Column

ODVR statistics

Resolver instances - Statistics of daily QPS averages for each resolver instance during the last 30 days before March 9, 2026

Server Max QPS Min QPS Trend Average
b-01 3 309 1 756 2 431
r-01 3 316 1 745 2 431
b-03 3 280 893 2 287
s-01 2 670 0 1 645
s-02 1 723 1 069 1 431
b-02 1 697 259 1 332
r-02 1 684 387 1 331
b-04 1 660 464 1 304

Return codes - Statistics of daily QPS averages for queries responded with a given RCODE during the last 30 days before March 9, 2026

RCODE Max QPS Min QPS Trend Average
NoError 13 729 6 062 11 304
NXDomain 2 551 1 036 1 868
ServFail 1 344 374 607
NotImp 356 13 83
Refused 68 27 46
YXDomain 0 0 0

Query types - Statistics of daily QPS averages for queries with a given QTYPE during the last 30 days before March 9, 2026

QTYPE Max QPS Min QPS Trend Average
A 9 561 4 129 7 709
AAAA 2 268 1 161 1 881
PTR 941 495 778
Other 858 428 678
NS 667 282 514
ANY 1 227 85 298
MX 808 26 272
TXT 167 27 67

Top domains

Top 1000 domains by client cardinality magnitude on March 8, 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