Column

ODVR statistics

Resolver instances - Statistics of daily QPS averages for each resolver instance during the last 30 days before December 25, 2025

Server Max QPS Min QPS Trend Average
s-01 2 464 1 661 2 138
r-01 2 482 1 641 2 124
b-01 2 438 1 660 2 113
b-03 2 463 1 637 2 104
s-02 1 415 924 1 193
b-04 1 371 875 1 141
r-02 1 354 885 1 136
b-02 1 365 864 1 132

Return codes - Statistics of daily QPS averages for queries responded with a given RCODE during the last 30 days before December 25, 2025

RCODE Max QPS Min QPS Trend Average
NoError 12 932 8 029 10 862
NXDomain 1 672 1 248 1 492
ServFail 1 238 388 611
NotImp 280 23 79
Refused 48 33 38
YXDomain 0 0 0

Query types - Statistics of daily QPS averages for queries with a given QTYPE during the last 30 days before December 25, 2025

QTYPE Max QPS Min QPS Trend Average
A 8 119 5 394 6 933
AAAA 2 159 1 489 1 798
PTR 994 702 836
Other 828 595 715
NS 631 415 528
ANY 1 125 94 328
MX 413 25 130
TXT 131 34 63

Top domains

Top 1000 domains by client cardinality magnitude on December 24, 2025

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