Column

ODVR statistics

Resolver instances - Statistics of daily QPS averages for each resolver instance during the last 30 days before August 7, 2026

Server Max QPS Min QPS Trend Average
b-01 2 538 1 651 2 151
r-01 2 508 1 656 2 145
b-03 2 521 1 652 2 122
s-01 2 365 443 1 943
s-02 1 480 895 1 233
b-04 1 505 915 1 222
r-02 1 475 263 1 110
b-02 1 465 125 920

Return codes - Statistics of daily QPS averages for queries responded with a given RCODE during the last 30 days before August 7, 2026

RCODE Max QPS Min QPS Trend Average
NoError 12 525 5 535 8 940
NXDomain 1 940 913 1 402
ServFail 572 294 408
Refused 121 64 90
NotImp 163 0 23
YXDomain 0 0 0

Query types - Statistics of daily QPS averages for queries with a given QTYPE during the last 30 days before August 7, 2026

QTYPE Max QPS Min QPS Trend Average
A 7 893 3 613 5 774
AAAA 2 565 1 176 1 759
PTR 1 046 574 790
Other 823 374 593
NS 558 273 402
MX 652 27 187
TXT 226 40 81
ANY 423 1 79

Top domains

Top 1000 domains by client cardinality magnitude on August 6, 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