Column

ODVR statistics

Resolver instances - Statistics of daily QPS averages for each resolver instance during the last 30 days before May 10, 2026

Server Max QPS Min QPS Trend Average
r-01 3 379 1 751 2 508
b-01 3 311 1 706 2 482
b-03 3 251 1 711 2 471
s-01 3 345 512 2 286
s-02 1 839 1 025 1 469
b-04 1 856 977 1 460
b-02 1 961 202 1 353
r-02 1 719 0 1 125

Return codes - Statistics of daily QPS averages for queries responded with a given RCODE during the last 30 days before May 10, 2026

RCODE Max QPS Min QPS Trend Average
NoError 14 590 6 023 10 858
NXDomain 2 156 1 232 1 728
ServFail 3 713 256 1 268
NotImp 1 211 2 373
Refused 78 32 59
YXDomain 0 0 0

Query types - Statistics of daily QPS averages for queries with a given QTYPE during the last 30 days before May 10, 2026

QTYPE Max QPS Min QPS Trend Average
A 9 025 4 282 7 136
AAAA 2 742 1 119 2 047
ANY 4 488 6 1 280
Other 1 342 633 1 031
PTR 849 421 700
MX 629 20 293
DNSKEY 419 105 197

Top domains

Top 1000 domains by client cardinality magnitude on May 9, 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