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~/dnsniffer/issuers/ssl-com·rank #11

▸ How many domains does SSL.com secure?

663,755

active domains whose current TLS certificate was issued by SSL.com, as of - 0.28% of all attributed domains.

# rank #11 of all CAs# all records held: 678,723# subdomains: 1,888# intermediates: 23# United States, United Kingdom
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~/issuers/ssl-com/history·active domains
663,755
domains secured by SSL.com on 2026-10-15 · ▲ +523,325 (+372.66%) since 2025-06-30
77.6K239.9K402.1K564.3K726.6K2025-06-30: 140,430 active2025-07-31: 195,944 active2025-08-31: 197,375 active2025-09-30: 198,383 active2025-10-31: 198,383 active2025-11-30: 198,383 active2025-12-31: 213,828 active2026-01-31: 223,482 active2026-02-28: 223,482 active2026-03-31: 223,482 active2026-04-30: 270,893 active2026-05-31: 292,235 active2026-06-30: 345,152 active2026-07-31: 417,667 active2026-08-31: 417,740 active2026-09-01: 420,028 active2026-09-02: 425,526 active2026-09-03: 430,683 active2026-09-04: 432,735 active2026-09-05: 435,514 active2026-09-06: 438,043 active2026-09-07: 441,387 active2026-09-08: 445,430 active2026-09-09: 450,350 active2026-09-10: 453,862 active2026-09-11: 457,769 active2026-09-12: 461,662 active2026-09-13: 465,284 active2026-09-14: 471,488 active2026-09-15: 477,580 active2026-09-16: 484,660 active2026-09-17: 492,076 active2026-09-18: 498,427 active2026-09-19: 505,865 active2026-09-20: 512,003 active2026-09-21: 516,649 active2026-09-22: 523,452 active2026-09-23: 529,946 active2026-09-24: 538,816 active2026-09-25: 546,698 active2026-09-26: 553,155 active2026-09-27: 563,086 active2026-09-28: 570,098 active2026-09-29: 575,521 active2026-09-30: 583,624 active2026-10-01: 590,116 active2026-10-02: 596,124 active2026-10-03: 600,352 active2026-10-04: 603,680 active2026-10-05: 609,312 active2026-10-06: 620,632 active2026-10-07: 629,902 active2026-10-08: 634,036 active2026-10-09: 638,185 active2026-10-10: 643,370 active2026-10-11: 645,515 active2026-10-12: 646,917 active2026-10-13: 652,071 active2026-10-14: 658,079 active2026-10-15: 663,755 active2025-06-302026-10-15

# y-axis starts at 77.6K, not zero - domain counts move by fractions of a percent a day. Dashed segments are estimated: reconstructed from certificate first-seen dates before daily snapshots began, not measured on the day.

# change over time
30 days
▲ +38.98%
+186,175 domains
90 days
▲ +92.31%
+318,603 domains
1 year
▲ +234.58%
+465,372 domains
# intermediate CAs
Intermediate certificate authorities operating under SSL.com, with the number of active domains each currently secures.
intermediatecountrydomains
SSL.com TLS Issuing RSA CA R1United States363,145
Cloudflare TLS Issuing RSA CA 4United States265,449
SSL.com RSA SSL subCAUnited States16,066
Cloudflare TLS Issuing RSA CA 3United States15,333
TrustSafe TLS RSA SubCA 2United States3,152
SSL Secure Site CAUnited Kingdom292
SSL.com EV TLS Issuing RSA CA R1United States97
E-Tugra TLS RSA SubCA 2United States87
Domain The Net Technologies Ltd TLS Issuing RSA CA 4United States59
Entrust EV TLS Issuing RSA CA 1United States25
SwissNS TLS Issuing RSA CA 2United States25
Secure Site DV TLS G3 R31 CAUnited Kingdom13
SSL.com SecureTrust TLS OV Issuing RSA CA R2United States5
Securepeak TLS RSA CA 1United States3
SSL.com EV SSL Intermediate CA RSA R3United States2
3CX TLS Issuing RSA CA 2United States1
Cloudflare TLS Issuing ECC CA 3United States1
Entrust DV TLS Issuing RSA CA 1United States0
SSL.com OV TLS Issuing RSA CA 1United States0
OCLC TLS Issuing RSA CA 2United States0
Namirial S.p.A EV TLS Issuing RSA CA 1United States0
SSL.com TLS Issuing ECC CA R2United States0
Euronet TLS Issuing RSA CA 1United States0
# faq
? How many domains does SSL.com secure?
SSL.com is the certificate authority for 663,755 active domains as of October 15, 2026 - 0.28% of every domain DNSniffer can attribute to an issuer.
? Is SSL.com gaining or losing market share?
The number of domains secured by SSL.com has grown by 234.58% over the last year (+465,372 domains).
? Which intermediate CAs does SSL.com sign from?
We have seen 23 intermediates under SSL.com, the busiest being “SSL.com TLS Issuing RSA CA R1” with 363,145 domains. The full list, with per-intermediate counts, is on this page.
? Where does this number come from?
DNSniffer ingests Certificate Transparency logs continuously and records the issuer of the most recent certificate seen for each domain, then snapshots the per-issuer count once a day. It measures how much of the live web a CA currently secures, not how many certificates it has issued over its lifetime.
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