Column

ODVR statistics

Resolver instances - Statistics of daily QPS averages for each resolver instance during the last 30 days before February 17, 2026

Server Max QPS Min QPS Trend Average
b-01 2 712 1 711 2 291
r-01 2 858 1 713 2 280
s-01 2 670 430 2 165
b-03 2 680 586 2 121
s-02 1 614 1 002 1 345
b-02 1 564 966 1 273
r-02 1 561 941 1 268
b-04 1 611 464 1 256

Return codes - Statistics of daily QPS averages for queries responded with a given RCODE during the last 30 days before February 17, 2026

RCODE Max QPS Min QPS Trend Average
NoError 13 729 7 914 11 335
NXDomain 2 551 1 232 1 695
ServFail 769 396 572
NotImp 103 14 60
Refused 88 37 56
YXDomain 0 0 0

Query types - Statistics of daily QPS averages for queries with a given QTYPE during the last 30 days before February 17, 2026

QTYPE Max QPS Min QPS Trend Average
A 9 561 5 250 7 471
AAAA 2 291 1 506 1 851
PTR 902 654 806
Other 1 002 523 750
NS 731 407 538
ANY 414 96 263
MX 727 26 262

Top domains

Top 1000 domains by client cardinality magnitude on February 16, 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