Row

Resolvers

Country analysis – daily QPS averages for queries originating from resolvers in a given country during the last 30 days before February 22, 2026

Country Max qps Min qps Trend Average
USA 8 427 6 423 7 095
other 5 861 4 980 5 444
Germany 5 263 2 968 3 624
Czechia 3 663 2 676 3 211
Netherlands 1 838 1 299 1 618
Singapore 1 634 990 1 228
France 1 300 1 076 1 188
Ireland 1 380 841 1 070
UK 1 157 813 1 015
China 1 226 804 970
Brazil 1 122 723 879
India 728 528 610
Sweden 702 418 572
Japan 881 333 525
Russia 551 426 475
Poland 436 316 365

Query type analysis – daily QPS averages for queries with a given QTYPE during the last 30 days before February 22, 2026

QTYPE Max qps Min qps Trend Average
A 18 339 14 781 16 532
NS 5 344 4 115 4 709
AAAA 4 178 2 868 3 274
DS 3 260 2 736 2 953
MX 891 469 677
DNSKEY 681 499 555
other 636 393 486
TXT 442 234 336

Traffic flows – average distribution of QPS since 2026-02-15

Authoritative servers

Server analysis – daily QPS averages for queries reaching an authoritative server in a given city during the last 30 days before February 22, 2026

City Max QPS Min QPS Trend Average
Frankfurt am Main 8 235 5 929 6 723
Praha 6 017 4 023 4 992
London 3 777 3 444 3 658
Singapore 3 312 2 363 2 806
São Paulo 2 587 1 969 2 223
Tokyo 2 562 1 734 2 073
Stockholm 1 714 969 1 236
Seattle (WA) 1 313 938 1 113
Wien 1 306 854 942
Bratislava 884 662 776
Reston (VA) 1 335 606 766
Johannesburg 672 434 563
undisclosed 533 388 458
Santiago de Chile 643 297 442
Kyiv 609 254 434
Milano 343 228 271
Los Angeles (CA) 460 183 264
Sydney 229 102 147

Response code analysis – daily QPS averages for queries responded with a given RCODE during the last 30 days before February 22, 2026

RCODE Max QPS Min QPS Trend Average
NoError 28 622 24 258 26 596
NXDomain 4 933 2 615 3 280
Refused 56 2 17
FormErr 2 0 0
ServFail 0 0 0
NotAuth 0 0 0
NotImp 0 0 0
BADSIG 0 0 0
BADVERS 0 0 0

Row

IP version

Traffic rate by IP version – time series of daily QPS averages for IPv4 and IPv6

Protocol

Traffic rate by transport protocol – time series of daily QPS averages for UDP and TCP

SLD countries

Location of authoritative DNS servers for second-level domains under .cz – countries (as of February 19, 2026)

IPv4
IPv6
Country Domains Servers Domains Servers
Czechia 1 214 202 3 283 1 109 924 1 130
United States 433 258 4 319 400 448 3 319
other 281 456 8 695 212 475 5 116
Italy 261 609 242 258 588 49
Sweden 225 125 162 224 033 91
United Kingdom 184 461 340 161 674 126
Slovakia 147 772 340 174 514 63
Germany 136 184 2 255 76 275 954

SLD networks

Location of authoritative DNS servers for second-level domains under .cz – autonomous systems (as of February 19, 2026)

IPv4
IPv6
AS Providers Domains Servers Domains Servers
AS14061 DigitalOcean, LLC 106 382 176 102 164 67
AS16509 Amazon.com, Inc.  292 925 2 292 274 632 2 083
AS208414 WEDOS Internet 269 647 9 269 639 4
AS24806 INTERNET CZ 231 913 134 227 343 38
AS25234 ACTIVE 24 189 450 6 189 450 6
AS29134 Webglobe 145 002 44 144 226 12
AS31034 Aruba 227 910 40 225 228 9
other other 1 265 289 16 935 947 332 8 629

Catchment areas

Mapping of countries to a destination DNS server that receives most of the traffic from a given country.

DNSSEC

Traffic rate by DNSSEC – time series of daily QPS averages by DNSSEC support
Whether a DNS query supports DNSSEC or not is determined from the EDNS0 flag DNSSEC OK (DO) [RFC 3225].