SSL Grade Leaderboard: Top 100 Websites
Scanned from 20,000 top global websites · Updated 2026-11-08
| # | Domain | Grade | Score | 30d trend | Δ | TLS | Issuer | HSTS | Expires |
|---|---|---|---|---|---|---|---|---|---|
| 8901 | cargo.site | A | 95 | — | – | TLS1.2 | Amazon RSA 2048 M04 | — | 188 d |
| 8902 | cargocollective.com | A | 95 | — | – | TLS1.2 | Amazon RSA 2048 M04 | — | 94 d |
| 8903 | cargoplus.cn | A | 95 | — | – | TLS1.2 | GlobalSign GCC R6 AlphaSSL CA 2025 | — | 51 d |
| 8904 | caring.com | A | 95 | — | – | TLS1.2 | Amazon RSA 2048 M01 | 119 d | |
| 8905 | caritas.de | A | 95 | — | – | TLS1.2 | RapidSSL TLS RSA CA G1 | 68 d | |
| 8906 | carmagazine.co.uk | A | 95 | — | – | TLS1.2 | Amazon RSA 2048 M01 | 141 d | |
| 8907 | casio.com | A | 95 | — | – | TLS1.2 | Amazon RSA 2048 M04 | — | 128 d |
| 8908 | castillalamancha.es | A | 95 | — | – | TLS1.2 | GlobalSign GCC R46 OV TLS CA 2025 | 165 d | |
| 8909 | cau.edu.cn | A | 95 | — | – | TLS1.2 | GlobalSign GCC R46 OV TLS CA 2025 | — | 145 d |
| 8910 | caudjlab.com | A | 95 | — | – | TLS1.2 | Let's Encrypt | — | 71 d |
| 8911 | ccidnet.com | A | 95 | — | — | TLS1.2 | Encryption Everywhere DV TLS CA - G2 | — | 123 d |
| 8912 | ccohs.ca | A | 95 | — | – | TLS1.2 | Amazon RSA 2048 M01 | 169 d | |
| 8913 | cdw.com | A | 95 | — | – | TLS1.2 | Sectigo Public Server Authentication CA EV R36 | 180 d | |
| 8914 | cea.fr | A | 95 | — | – | TLS1.2 | GEANT TLS RSA 1 | — | 104 d |
| 8915 | ceair.com | A | 95 | — | – | TLS1.2 | SHECA OV TLS RSA CA A1 | — | 132 d |
| 8916 | cemashko.ru | A | 95 | — | – | TLS1.2 | Google Trust Services | — | 64 d |
| 8917 | cemat-asia.com | A | 95 | — | – | TLS1.2 | Encryption Everywhere DV TLS CA - G2 | — | 85 d |
| 8918 | cencenelec.eu | A | 95 | — | – | TLS1.2 | GlobalSign RSA OV SSL CA 2018 | 81 d | |
| 8919 | census.gov | A | 95 | — | – | TLS1.2 | DigiCert Global G2 TLS RSA SHA256 2020 CA1 | 146 d | |
| 8920 | ceskatelevize.cz | A | 95 | — | – | TLS1.2 | GeoTrust TLS RSA CA G1 | — | 35 d |
| 8921 | cgtn.com | A | 95 | — | — | TLS1.2 | GeoTrust G2 TLS CN RSA4096 SHA256 2022 CA1 | — | 127 d |
| 8922 | chalkbeat.org | A | 95 | — | – | TLS1.2 | Amazon RSA 2048 M04 | — | 70 d |
| 8923 | championat.com | A | 95 | — | – | TLS1.2 | GlobalSign GCC R3 DV TLS CA 2020 | — | 98 d |
| 8924 | channel4.com | A | 95 | — | – | TLS1.2 | Amazon RSA 2048 M01 | 131 d | |
| 8925 | charitywater.org | A | 95 | — | – | TLS1.2 | GlobalSign Atlas R3 DV TLS CA 2025 Q4 | 63 d | |
| 8926 | charlierose.com | A | 95 | — | – | TLS1.2 | Let's Encrypt | 36 d | |
| 8927 | chemistryworld.com | A | 95 | — | – | TLS1.2 | Amazon RSA 2048 M01 | 95 d | |
| 8928 | chestnet.org | A | 95 | — | – | TLS1.2 | DigiCert Global G2 TLS RSA SHA256 2020 CA1 | — | 158 d |
| 8929 | chevrolet.com | A | 95 | — | – | TLS1.2 | DigiCert Global G2 TLS RSA SHA256 2020 CA1 | 125 d | |
| 8930 | chevron.com | A | 95 | — | – | TLS1.2 | DigiCert Global G2 TLS RSA SHA256 2020 CA1 | — | 59 d |
| 8931 | chicagobusiness.com | A | 95 | — | – | TLS1.2 | Amazon RSA 2048 M04 | — | 185 d |
| 8932 | china-heating.org.cn | A | 95 | — | – | TLS1.2 | Encryption Everywhere DV TLS CA - G2 | — | 77 d |
| 8933 | chinaadec.com | A | 95 | — | – | TLS1.2 | Encryption Everywhere DV TLS CA - G2 | — | 28 d |
| 8934 | chinaetea.com | A | 95 | — | – | TLS1.2 | Encryption Everywhere DV TLS CA - G2 | — | 58 d |
| 8935 | chinahighlights.com | A | 95 | — | – | TLS1.2 | ZeroSSL ECC DV SSL CA 2 | — | 49 d |
| 8936 | chinahr.com | A | 95 | — | – | TLS1.2 | GlobalSign RSA OV SSL CA 2018 | — | 64 d |
| 8937 | chinairn.com | A | 95 | — | – | TLS1.2 | Xcc Trust DV SSL CA | — | 140 d |
| 8938 | chosun.com | A | 95 | — | – | TLS1.2 | Thawte TLS RSA CA G1 | 53 d | |
| 8939 | chroniclelive.co.uk | A | 95 | — | – | TLS1.2 | Amazon RSA 2048 M01 | — | 57 d |
| 8940 | chrysler.com | A | 95 | — | – | TLS1.2 | Let's Encrypt | 85 d | |
| 8941 | chunichi.co.jp | A | 95 | — | – | TLS1.2 | Cybertrust Japan SureServer CA G4 | — | 145 d |
| 8942 | cigna.com | A | 95 | — | – | TLS1.2 | Sectigo Public Server Authentication CA OV R36 | 75 d | |
| 8943 | cisco.com | A | 95 | — | – | TLS1.2 | HydrantID Server CA O1 | 134 d | |
| 8944 | citi.com | A | 95 | — | – | TLS1.2 | DigiCert EV RSA CA G2 | — | 154 d |
| 8945 | citibank.com | A | 95 | — | – | TLS1.2 | DigiCert EV RSA CA G2 | — | 154 d |
| 8946 | citigroup.com | A | 95 | — | – | TLS1.2 | DigiCert EV RSA CA G2 | — | 154 d |
| 8947 | citizensinformation.ie | A | 95 | — | – | TLS1.2 | Amazon RSA 2048 M01 | — | 153 d |
| 8948 | citrix.com | A | 95 | — | – | TLS1.2 | DigiCert Global G2 TLS RSA SHA256 2020 CA1 | 95 d | |
| 8949 | clan.su | A | 95 | — | – | TLS1.2 | GlobalSign GCC R6 AlphaSSL CA 2025 | — | 35 d |
| 8950 | clarks.com | A | 95 | — | – | TLS1.2 | ZeroSSL RSA DV SSL CA 2 | 57 d |
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FAQ
How often is the SSL leaderboard updated?
Watched domains are scanned daily; the top-20K leaderboard refreshes full snapshots every Sunday.
How is the SSL grade calculated?
Protocol versions, cipher strength, certificate validity, HSTS and OCSP stapling are weighted into a 0-100 score, mapped to grades from A+ to F.
What does an A+ SSL rating mean?
A near-perfect TLS setup: TLS 1.3 enabled, strong cipher suites, full forward secrecy (PFS) and correctly deployed HSTS.
Methodology
CertH grades each domain via pure TLS handshakes (no server access required): certificate validity, key strength, protocol versions, HSTS and OCSP stapling are scored with a deduction model (100 minus itemized penalties) into a 0-100 score mapped to six grades from A+ to F. Daily snapshots accumulate into an auditable health trend.
What is an SSL grade?
An SSL grade (A+ through F) evaluates a website's overall TLS configuration: protocol versions, cipher strength, certificate validity and trust chain, HSTS and OCSP stapling. A higher grade means stronger resistance to man-in-the-middle attacks and data breaches.
Why track certificate health over time?
Expired certificates, CA switches and configuration regressions can silently drag a grade down. CertH daily snapshots record those changes so you can spot risk before failures, with auditable history as evidence.