Column

ODVR statistics

Resolver instances - Statistics of daily QPS averages for each resolver instance during the last 30 days before February 6, 2026

Server Max QPS Min QPS Trend Average
b-01 2 706 1 711 2 276
r-01 2 751 1 695 2 252
s-01 2 530 430 2 079
b-03 2 680 465 2 059
s-02 1 557 995 1 299
b-04 1 522 918 1 233
b-02 1 498 915 1 217
r-02 1 545 914 1 211

Return codes - Statistics of daily QPS averages for queries responded with a given RCODE during the last 30 days before February 6, 2026

RCODE Max QPS Min QPS Trend Average
NoError 13 406 7 914 11 037
NXDomain 2 098 1 232 1 566
ServFail 769 383 567
NotImp 103 20 60
Refused 88 35 54
YXDomain 0 0 0

Query types - Statistics of daily QPS averages for queries with a given QTYPE during the last 30 days before February 6, 2026

QTYPE Max QPS Min QPS Trend Average
A 8 687 5 250 7 159
AAAA 2 291 1 383 1 790
PTR 1 001 654 820
Other 859 490 682
NS 731 407 531
ANY 414 126 268
MX 657 23 189
TXT 136 33 63

Top domains

Top 1000 domains by client cardinality magnitude on February 5, 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