Column

ODVR statistics

Resolver instances - Statistics of daily QPS averages for each resolver instance during the last 30 days before September 4, 2026

Server Max QPS Min QPS Trend Average
r-01 2 635 1 657 2 138
b-01 2 577 1 659 2 125
b-03 2 592 1 645 2 101
s-01 2 309 450 1 452
s-02 1 677 945 1 270
b-04 1 642 928 1 250
r-02 816 236 525
b-02 975 105 179

Return codes - Statistics of daily QPS averages for queries responded with a given RCODE during the last 30 days before September 4, 2026

RCODE Max QPS Min QPS Trend Average
NoError 10 735 5 631 7 594
NXDomain 1 827 955 1 184
ServFail 488 232 343
Refused 106 65 73
NotImp 11 0 1
YXDomain 0 0 0

Query types - Statistics of daily QPS averages for queries with a given QTYPE during the last 30 days before September 4, 2026

QTYPE Max QPS Min QPS Trend Average
A 6 889 3 724 4 894
AAAA 2 030 1 202 1 497
PTR 897 591 687
Other 683 386 487
NS 493 261 339
MX 421 22 149
TXT 149 37 88

Top domains

Top 1000 domains by client cardinality magnitude on September 3, 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