1,208,211	0.35	0.30
Total	1,047,586,432	116.82	100