Column

ODVR statistics

Resolver instances - Statistics of daily QPS averages for each resolver instance during the last 30 days before March 23, 2026

Server Max QPS Min QPS Trend Average
r-01 3 620 1 748 2 813
b-01 3 545 1 756 2 794
b-03 3 552 1 688 2 765
s-02 2 339 1 077 1 636
r-02 2 441 387 1 604
b-02 2 425 259 1 585
b-04 1 660 597 1 365
s-01 2 481 0 497

Return codes - Statistics of daily QPS averages for queries responded with a given RCODE during the last 30 days before March 23, 2026

RCODE Max QPS Min QPS Trend Average
NoError 14 076 6 062 11 524
NXDomain 2 378 1 036 1 863
ServFail 1 540 374 845
NotImp 356 14 128
Refused 80 27 46
YXDomain 0 0 0

Query types - Statistics of daily QPS averages for queries with a given QTYPE during the last 30 days before March 23, 2026

QTYPE Max QPS Min QPS Trend Average
A 9 346 4 129 7 818
AAAA 2 530 1 161 2 000
PTR 941 495 792
Other 804 428 664
ANY 1 248 102 550
NS 667 282 507
MX 623 24 294
TXT 167 27 68

Top domains

Top 1000 domains by client cardinality magnitude on March 22, 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