Column

ODVR statistics

Resolver instances - Statistics of daily QPS averages for each resolver instance during the last 30 days before September 22, 2026

Server Max QPS Min QPS Trend Average
r-01 2 751 1 751 2 314
b-01 2 691 1 725 2 290
b-03 2 731 1 675 2 273
s-01 2 309 450 1 452
s-02 1 689 960 1 347
b-04 1 698 960 1 344
r-02 816 236 525
b-02 975 113 300

Return codes - Statistics of daily QPS averages for queries responded with a given RCODE during the last 30 days before September 22, 2026

RCODE Max QPS Min QPS Trend Average
NoError 10 735 5 664 8 006
NXDomain 2 016 965 1 368
ServFail 542 293 410
Refused 106 61 74
NotImp 4 0 1
YXDomain 0 0 0

Query types - Statistics of daily QPS averages for queries with a given QTYPE during the last 30 days before September 22, 2026

QTYPE Max QPS Min QPS Trend Average
A 6 889 3 724 5 248
AAAA 2 030 1 221 1 549
PTR 897 602 697
Other 738 422 553
NS 493 282 388
TXT 240 69 155
MX 447 28 113

Top domains

Top 1000 domains by client cardinality magnitude on September 21, 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