Column

ODVR statistics

Resolver instances - Statistics of daily QPS averages for each resolver instance during the last 30 days before October 17, 2025

Server Max QPS Min QPS Trend Average
b-01 2 819 1 843 2 432
r-01 2 741 1 849 2 419
s-01 2 729 534 2 290
b-03 2 612 630 2 229
s-02 1 452 912 1 251
b-04 1 494 876 1 219
r-02 1 443 298 1 174
b-02 1 458 173 1 152

Return codes - Statistics of daily QPS averages for queries responded with a given RCODE during the last 30 days before October 17, 2025

RCODE Max QPS Min QPS Trend Average
NoError 12 637 8 135 10 829
ServFail 1 883 937 1 494
NXDomain 1 714 1 195 1 436
NotImp 439 118 300
Refused 125 78 107
YXDomain 0 0 0

Query types - Statistics of daily QPS averages for queries with a given QTYPE during the last 30 days before October 17, 2025

QTYPE Max QPS Min QPS Trend Average
A 8 393 5 264 6 814
AAAA 2 224 1 452 1 797
ANY 1 853 621 1 412
Other 1 137 710 923
PTR 945 610 801
NS 659 445 561
MX 616 24 131

Top domains

Top 1000 domains by client cardinality magnitude on October 16, 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