Column

ODVR statistics

Resolver instances - Statistics of daily QPS averages for each resolver instance during the last 30 days before October 9, 2026

Server Max QPS Min QPS Trend Average
b-03 3 103 1 804 2 460
b-01 2 862 1 804 2 435
r-01 2 913 1 688 2 427
s-01 2 996 512 2 107
s-02 2 314 1 105 1 574
b-04 1 757 291 1 432
r-02 1 762 392 1 292
b-02 1 728 42 420

Return codes - Statistics of daily QPS averages for queries responded with a given RCODE during the last 30 days before October 9, 2026

RCODE Max QPS Min QPS Trend Average
NoError 14 249 4 756 8 862
NXDomain 4 780 889 2 057
ServFail 647 295 471
Refused 130 55 82
NotImp 13 0 2
BADSIG 0 0 0
BADVERS 0 0 0
YXDomain 0 0 0

Query types - Statistics of daily QPS averages for queries with a given QTYPE during the last 30 days before October 9, 2026

QTYPE Max QPS Min QPS Trend Average
A 10 495 3 094 6 307
AAAA 2 361 974 1 637
Other 1 882 621 950
PTR 1 266 553 805
NS 630 257 410
MX 447 31 97

Top domains

Top 1000 domains by client cardinality magnitude on October 8, 2026

DNS magnitude is a number in the range 0–10 expressing “popularity” of a domain based on client cardinality (number of unique client IP addresses). For details see Mayrhofer et al. (2000).

Column

Transport protocols

Daily QPS averages for transport protocols

IP versions

Daily QPS averages for IPv4 and IPv6