Column

ODVR statistics

Resolver instances - Statistics of daily QPS averages for each resolver instance during the last 30 days before May 16, 2025

Server Max QPS Min QPS Trend Average
s-01 4 614 3 192 4 012
b-01 4 598 3 119 3 959
r-01 2 572 1 572 2 043
b-02 2 406 980 2 007

Return codes - Statistics of daily QPS averages for queries responded with a given RCODE during the last 30 days before May 16, 2025

RCODE Max QPS Min QPS Trend Average
NoError 11 954 6 547 9 936
NXDomain 1 687 982 1 306
ServFail 641 254 412
Refused 125 80 100
NotImp 5 2 3
YXDomain 0 0 0

Query types - Statistics of daily QPS averages for queries with a given QTYPE during the last 30 days before May 16, 2025

QTYPE Max QPS Min QPS Trend Average
A 7 795 4 452 6 475
AAAA 1 924 1 283 1 680
PTR 773 413 600
NS 691 351 571
Other 663 264 430
DS 458 242 384
MX 157 18 64
TXT 123 37 57

Top domains

Top 1000 domains by client cardinality magnitude on May 15, 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