Column

ODVR statistics

Resolver instances - Statistics of daily QPS averages for each resolver instance during the last 30 days before September 14, 2026

Server Max QPS Min QPS Trend Average
r-01 2 635 1 657 2 179
b-01 2 577 1 659 2 166
b-03 2 592 1 645 2 137
s-01 2 309 450 1 452
s-02 1 677 945 1 262
b-04 1 642 928 1 252
r-02 816 236 525
b-02 975 113 208

Return codes - Statistics of daily QPS averages for queries responded with a given RCODE during the last 30 days before September 14, 2026

RCODE Max QPS Min QPS Trend Average
NoError 10 735 5 631 7 572
NXDomain 1 827 955 1 238
ServFail 542 232 376
Refused 106 61 73
NotImp 4 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 14, 2026

QTYPE Max QPS Min QPS Trend Average
A 6 889 3 724 4 933
AAAA 2 030 1 202 1 473
PTR 897 593 692
Other 683 386 509
NS 493 261 366
TXT 199 37 117
MX 447 22 86

Top domains

Top 1000 domains by client cardinality magnitude on September 13, 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