Column

ODVR statistics

Resolver instances - Statistics of daily QPS averages for each resolver instance during the last 30 days before October 12, 2026

Server Max QPS Min QPS Trend Average
b-03 3 103 1 804 2 446
b-01 2 862 1 804 2 416
r-01 2 913 1 688 2 410
s-01 2 996 512 2 171
s-02 2 314 1 105 1 582
b-04 1 757 291 1 429
r-02 1 762 392 1 329
b-02 1 728 42 532

Return codes - Statistics of daily QPS averages for queries responded with a given RCODE during the last 30 days before October 12, 2026

RCODE Max QPS Min QPS Trend Average
NoError 14 249 4 756 9 175
NXDomain 4 780 889 2 200
ServFail 658 295 494
Refused 133 55 87
NotImp 16 0 3
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 12, 2026

QTYPE Max QPS Min QPS Trend Average
A 10 495 3 094 6 533
AAAA 2 361 974 1 698
Other 1 911 621 1 054
PTR 1 427 553 870
NS 630 257 428
MX 447 31 99

Top domains

Top 1000 domains by client cardinality magnitude on October 11, 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