Column

ODVR statistics

Resolver instances - Statistics of daily QPS averages for each resolver instance during the last 30 days before April 16, 2026

Server Max QPS Min QPS Trend Average
b-01 4 013 1 739 2 849
b-03 3 822 1 767 2 817
r-01 3 518 1 775 2 773
s-02 3 224 1 456 1 902
b-04 3 123 801 1 780
b-02 3 456 225 1 753
s-01 3 857 0 1 510
r-02 3 109 0 1 493

Return codes - Statistics of daily QPS averages for queries responded with a given RCODE during the last 30 days before April 16, 2026

RCODE Max QPS Min QPS Trend Average
NoError 15 629 7 119 11 580
NXDomain 2 534 1 248 1 863
ServFail 6 866 394 1 682
NotImp 2 193 8 462
Refused 75 35 53
YXDomain 0 0 0

Query types - Statistics of daily QPS averages for queries with a given QTYPE during the last 30 days before April 16, 2026

QTYPE Max QPS Min QPS Trend Average
A 9 639 4 835 7 574
AAAA 2 710 1 527 2 070
ANY 8 146 102 1 628
PTR 896 421 713
Other 891 482 643
NS 1 510 285 571
MX 953 23 374
TXT 1 478 29 226
CNAME 907 61 189

Top domains

Top 1000 domains by client cardinality magnitude on April 15, 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