Column

ODVR statistics

Resolver instances - Statistics of daily QPS averages for each resolver instance during the last 30 days before April 24, 2025

Server Max QPS Min QPS Trend Average
s-01 4 703 3 192 4 138
b-01 4 688 3 119 4 064
b-02 2 731 980 2 172
r-01 2 699 1 572 2 144

Return codes - Statistics of daily QPS averages for queries responded with a given RCODE during the last 30 days before April 24, 2025

RCODE Max QPS Min QPS Trend Average
NoError 11 995 6 547 10 264
NXDomain 2 566 982 1 480
ServFail 505 254 379
Refused 117 80 106
YXDomain 0 0 0

Query types - Statistics of daily QPS averages for queries with a given QTYPE during the last 30 days before April 24, 2025

QTYPE Max QPS Min QPS Trend Average
A 8 537 4 452 6 687
AAAA 1 889 1 283 1 693
Other 934 264 603
PTR 717 413 599
NS 687 351 577
DS 493 242 395
TXT 135 37 64
MX 128 18 44

Top domains

Top 1000 domains by client cardinality magnitude on April 23, 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