~/dnsniffer/issuers/fastest-growing
Fastest growing CAs
Certificate authorities ranked by growth in the number of domains they secure, measured . Beijing Xinchacha Credit Management leads at +4,394.29% over 90 days.
50 CAs
- 3,146 active▲ +4,394.29%+3,076 domains
- 56,243 active▲ +340.05%+43,462 domains
- 1,260 active▲ +134.64%+723 domains
- 4F54,484 active▲ +130.42%+2,538 domains
- 1,803 active▲ +97.48%+890 domains
- 663,755 active▲ +92.31%+318,603 domains
- 9,874 active▲ +86.16%+4,570 domains
- 1,884 active▲ +44.81%+583 domains
- 1,770 active▲ +43.32%+535 domains
- 1,044 active▲ +38.28%+289 domains
- 1,701 active▲ +37.62%+465 domains
- 8,868 active▲ +34.14%+2,257 domains
- 52,529 active▲ +31.14%+12,473 domains
- 2,774 active▲ +26.09%+574 domains
- 8,730 active▲ +24.47%+1,716 domains
- 16CDW3,425 active▲ +23.96%+662 domains
- 41,823 active▲ +21.12%+7,294 domains
- 45,864 active▲ +20.97%+7,951 domains
- 947,427 active▲ +20.69%+162,442 domains
- 3,777 active▲ +20.40%+640 domains
- 4,494 active▲ +18.26%+694 domains
- 4,074 active▲ +17.37%+603 domains
- 3,491 active▲ +16.60%+497 domains
- 24JoySSL10,716 active▲ +16.43%+1,512 domains
- 5,910 active▲ +15.95%+813 domains
- 26Certum159,633 active▲ +15.56%+21,490 domains
- 27sslTrus22,435 active▲ +15.53%+3,015 domains
- 28DNSPod9,319 active▲ +13.85%+1,134 domains
- 29Shoper16,881 active▲ +13.83%+2,051 domains
- 19,478 active▲ +13.61%+2,333 domains
- 31GeoSSL2,683 active▲ +12.87%+306 domains
- 50,310 active▲ +12.75%+5,689 domains
- 33GoDaddy63,378,448 active▲ +10.86%+6,206,675 domains
- 2,504 active▲ +10.36%+235 domains
- 35UniTrust4,174 active▲ +10.28%+389 domains
- 43,303 active▲ +10.09%+3,968 domains
- 37Verokey1,624 active▲ +10.03%+148 domains
- 61,270 active▲ +9.79%+5,465 domains
- 12,928 active▲ +9.77%+1,151 domains
- 16,908 active▲ +9.74%+1,500 domains
- 196,625 active▲ +9.27%+16,674 domains
- 42GoGetSSL49,417 active▲ +8.86%+4,022 domains
- 23,821,463 active▲ +8.79%+1,925,419 domains
- 2,912 active▲ +7.73%+209 domains
- 11,732 active▲ +7.39%+807 domains
- 1,448 active▲ +7.26%+98 domains
- 2,400 active▲ +5.82%+132 domains
- 686,258 active▲ +5.66%+36,776 domains
- 2,487 active▲ +5.56%+131 domains
- 1,181 active▲ +4.98%+56 domains
# CAs securing fewer than 1,000 active domains are excluded - percentage change on a handful of domains is noise, not a trend. Direction is shown as ▲/▼ and a signed number as well as colour. Baselines older than 31 August 2026 are estimated, not measured - see the note below the board.
- ? Which certificate authority is growing fastest?
- Beijing Xinchacha Credit Management, up +4,394.29% over the last 90 days (+3,076 domains) to 3,146 domains secured as of October 15, 2026.
- ? Why are small CAs excluded from this ranking?
- A CA going from 3 domains to 30 is a +900% change and would top any percentage leaderboard while meaning nothing. We only rank certificate authorities securing at least 1,000 active domains.
- ? Does growth here mean the CA issued more certificates?
- Not necessarily. Each domain is counted once, under the issuer of its most recent certificate, so a CA grows in this ranking by covering domains it did not previously cover - including domains that switched to it from another CA. Reissuing certificates for the same domains does not move the number.
- ? How reliable are these percentages right now?
- Daily measurement started on 31 August 2026. Until a full window of measured snapshots has accumulated, the baseline each percentage is measured against comes from a reconstruction of certificate first-seen dates rather than a count taken on the day. That reconstruction can only grow - a domain that switched CAs is credited to its current CA for its whole history - so early numbers on this board overstate growth. They firm up as measured history replaces the estimate.