Column

ODVR statistics

Resolver instances - Statistics of daily QPS averages for each resolver instance during the last 30 days before July 8, 2025

Server Max QPS Min QPS Trend Average
b-01 3 487 2 192 2 882
s-01 3 289 2 234 2 830
b-03 3 301 589 2 651
r-01 2 082 1 116 1 515
b-02 2 108 210 1 437
b-04 1 614 808 1 372

Return codes - Statistics of daily QPS averages for queries responded with a given RCODE during the last 30 days before July 8, 2025

RCODE Max QPS Min QPS Trend Average
NoError 12 132 7 787 10 046
NXDomain 2 118 1 157 1 506
ServFail 1 122 472 753
NotImp 254 3 109
Refused 174 61 93
YXDomain 0 0 0

Query types - Statistics of daily QPS averages for queries with a given QTYPE during the last 30 days before July 8, 2025

QTYPE Max QPS Min QPS Trend Average
A 7 820 5 243 6 571
AAAA 1 961 1 255 1 679
Other 951 580 786
PTR 793 462 628
NS 698 467 601
ANY 776 91 372
MX 749 20 263
TXT 761 33 127

Top domains

Top 1000 domains by client cardinality magnitude on July 7, 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