Column

ODVR statistics

Resolver instances - Statistics of daily QPS averages for each resolver instance during the last 30 days before August 14, 2026

Server Max QPS Min QPS Trend Average
b-01 2 385 1 651 2 110
r-01 2 366 1 656 2 108
b-03 2 355 1 652 2 081
s-01 2 365 443 1 943
s-02 1 488 895 1 242
b-04 1 452 915 1 218
r-02 1 475 263 1 091
b-02 1 465 105 684

Return codes - Statistics of daily QPS averages for queries responded with a given RCODE during the last 30 days before August 14, 2026

RCODE Max QPS Min QPS Trend Average
NoError 12 525 5 535 8 854
NXDomain 1 940 913 1 347
ServFail 572 302 396
Refused 121 64 89
NotImp 37 0 15
YXDomain 0 0 0

Query types - Statistics of daily QPS averages for queries with a given QTYPE during the last 30 days before August 14, 2026

QTYPE Max QPS Min QPS Trend Average
A 7 893 3 613 5 668
AAAA 2 565 1 176 1 769
PTR 1 046 591 785
Other 962 377 624
NS 558 265 392
MX 652 27 213
TXT 122 40 69

Top domains

Top 1000 domains by client cardinality magnitude on August 13, 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