Column

ODVR statistics

Resolver instances - Statistics of daily QPS averages for each resolver instance during the last 30 days before July 1, 2025

Server Max QPS Min QPS Trend Average
b-01 3 487 2 261 2 924
s-01 3 289 2 245 2 861
b-03 3 301 589 2 709
r-01 2 082 1 134 1 549
b-02 2 108 210 1 468
b-04 1 658 808 1 397

Return codes - Statistics of daily QPS averages for queries responded with a given RCODE during the last 30 days before July 1, 2025

RCODE Max QPS Min QPS Trend Average
NoError 12 132 8 002 10 304
NXDomain 1 888 1 157 1 460
ServFail 1 122 451 768
NotImp 254 3 117
Refused 174 61 91
YXDomain 0 0 0

Query types - Statistics of daily QPS averages for queries with a given QTYPE during the last 30 days before July 1, 2025

QTYPE Max QPS Min QPS Trend Average
A 7 820 5 287 6 693
AAAA 1 961 1 255 1 713
Other 951 580 777
PTR 793 462 637
NS 699 467 610
ANY 776 184 399
MX 755 20 271
TXT 184 33 81

Top domains

Top 1000 domains by client cardinality magnitude on June 30, 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