Row

Resolvers

Country analysis – daily QPS averages for queries originating from resolvers in a given country during the last 30 days before November 5, 2026

Country Max qps Min qps Trend Average
other 11 070 8 172 9 678
USA 10 318 8 681 9 430
Germany 5 223 4 460 4 851
Czechia 3 362 2 507 2 972
Netherlands 3 503 2 127 2 704
Brazil 2 524 1 842 2 202
Singapore 2 786 1 798 2 152
India 1 612 785 1 225
Ireland 1 141 728 960
France 1 093 834 932
UK 1 002 823 887
Russia 1 047 668 822
China 848 678 751
Hong Kong SAR China 839 577 697
Italy 836 561 672
Japan 1 484 453 651

Query type analysis – daily QPS averages for queries with a given QTYPE during the last 30 days before November 5, 2026

QTYPE Max qps Min qps Trend Average
A 24 364 20 038 22 214
NS 8 665 6 401 7 655
AAAA 5 600 4 455 5 030
DS 4 665 3 859 4 264
MX 828 481 652
DNSKEY 607 520 553
TXT 491 271 360
other 362 251 295
SOA 285 147 198

Traffic flows – average distribution of QPS since 2026-10-29

Authoritative servers

Server analysis – daily QPS averages for queries reaching an authoritative server in a given city during the last 30 days before November 5, 2026

City Max QPS Min QPS Trend Average
Frankfurt am Main 9 571 7 811 8 582
Praha 7 283 5 361 6 449
Singapore 6 440 4 728 5 452
Reston (VA) 5 660 4 107 4 658
São Paulo 3 435 2 595 3 019
London 2 921 2 380 2 662
Tokyo 2 941 1 799 2 323
Wien 1 964 1 273 1 601
Johannesburg 1 258 1 026 1 148
Seattle (WA) 948 599 810
Stockholm 917 546 803
Santiago de Chile 828 302 683
Kyiv 877 423 675
Bratislava 827 445 661
Milano 795 436 615
Sydney 902 421 583
undisclosed 496 377 443
Los Angeles (CA) 706 224 421

Response code analysis – daily QPS averages for queries responded with a given RCODE during the last 30 days before November 5, 2026

RCODE Max QPS Min QPS Trend Average
NoError 42 799 35 079 38 667
NXDomain 4 176 2 403 2 903
Refused 88 3 25
ServFail 1 0 0
FormErr 1 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 October 22, 2026)

IPv4
IPv6
Country Domains Servers Domains Servers
Czechia 1 179 550 3 148 1 096 481 1 121
United States 427 225 4 101 400 703 3 301
other 287 192 8 534 261 908 5 145
Italy 257 115 223 254 283 52
Sweden 217 445 159 216 438 92
United Kingdom 190 501 323 160 958 145
Slovakia 146 592 339 144 073 77
Germany 140 318 2 242 74 670 902

SLD networks

Location of authoritative DNS servers for second-level domains under .cz – autonomous systems (as of October 22, 2026)

IPv4
IPv6
AS Providers Domains Servers Domains Servers
AS14061 DigitalOcean, LLC 105 321 153 101 400 69
AS16509 Amazon.com, Inc.  293 947 2 273 278 911 2 073
AS208414 WEDOS Internet 273 943 11 273 933 9
AS24806 INTERNET CZ 229 177 127 224 982 43
AS25234 ACTIVE 24 184 158 5 184 158 5
AS29134 Webglobe 139 852 44 139 269 12
AS31034 Aruba 225 439 40 222 917 12
other other 1 215 165 16 416 929 713 8 612

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].