Column

ODVR statistics

Resolver instances - Statistics of daily QPS averages for each resolver instance during the last 30 days before June 15, 2026

Server Max QPS Min QPS Trend Average
b-01 2 735 1 689 2 271
r-01 2 701 1 692 2 263
b-03 2 756 1 697 2 237
b-04 1 926 1 011 1 417
s-02 1 990 1 010 1 405
r-02 4 1 2

Return codes - Statistics of daily QPS averages for queries responded with a given RCODE during the last 30 days before June 15, 2026

RCODE Max QPS Min QPS Trend Average
NoError 9 560 5 801 7 916
NXDomain 1 602 994 1 276
ServFail 457 249 332
Refused 53 37 46
NotImp 113 4 22
YXDomain 0 0 0

Query types - Statistics of daily QPS averages for queries with a given QTYPE during the last 30 days before June 15, 2026

QTYPE Max QPS Min QPS Trend Average
A 6 680 4 036 5 301
AAAA 1 671 1 082 1 360
PTR 670 461 607
Other 490 315 410
NS 546 265 350
MX 459 14 143
TXT 292 27 108
CNAME 241 60 100
ANY 289 11 57

Top domains

Top 1000 domains by client cardinality magnitude on June 14, 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