TLS Certificate Authorities
Intermediate CAs seen on phishing sites tracked by phishunt, with operator, root chain and current active-site counts.
Certificate Authorities
60Active Phishing Sites
432| Certificate | Operator | Key type | Since | Root CA | Active sites |
|---|---|---|---|---|---|
| Let's Encrypt | Internet Security Research Group (ISRG) | RSA & ECDSA | 2015 | ISRG Root X1, ISRG Root X2 | 140 |
| Google Trust Services | Google Trust Services LLC | RSA & ECDSA | 2017 | GTS Root R1, GTS Root R4 | 59 |
| WE1 | Google Trust Services LLC | ECDSA | 2023 | GTS Root R4 | 57 |
| WR1 | Google Trust Services LLC | RSA | 2022 | GTS Root R1 | 42 |
| R12 | Internet Security Research Group (ISRG) | RSA | 2024 | ISRG Root X1 | 35 |
| WE2 | Google Trust Services LLC | ECDSA | 2023 | GTS Root R4 | 18 |
| SSL Corporation | SSL Corporation | RSA & ECDSA | 2016 | SSL.com Root Certification Authority RSA, SSL.com Root Certification Authority ECC | 15 |
| YE1 | Internet Security Research Group (ISRG) | ECDSA | 2025 | ISRG Root X2 (via Root YE) | 9 |
| R13 | Internet Security Research Group (ISRG) | RSA | 2024 | ISRG Root X1 | 8 |
| Sectigo Limited | Sectigo Limited | RSA & ECDSA | 1998 | USERTrust RSA Certification Authority, COMODO RSA Certification Authority | 7 |
| YR1 | Internet Security Research Group (ISRG) | RSA | 2025 | ISRG Root X1 (via Root YR) | 7 |
| YR2 | Internet Security Research Group (ISRG) | RSA | 2025 | ISRG Root X1 (via Root YR) | 7 |
| WR2 | Google Trust Services LLC | RSA | 2023 | GTS Root R1 | 6 |
| DigiCert Global G2 TLS RSA SHA256 2020 CA1 | DigiCert, Inc. | RSA | 2020 | DigiCert Global Root G2 | 5 |
| GlobalSign nv-sa | GlobalSign nv-sa | RSA & ECDSA | 1996 | GlobalSign Root CA, GlobalSign Atlas R3 | 4 |
| YE2 | Internet Security Research Group (ISRG) | ECDSA | 2025 | ISRG Root X2 (via Root YE) | 4 |
| Amazon RSA 2048 M02 | Amazon Trust Services LLC | RSA | 2022 | Amazon Root CA 1 | 3 |
| Amazon RSA 2048 M01 | Amazon Trust Services LLC | RSA | 2022 | Amazon Root CA 1 | 2 |
| Amazon RSA 2048 M03 | Amazon Trust Services LLC | RSA | 2023 | Amazon Root CA 1 | 1 |
| WR3 | Google Trust Services LLC | RSA | 2023 | GTS Root R1 | 1 |
| ZeroSSL ECC Domain Secure Site CA | ZeroSSL / Sectigo | ECDSA | 2020 | USERTrust ECC Certification Authority | 1 |
| ZeroSSL RSA Domain Secure Site CA | ZeroSSL / Sectigo | RSA | 2020 | USERTrust RSA Certification Authority | 1 |
| AlphaSSL CA - SHA256 - G2 | GlobalSign nv-sa (AlphaSSL brand) | RSA | 2014 | GlobalSign Root CA | 0 |
| AlphaSSL CA - SHA256 - G4 | GlobalSign nv-sa (AlphaSSL brand) | RSA | 2021 | GlobalSign Root CA - R6 | 0 |
| Amazon RSA 2048 M04 | Amazon Trust Services LLC | RSA | 2024 | Amazon Root CA 1 | 0 |
| Apple Public EV Server RSA CA 2 - G1 | Apple Inc. | RSA | 2020 | Apple Root CA - G3 | 0 |
| Apple Public Server RSA CA 12 - G1 | Apple Inc. | RSA | 2022 | Apple Root CA - G3 | 0 |
| Cloudflare Inc ECC CA-3 | Cloudflare, Inc. | ECDSA | 2019 | Baltimore CyberTrust Root | 0 |
| DigiCert TLS Hybrid ECC SHA384 2020 CA1 | DigiCert, Inc. | ECDSA | 2020 | DigiCert Global Root G2 | 0 |
| DigiCert TLS RSA SHA256 2020 CA1 | DigiCert, Inc. | RSA | 2020 | DigiCert Global Root CA | 0 |
| E5 | Internet Security Research Group (ISRG) | ECDSA | 2024 | ISRG Root X2 | 0 |
| E6 | Internet Security Research Group (ISRG) | ECDSA | 2024 | ISRG Root X2 | 0 |
| E7 | Internet Security Research Group (ISRG) | ECDSA | 2024 | ISRG Root X2 | 0 |
| E8 | Internet Security Research Group (ISRG) | ECDSA | 2024 | ISRG Root X2 | 0 |
| Encryption Everywhere DV TLS CA - G1 | DigiCert (Encryption Everywhere program) | RSA | 2017 | DigiCert Global Root CA | 0 |
| Entrust Certification Authority - L1K | Entrust, Inc. | RSA | 2015 | Entrust Root Certification Authority - G2 | 0 |
| Entrust Certification Authority - L1M | Entrust, Inc. | RSA | 2018 | Entrust Root Certification Authority - G2 | 0 |
| GTS CA 1C3 | Google Trust Services LLC | RSA | 2020 | GTS Root R1 | 0 |
| GTS CA 1D4 | Google Trust Services LLC | RSA | 2021 | GTS Root R1 | 0 |
| GeoTrust TLS RSA CA G1 | DigiCert (GeoTrust brand) | RSA | 2017 | DigiCert Global Root G2 | 0 |
| GlobalSign Atlas R3 DV TLS CA H2 2021 | GlobalSign nv-sa | RSA | 2021 | GlobalSign Root CA - R3 | 0 |
| Go Daddy Secure Certificate Authority - G2 | GoDaddy.com, LLC | RSA | 2011 | Go Daddy Root Certificate Authority - G2 | 0 |
| Microsoft Azure RSA TLS Issuing CA 03 | Microsoft Corporation | RSA | 2023 | DigiCert Global Root G2 | 0 |
| Microsoft Azure TLS Issuing CA 05 | Microsoft Corporation | RSA | 2020 | DigiCert Global Root G2 | 0 |
| R10 | Internet Security Research Group (ISRG) | RSA | 2024 | ISRG Root X1 | 0 |
| R11 | Internet Security Research Group (ISRG) | RSA | 2024 | ISRG Root X1 | 0 |
| R14 | Internet Security Research Group (ISRG) | RSA | 2024 | ISRG Root X1 | 0 |
| R3 | Internet Security Research Group (ISRG) | RSA | 2020 | ISRG Root X1 | 0 |
| RapidSSL TLS DV RSA Mixed SHA256 2020 CA-1 | DigiCert (RapidSSL brand) | RSA | 2020 | DigiCert Global Root G2 | 0 |
| RapidSSL TLS RSA CA G1 | DigiCert (RapidSSL brand) | RSA | 2017 | DigiCert Global Root G2 | 0 |
| Sectigo RSA Domain Validation Secure Server CA | Sectigo Limited | RSA | 2018 | USERTrust RSA Certification Authority | 0 |
| Sectigo RSA Organization Validation Secure Server CA | Sectigo Limited | RSA | 2018 | USERTrust RSA Certification Authority | 0 |
| Starfield Secure Certificate Authority - G2 | Starfield Technologies, LLC | RSA | 2011 | Starfield Root Certificate Authority - G2 | 0 |
| Thawte TLS RSA CA G1 | DigiCert (Thawte brand) | RSA | 2017 | DigiCert Global Root G2 | 0 |
| TrustAsia DV TLS RSA CA 2025 | TrustAsia Technologies, Inc. | RSA | 2025 | DigiCert Global Root G2 | 0 |
| TrustAsia RSA DV TLS CA G2 | TrustAsia Technologies, Inc. | RSA | 2021 | DigiCert Global Root G2 | 0 |
| TrustAsia TLS RSA CA | TrustAsia Technologies, Inc. | RSA | 2018 | DigiCert Global Root CA | 0 |
| WR4 | Google Trust Services LLC | RSA | 2024 | GTS Root R1 | 0 |
| ZeroSSL GmbH | ZeroSSL (apilayer GmbH) | RSA & ECDSA | 2018 | USERTrust RSA Certification Authority | 0 |
| cPanel, Inc. Certification Authority | cPanel, L.L.C. | RSA | 2018 | Sectigo / USERTrust | 0 |