Column

ODVR statistics

Resolver instances - Statistics of daily QPS averages for each resolver instance during the last 30 days before September 23, 2025

Server Max QPS Min QPS Trend Average
s-01 3 044 1 930 2 405
b-01 2 922 1 940 2 386
r-01 2 898 1 885 2 368
b-03 2 804 1 819 2 328
s-02 1 715 1 023 1 283
r-02 1 664 1 037 1 262
b-02 1 667 1 021 1 261
b-04 1 613 994 1 246

Return codes - Statistics of daily QPS averages for queries responded with a given RCODE during the last 30 days before September 23, 2025

RCODE Max QPS Min QPS Trend Average
NoError 13 477 8 232 10 798
NXDomain 3 241 1 399 1 784
ServFail 2 556 839 1 566
NotImp 642 118 290
Refused 111 89 102
YXDomain 0 0 0

Query types - Statistics of daily QPS averages for queries with a given QTYPE during the last 30 days before September 23, 2025

QTYPE Max QPS Min QPS Trend Average
A 7 962 5 295 6 875
AAAA 2 488 1 482 1 896
ANY 2 697 577 1 296
NS 3 739 449 955
Other 1 137 724 922
PTR 933 583 753
MX 758 26 247

Top domains

Top 1000 domains by client cardinality magnitude on September 22, 2025

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