Defaults.Exposed › Stats › TLS & certificates
Who issues the most TLS certificates?
As of July 28, 2026 · census snapshot 2026-07-28
As of July 28, 2026, the largest certificate authority by live-domain count in the Defaults.Exposed census is Let's Encrypt at 52.62% of 212.0 million certificate-presenting domains, followed by GoDaddy at 18.61%.
| Certificate authority | Domains | Share |
|---|---|---|
| Let's Encrypt | 111,570,666 | 52.62% |
| GoDaddy | 39,449,065 | 18.61% |
| Google Trust Services | 36,619,251 | 17.27% |
| Sectigo | 7,225,526 | 3.41% |
| DigiCert | 3,946,417 | 1.86% |
| ZeroSSL | 2,524,801 | 1.19% |
| Amazon | 1,506,659 | 0.71% |
| Actalis | 1,108,050 | 0.52% |
| Cloudflare | 1,006,341 | 0.47% |
| GlobalSign | 916,597 | 0.43% |
Cite this
Statistic current as of July 28, 2026. Recomputed from the live census each edition; the number on this page and the machine-readable twin always match. Please cite Defaults.Exposed and link this page.
Defaults.Exposed, "Who issues the most TLS certificates?" (as of July 28, 2026). https://defaults.exposed/stats/who-issues-the-most-tls-certificates
Permalink:https://defaults.exposed/stats/who-issues-the-most-tls-certificates · Machine-readable:biggest-ca.json · Licence:open data
Methodology: how we grade the internet · Source data: defaults.exposed/data. Updated with each census edition.