Column

ODVR statistics

Resolver instances - Statistics of daily QPS averages for each resolver instance during the last 30 days before July 3, 2026

Server Max QPS Min QPS Trend Average
b-03 2 870 1 697 2 414
r-01 2 856 1 692 2 406
b-01 2 939 653 2 376
b-02 4 049 588 1 888
s-02 3 223 1 089 1 666
b-04 3 055 1 022 1 654
s-01 2 610 0 1 037
r-02 3 036 1 728

Return codes - Statistics of daily QPS averages for queries responded with a given RCODE during the last 30 days before July 3, 2026

RCODE Max QPS Min QPS Trend Average
NoError 18 461 5 815 10 183
NXDomain 2 630 1 045 1 705
ServFail 2 003 319 560
Refused 114 38 65
NotImp 173 5 44
YXDomain 0 0 0

Query types - Statistics of daily QPS averages for queries with a given QTYPE during the last 30 days before July 3, 2026

QTYPE Max QPS Min QPS Trend Average
A 9 774 4 036 6 532
AAAA 3 640 1 102 1 849
PTR 972 559 732
NS 2 161 286 595
Other 753 323 554
MX 1 602 23 365
CNAME 2 450 72 250
TXT 1 125 53 240
ANY 587 16 134

Top domains

Top 1000 domains by client cardinality magnitude on July 2, 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