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 |
|---|---|---|---|---|---|---|---|---|---|
| 11151 | umass.edu | B | 85 | — | – | TLS1.2 | InCommon RSA OV SSL CA 3 | — | 13 d |
| 11152 | unizar.es | B | 85 | — | – | TLS1.2 | GEANT TLS RSA 1 | 13 d | |
| 11153 | viadeo.com | B | 85 | — | – | TLS1.2 | Let's Encrypt | — | 16 d |
| 11154 | zippia.com | B | 85 | — | – | TLS1.2 | Sectigo Public Server Authentication CA DV R36 | 15 d | |
| 11155 | zjxxt.cn | B | 85 | — | – | TLS1.2 | Sectigo Public Server Authentication CA DV R36 | — | 25 d |
| 11156 | cnnturk.com | B | 84 | — | – | TLS1.3 | GlobalSign GCC R6 AlphaSSL CA 2025 | 25 d | |
| 11157 | rmit.edu.au | B | 84 | — | – | TLS1.3 | DigiCert Global G2 TLS RSA SHA256 2020 CA1 | 26 d | |
| 11158 | sabanciuniv.edu | B | 84 | — | – | TLS1.3 | GlobalSign RSA OV SSL CA 2018 | 18 d | |
| 11159 | cox.net | B | 82 | — | – | TLS1.2 | DigiCert Global G2 TLS RSA SHA256 2020 CA1 | — | 96 d |
| 11160 | mfa.gov.il | B | 82 | — | – | TLS1.2 | Sectigo Public Server Authentication CA OV R36 | — | 145 d |
| 11161 | tiscali.it | B | 82 | — | – | TLS1.2 | Sectigo Public Server Authentication CA OV R36 | 123 d | |
| 11162 | un.org | B | 82 | TLS1.2 | GlobalSign GCC R46 OV TLS CA 2025 | 134 d | |||
| 11163 | acme.com | B | 80 | — | – | TLS1.2 | Let's Encrypt | — | 61 d |
| 11164 | acquia.com | B | 80 | — | – | TLS1.3 | Sectigo Public Server Authentication CA OV R36 | 0 d | |
| 11165 | ankara.edu.tr | B | 80 | — | – | TLS1.3 | GeoTrust TLS RSA CA G1 | 6 d | |
| 11166 | api.whatsapp.com | B | 80 | – | TLS1.3 | DigiCert Global G2 TLS RSA SHA256 2020 CA1 | 4 d | ||
| 11167 | aru.ac.uk | B | 80 | — | – | TLS1.3 | Let's Encrypt | 8 d | |
| 11168 | avnet.com | B | 80 | — | – | TLS1.3 | GeoTrust TLS RSA CA G1 | — | 5 d |
| 11169 | bizcommunity.com | B | 80 | — | – | TLS1.3 | Let's Encrypt | — | 6 d |
| 11170 | bjs.com | B | 80 | — | – | TLS1.3 | DigiCert Global G3 TLS ECC SHA384 2020 CA1 | 7 d | |
| 11171 | brighton.ac.uk | B | 80 | — | – | TLS1.3 | DigiCert G2 TLS EU RSA4096 SHA384 2022 CA1 | 10 d | |
| 11172 | caissedesdepots.fr | B | 80 | — | – | TLS1.3 | DigiCert Global G2 TLS RSA SHA256 2020 CA1 | 11 d | |
| 11173 | cameo.com | B | 80 | — | – | TLS1.3 | Certainly Intermediate R1 | 7 d | |
| 11174 | catalyst.org | B | 80 | — | – | TLS1.3 | Certainly Intermediate R1 | 9 d | |
| 11175 | cdpts.cn | B | 80 | — | – | TLS1.3 | Encryption Everywhere DV TLS CA - G2 | — | 4 d |
| 11176 | concur.com | B | 80 | — | – | TLS1.3 | GeoTrust TLS RSA CA G1 | 11 d | |
| 11177 | condor.com | B | 80 | — | – | TLS1.3 | Let's Encrypt | — | 3 d |
| 11178 | cookpad.com | B | 80 | — | – | TLS1.3 | Certainly Intermediate R1 | 10 d | |
| 11179 | correctiv.org | B | 80 | — | – | TLS1.3 | Sectigo Public Server Authentication CA DV R36 | 6 d | |
| 11180 | cqhgff.cn | B | 80 | — | – | TLS1.3 | Let's Encrypt | 3 d | |
| 11181 | cyberinsider.com | B | 80 | — | – | TLS1.3 | Certainly Intermediate R1 | — | 9 d |
| 11182 | deutsche-rentenversicherung.de | B | 80 | — | – | TLS1.3 | Telekom Security ServerID OV Class 2 CA | — | 1 d |
| 11183 | dni.gov | B | 80 | — | – | TLS1.3 | GeoTrust TLS RSA CA G1 | — | 4 d |
| 11184 | doodlekit.com | B | 80 | — | – | TLS1.3 | ZeroSSL ECC DV SSL CA 2 | — | 9 d |
| 11185 | dtu.dk | B | 80 | — | – | TLS1.3 | GEANT TLS RSA 1 | — | 10 d |
| 11186 | ebrd.com | B | 80 | — | – | TLS1.3 | DigiCert Global G2 TLS RSA SHA256 2020 CA1 | 5 d | |
| 11187 | ecmwf.int | B | 80 | — | – | TLS1.3 | GEANT TLS RSA 1 | — | 3 d |
| 11188 | edn.com | B | 80 | — | – | TLS1.3 | DigiCert Global G3 TLS ECC SHA384 2020 CA1 | — | 4 d |
| 11189 | education.gov.in | B | 80 | — | – | TLS1.3 | Let's Encrypt | 7 d | |
| 11190 | eetimes.com | B | 80 | — | – | TLS1.3 | DigiCert Global G3 TLS ECC SHA384 2020 CA1 | — | 4 d |
| 11191 | ekstrabladet.dk | B | 80 | — | – | TLS1.3 | Certainly Intermediate R1 | 10 d | |
| 11192 | embedded.com | B | 80 | — | – | TLS1.3 | DigiCert Global G3 TLS ECC SHA384 2020 CA1 | — | 4 d |
| 11193 | entropia.de | B | 80 | — | – | TLS1.3 | Let's Encrypt | — | 0 d |
| 11194 | escardio.org | B | 80 | — | – | TLS1.3 | GandiCert | — | 0 d |
| 11195 | estadao.com.br | B | 80 | — | – | TLS1.3 | DigiCert Global G3 TLS ECC SHA384 2020 CA1 | — | 7 d |
| 11196 | facebook.com | B | 80 | – | TLS1.3 | DigiCert Global G2 TLS RSA SHA256 2020 CA1 | 4 d | ||
| 11197 | facebook.de | B | 80 | — | – | TLS1.3 | DigiCert Global G2 TLS RSA SHA256 2020 CA1 | — | 4 d |
| 11198 | faststone.org | B | 80 | — | – | TLS1.3 | Sectigo Public Server Authentication CA DV R36 | 5 d | |
| 11199 | fb.com | B | 80 | — | – | TLS1.3 | DigiCert Global G2 TLS RSA SHA256 2020 CA1 | — | 4 d |
| 11200 | fb.me | B | 80 | — | – | TLS1.3 | DigiCert Global G2 TLS RSA SHA256 2020 CA1 | — | 4 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.