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 |
|---|---|---|---|---|---|---|---|---|---|
| 8951 | clck.ru | A | 95 | — | – | TLS1.2 | GlobalSign GCC R46 DV TLS CA 2025 | — | 124 d |
| 8952 | cleveland.com | A | 95 | — | – | TLS1.2 | Amazon RSA 2048 M01 | — | 120 d |
| 8953 | cleveland19.com | A | 95 | — | – | TLS1.2 | Amazon RSA 2048 M04 | 83 d | |
| 8954 | clients.site | A | 95 | — | – | TLS1.2 | GlobalSign GCC R46 OV TLS CA 2025 | — | 94 d |
| 8955 | clover.com | A | 95 | — | – | TLS1.2 | RapidSSL TLS RSA CA G1 | 188 d | |
| 8956 | clubrunner.ca | A | 95 | — | – | TLS1.2 | Let's Encrypt | — | 86 d |
| 8957 | cmail19.com | A | 95 | — | – | TLS1.2 | DigiCert Global G2 TLS RSA SHA256 2020 CA1 | — | 109 d |
| 8958 | cmail20.com | A | 95 | — | – | TLS1.2 | DigiCert Global G2 TLS RSA SHA256 2020 CA1 | — | 109 d |
| 8959 | cmpassport.com | A | 95 | — | – | TLS1.2 | TrustAsia OV TLS RSA CA 2024 | — | 75 d |
| 8960 | cmu.ac.th | A | 95 | — | – | TLS1.2 | Sectigo Public Server Authentication CA DV R36 | 176 d | |
| 8961 | cmu.edu | A | 95 | — | – | TLS1.2 | InCommon RSA Server CA 2 | 72 d | |
| 8962 | cnblogs.com | A | 95 | — | – | TLS1.2 | Encryption Everywhere DV TLS CA - G2 | 95 d | |
| 8963 | cnki.net | A | 95 | — | – | TLS1.2 | GlobalSign RSA OV SSL CA 2018 | — | 121 d |
| 8964 | cnppri.com | A | 95 | — | — | TLS1.2 | GeoTrust TLS RSA CA G1 | — | 0 d |
| 8965 | cnr.it | A | 95 | — | — | TLS1.2 | GEANT TLS RSA 1 | — | 14 d |
| 8966 | coca-cola.com | A | 95 | — | – | TLS1.2 | Amazon RSA 2048 M01 | 68 d | |
| 8967 | coca-colacompany.com | A | 95 | — | – | TLS1.2 | Amazon RSA 2048 M01 | 127 d | |
| 8968 | cochrane.org | A | 95 | — | – | TLS1.2 | GeoTrust TLS RSA CA G1 | — | 45 d |
| 8969 | coggle.it | A | 95 | — | – | TLS1.2 | Amazon RSA 2048 M04 | 152 d | |
| 8970 | colorado.gov | A | 95 | — | – | TLS1.2 | Amazon RSA 2048 M01 | — | 96 d |
| 8971 | coloradocollege.edu | A | 95 | — | – | TLS1.2 | InCommon Intermediate CA - OVG2C | 97 d | |
| 8972 | comcast.net | A | 95 | — | – | TLS1.2 | Sectigo Public Server Authentication CA OV R36 | — | 62 d |
| 8973 | commerzbank.de | A | 95 | — | – | TLS1.2 | GlobalSign GCC R46 OV TLS CA 2025 | — | 138 d |
| 8974 | comparably.com | A | 95 | — | – | TLS1.2 | Amazon RSA 2048 M04 | — | 134 d |
| 8975 | computerra.ru | A | 95 | — | – | TLS1.2 | Let's Encrypt | 68 d | |
| 8976 | comvac-asia.com | A | 95 | — | – | TLS1.2 | Encryption Everywhere DV TLS CA - G2 | — | 85 d |
| 8977 | congreso.es | A | 95 | — | – | TLS1.2 | GEANT TLS RSA 1 | 95 d | |
| 8978 | connect.mail.ru | A | 95 | — | – | TLS1.2 | HARICA DV TLS RSA | — | 91 d |
| 8979 | control-webpanel.com | A | 95 | — | – | TLS1.2 | Let's Encrypt | 35 d | |
| 8980 | convertkit.com | A | 95 | — | – | TLS1.2 | Amazon RSA 2048 M04 | — | 100 d |
| 8981 | cookinglight.com | A | 95 | — | – | TLS1.2 | Amazon RSA 2048 M01 | — | 136 d |
| 8982 | copyscape.com | A | 95 | — | – | TLS1.2 | Sectigo Public Server Authentication CA DV R36 | — | 35 d |
| 8983 | corel.com | A | 95 | — | – | TLS1.2 | Amazon RSA 2048 M04 | 144 d | |
| 8984 | coreldraw.com | A | 95 | — | – | TLS1.2 | Amazon RSA 2048 M04 | 144 d | |
| 8985 | cornwalllive.com | A | 95 | — | – | TLS1.2 | Amazon RSA 2048 M01 | — | 57 d |
| 8986 | correios.com.br | A | 95 | — | – | TLS1.2 | Thawte TLS RSA CA G1 | 146 d | |
| 8987 | corriere.it | A | 95 | — | – | TLS1.2 | Let's Encrypt | — | 59 d |
| 8988 | corrieredellosport.it | A | 95 | — | – | TLS1.2 | Let's Encrypt | — | 30 d |
| 8989 | couchsurfing.org | A | 95 | — | – | TLS1.2 | Amazon RSA 2048 M01 | — | 119 d |
| 8990 | counseling.org | A | 95 | — | – | TLS1.2 | Let's Encrypt | 78 d | |
| 8991 | courrierinternational.com | A | 95 | — | – | TLS1.2 | GlobalSign Atlas R3 DV TLS CA 2025 Q4 | 102 d | |
| 8992 | coventrytelegraph.net | A | 95 | — | – | TLS1.2 | Amazon RSA 2048 M01 | — | 57 d |
| 8993 | covers.com | A | 95 | — | – | TLS1.2 | DigiCert Global G2 TLS RSA SHA256 2020 CA1 | — | 83 d |
| 8994 | cp24.com | A | 95 | — | – | TLS1.2 | Amazon RSA 2048 M01 | — | 99 d |
| 8995 | craigslist.org | A | 95 | — | – | TLS1.2 | DigiCert Global G3 TLS ECC SHA384 2020 CA1 | 85 d | |
| 8996 | crainsnewyork.com | A | 95 | — | – | TLS1.2 | Amazon RSA 2048 M01 | — | 185 d |
| 8997 | crazyegg.com | A | 95 | — | – | TLS1.2 | Amazon RSA 2048 M01 | 189 d | |
| 8998 | cricinfo.com | A | 95 | — | – | TLS1.2 | Amazon RSA 2048 M01 | 75 d | |
| 8999 | croix-rouge.fr | A | 95 | — | – | TLS1.2 | Thawte TLS RSA CA G1 | 174 d | |
| 9000 | cronista.com | A | 95 | — | – | TLS1.2 | Amazon RSA 2048 M01 | — | 95 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.