Column

ODVR statistics

Resolver instances - Statistics of daily QPS averages for each resolver instance during the last 30 days before October 25, 2025

Server Max QPS Min QPS Trend Average
r-01 2 727 1 849 2 389
b-01 2 819 1 798 2 388
s-01 2 763 1 500 2 346
b-03 2 694 1 569 2 289
s-02 1 520 912 1 225
r-02 1 443 883 1 200
b-04 1 395 864 1 177
b-02 1 423 173 1 123

Return codes - Statistics of daily QPS averages for queries responded with a given RCODE during the last 30 days before October 25, 2025

RCODE Max QPS Min QPS Trend Average
NoError 12 637 8 135 10 985
NXDomain 1 688 1 122 1 391
ServFail 2 439 581 1 367
NotImp 646 71 282
Refused 136 95 114
YXDomain 0 0 0

Query types - Statistics of daily QPS averages for queries with a given QTYPE during the last 30 days before October 25, 2025

QTYPE Max QPS Min QPS Trend Average
A 8 393 5 264 6 880
AAAA 2 086 1 510 1 787
ANY 2 781 357 1 340
Other 1 299 733 965
PTR 945 671 813
NS 628 463 563

Top domains

Top 1000 domains by client cardinality magnitude on October 24, 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