Overview

The following DNSSEC deployment statics come from the work of Viktor Dukhovni (Two Sigma), published by Wes Hardaker (USC/ISI) as part of the DNSSEC-Tools project.

Note: click on column names to sort the table.

Last Updated: Wed Feb 26 04:48:03 2020

Summary Statistics

The current numbers from the DANE/DNSSEC survey are:

Total number of DS Resource Record Sets:
10763885
Total number of working DNSKEYs:
10643145

DNSSEC Trend Graphs

The following graph depicts the number of signed delegations from public suffix list domains in our dataset.

DANE Trend graphs

Domains with signed MX and DANE records

The following graph depicts the number of domains that have deployed DANE/SMTP. Specifically, their zone is signed, their MX records all point to hosts that have DANE TLSA records.

Zones Hosting DANE Mail Servers

Many of the domains in the previous graph outsource or aggregate their mail servers such that the MX records point to out-of-domain mail servers (i.e. externally hosted mail providers). This graph depicts the number of DNS mail provider zones that have DANE records deployed for them.

DS Record count growth

The following graph shows the growth of observed DS record sets over time (i.e. the number of signed zones):

DNSSEC Deployment Statistics

The following tables summarize the deployment size and states of various DNSSEC parameters.

Parameter frequency

DNSKEY parameter frequency (1000 or more instances), by zone count:

KSK

kskalgsflagsprotoalg
29006925735
221020825737
381999325738
255960257310
3985565257313
89657257314

ZSK

zskalgsflagsprotoalg
2625525635
219209325637
374529725638
255800256310
2416104256313
79528256314

RSA key size distribution

RSA key size distribution (1000 or more instances), by zone count:

KSK

kskdomainsbits
723024096
56015452048
164531536
42271280
8811911024
8757512

ZSK

zskdomainsbits
331094096
5031462048
230691280
56516851024
8603512

RSA exponent distribution

domainsexponent
6549187\x010001
28360\x0100000001
287\x03
123\xff39
22\x40000003
17\xffff

Breakdown by TLD of secure delegations

This table shows the number of delegations with DS records (and thus indicating the subzone is signed). The table also shows the number of succesful DNSKEY lookups for domains under the given TLD, meaning the number of zones that the DNSKEYs within the subzone could be both retrieved and verified as authentic with DNSSEC. Note that reasons failure include both failures in DNS itself for the subzone (e.g. no reachable name servers) or because DNSSEC validation of the results failed.

(Only TLDs are considered where the number of securely delegated subzones is greater than 999)

TLDworkingtotal-DS%working
[signed-graph] [percent-graph] boston95199519100.00
[signed-graph] [percent-graph] bible12861286100.00
[signed-graph] [percent-graph] br57770257793599.96
[signed-graph] [percent-graph] xn--j6w193g3292329499.94
[signed-graph] [percent-graph] hk167671679499.84
[signed-graph] [percent-graph] is2259226399.82
[signed-graph] [percent-graph] ovh193121934799.82
[signed-graph] [percent-graph] mx164011643299.81
[signed-graph] [percent-graph] ee101391017499.66
[signed-graph] [percent-graph] lu2010201799.65
[signed-graph] [percent-graph] sk11881511925499.63
[signed-graph] [percent-graph] icu5032505299.60
[signed-graph] [percent-graph] fr39467939644499.55
[signed-graph] [percent-graph] de21760521858399.55
[signed-graph] [percent-graph] re3628364599.53
[signed-graph] [percent-graph] cam1031103699.52
[signed-graph] [percent-graph] be30814030973799.48
[signed-graph] [percent-graph] paris2606262199.43
[signed-graph] [percent-graph] nl3232640325187599.41
[signed-graph] [percent-graph] fi8782884099.34
[signed-graph] [percent-graph] art2241225799.29
[signed-graph] [percent-graph] dk23811323988399.26
[signed-graph] [percent-graph] app476174797299.26
[signed-graph] [percent-graph] no39896240203299.24
[signed-graph] [percent-graph] bzh1515152799.21
[signed-graph] [percent-graph] ch10386610470599.20
[signed-graph] [percent-graph] academy1028103799.13
[signed-graph] [percent-graph] page1139114999.13
[signed-graph] [percent-graph] pl45997146413099.10
[signed-graph] [percent-graph] tv4528457199.06
[signed-graph] [percent-graph] eu50014150525298.99
[signed-graph] [percent-graph] hu12383712517398.93
[signed-graph] [percent-graph] cz68752969520098.90
[signed-graph] [percent-graph] gov1187120198.83
[signed-graph] [percent-graph] studio1416143398.81
[signed-graph] [percent-graph] live2322235398.68
[signed-graph] [percent-graph] amsterdam4523458598.65
[signed-graph] [percent-graph] nrw2245227698.64
[signed-graph] [percent-graph] family1141115798.62
[signed-graph] [percent-graph] pro3042308798.54
[signed-graph] [percent-graph] dev326903320398.45
[signed-graph] [percent-graph] mobi1375139798.43
[signed-graph] [percent-graph] bank2262229998.39
[signed-graph] [percent-graph] se72952974154598.38
[signed-graph] [percent-graph] name1049106798.31
[signed-graph] [percent-graph] biz206342099298.29
[signed-graph] [percent-graph] org12322212539698.27
[signed-graph] [percent-graph] life1247127098.19
[signed-graph] [percent-graph] co223972281398.18
[signed-graph] [percent-graph] nu10358310561398.08
[signed-graph] [percent-graph] agency1595162798.03
[signed-graph] [percent-graph] it9658985498.01
[signed-graph] [percent-graph] info486264964597.95
[signed-graph] [percent-graph] io183331871897.94
[signed-graph] [percent-graph] nz1653168897.93
[signed-graph] [percent-graph] shop9167936497.90
[signed-graph] [percent-graph] me127871306597.87
[signed-graph] [percent-graph] network1550158597.79
[signed-graph] [percent-graph] net16691717069597.79
[signed-graph] [percent-graph] cloud6532668197.77
[signed-graph] [percent-graph] com1503539153785997.77
[signed-graph] [percent-graph] at127831308097.73
[signed-graph] [percent-graph] cc2647270997.71
[signed-graph] [percent-graph] link1056108197.69
[signed-graph] [percent-graph] rocks1223125297.68
[signed-graph] [percent-graph] us99641020197.68
[signed-graph] [percent-graph] digital1026105197.62
[signed-graph] [percent-graph] tech5138527197.48
[signed-graph] [percent-graph] pw1081110997.48
[signed-graph] [percent-graph] pm984101097.43
[signed-graph] [percent-graph] world2496256397.39
[signed-graph] [percent-graph] kr3509360497.36
[signed-graph] [percent-graph] brussels996102397.36
[signed-graph] [percent-graph] immo1609165497.28
[signed-graph] [percent-graph] space2411247997.26
[signed-graph] [percent-graph] blog1159119397.15
[signed-graph] [percent-graph] uk385013963197.15
[signed-graph] [percent-graph] one151501561097.05
[signed-graph] [percent-graph] solutions1148118397.04
[signed-graph] [percent-graph] best1792184797.02
[signed-graph] [percent-graph] cat1681173397.00
[signed-graph] [percent-graph] work1151118796.97
[signed-graph] [percent-graph] design1433147996.89
[signed-graph] [percent-graph] pt97281004396.86
[signed-graph] [percent-graph] xyz195432020596.72
[signed-graph] [percent-graph] es193302003796.47
[signed-graph] [percent-graph] store3882402496.47
[signed-graph] [percent-graph] online129911346796.47
[signed-graph] [percent-graph] email2794289796.44
[signed-graph] [percent-graph] site3479360896.42
[signed-graph] [percent-graph] ca5892611496.37
[signed-graph] [percent-graph] li1606166896.28
[signed-graph] [percent-graph] club3031318595.16
[signed-graph] [percent-graph] in3992420095.05
[signed-graph] [percent-graph] website1208127694.67
[signed-graph] [percent-graph] ru3780400494.41
[signed-graph] [percent-graph] frl3566378894.14
[signed-graph] [percent-graph] ro1449154393.91
[signed-graph] [percent-graph] au1718184992.92
[signed-graph] [percent-graph] lv3242361289.76

Thank you to data contributors!

We thank the following organizations that have submitted data that helped make these statistics possible: