Column

ODVR statistics

Resolver instances - Statistics of daily QPS averages for each resolver instance during the last 30 days before June 16, 2025

Server Max QPS Min QPS Trend Average
s-01 4 695 2 245 3 467
b-02 7 351 210 2 693
b-01 4 781 0 2 668
b-03 3 096 0 2 351
r-01 2 595 1 134 1 888
b-04 1 658 0 1 293
b-02-vm 0 0 0

Return codes - Statistics of daily QPS averages for queries responded with a given RCODE during the last 30 days before June 16, 2025

RCODE Max QPS Min QPS Trend Average
NoError 11 990 8 183 10 372
NXDomain 1 888 1 157 1 485
ServFail 1 304 451 764
Refused 100 61 87
NotImp 190 3 83
YXDomain 0 0 0

Query types - Statistics of daily QPS averages for queries with a given QTYPE during the last 30 days before June 16, 2025

QTYPE Max QPS Min QPS Trend Average
A 7 980 5 494 6 825
AAAA 1 995 1 255 1 727
PTR 724 462 620
NS 699 467 599
DS 449 295 382
Other 447 285 370
ANY 602 120 346
MX 755 20 245
TXT 120 32 53

Top domains

Top 1000 domains by client cardinality magnitude on June 15, 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