Column

ODVR statistics

Resolver instances - Statistics of daily QPS averages for each resolver instance during the last 30 days before July 24, 2026

Server Max QPS Min QPS Trend Average
r-01 2 645 1 669 2 229
b-03 2 661 1 657 2 219
b-01 2 784 653 2 143
s-01 2 610 7 1 944
b-02 4 049 172 1 556
s-02 3 223 915 1 458
b-04 3 055 915 1 433
r-02 3 036 8 1 297

Return codes - Statistics of daily QPS averages for queries responded with a given RCODE during the last 30 days before July 24, 2026

RCODE Max QPS Min QPS Trend Average
NoError 18 461 5 958 10 153
NXDomain 2 366 1 078 1 625
ServFail 2 003 294 563
Refused 121 65 92
NotImp 276 0 50
YXDomain 0 0 0

Query types - Statistics of daily QPS averages for queries with a given QTYPE during the last 30 days before July 24, 2026

QTYPE Max QPS Min QPS Trend Average
A 9 774 3 996 6 458
AAAA 3 640 1 211 1 903
PTR 1 046 569 816
Other 753 312 564
NS 2 161 273 563
MX 1 602 26 281
CNAME 2 450 62 231
TXT 1 125 42 215
ANY 715 1 160

Top domains

Top 1000 domains by client cardinality magnitude on July 23, 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