SSL Grade Leaderboard: Top 100 Websites
Scanned from 20,000 top global websites · Updated 2026-11-07
| # | Domain | Grade | Score | 30d trend | Δ | TLS | Issuer | HSTS | Expires |
|---|---|---|---|---|---|---|---|---|---|
| 6201 | shiksha.com | A+ | 100 | — | – | TLS1.3 | DigiCert Global G3 TLS ECC SHA384 2020 CA1 | 118 d | |
| 6202 | shogakukan.co.jp | A+ | 100 | — | – | TLS1.3 | Amazon RSA 2048 M01 | 137 d | |
| 6203 | shop-pro.jp | A+ | 100 | — | – | TLS1.3 | GlobalSign GCC R3 DV TLS CA 2020 | 130 d | |
| 6204 | shop.com | A+ | 100 | — | – | TLS1.3 | Google Trust Services | 48 d | |
| 6205 | shopbop.com | A+ | 100 | — | – | TLS1.3 | Amazon RSA 2048 M04 | 80 d | |
| 6206 | shopify.com | A+ | 100 | TLS1.3 | Google Trust Services | 61 d | |||
| 6207 | shopping.yahoo.co.jp | A+ | 100 | — | – | TLS1.3 | Cybertrust Japan SureServer CA G4 | 107 d | |
| 6208 | shreveporttimes.com | A+ | 100 | — | – | TLS1.3 | Let's Encrypt | 76 d | |
| 6209 | shrm.org | A+ | 100 | — | – | TLS1.3 | Amazon RSA 2048 M04 | 162 d | |
| 6210 | shutterfly.com | A+ | 100 | — | – | TLS1.3 | Amazon RSA 2048 M01 | 88 d | |
| 6211 | sick.com | A+ | 100 | — | – | TLS1.3 | DigiCert Global G2 TLS RSA SHA256 2020 CA1 | 40 d | |
| 6212 | sidn.nl | A+ | 100 | — | – | TLS1.3 | GEANT TLS RSA 1 | 190 d | |
| 6213 | sierra.com | A+ | 100 | — | – | TLS1.3 | DigiCert Global G3 TLS ECC SHA384 2020 CA1 | 181 d | |
| 6214 | signify.com | A+ | 100 | — | – | TLS1.3 | Let's Encrypt | 37 d | |
| 6215 | signup.com | A+ | 100 | — | – | TLS1.3 | Amazon RSA 2048 M01 | 134 d | |
| 6216 | silabs.com | A+ | 100 | — | – | TLS1.3 | DigiCert Global G3 TLS ECC SHA384 2020 CA1 | 195 d | |
| 6217 | simon.com | A+ | 100 | — | – | TLS1.3 | DigiCert Global G2 TLS RSA SHA256 2020 CA1 | 141 d | |
| 6218 | simplenote.com | A+ | 100 | — | – | TLS1.3 | Google Trust Services | 35 d | |
| 6219 | simplilearn.com | A+ | 100 | — | – | TLS1.3 | Amazon RSA 2048 M04 | 104 d | |
| 6220 | singaporeair.com | A+ | 100 | — | – | TLS1.3 | DigiCert Global G3 TLS ECC SHA384 2020 CA1 | 147 d | |
| 6221 | singularityhub.com | A+ | 100 | — | – | TLS1.3 | Let's Encrypt | 40 d | |
| 6222 | sipc.org | A+ | 100 | — | – | TLS1.3 | GlobalSign GCC R46 EV TLS CA 2025 | 191 d | |
| 6223 | site.com | A+ | 100 | — | – | TLS1.3 | DigiCert Global G2 TLS RSA SHA256 2020 CA1 | 166 d | |
| 6224 | site.pro | A+ | 100 | — | – | TLS1.3 | Let's Encrypt | 53 d | |
| 6225 | sive.rs | A+ | 100 | — | – | TLS1.3 | Let's Encrypt | 83 d | |
| 6226 | sixt.com | A+ | 100 | — | – | TLS1.3 | Amazon RSA 2048 M01 | 185 d | |
| 6227 | sj-r.com | A+ | 100 | — | – | TLS1.3 | Let's Encrypt | 76 d | |
| 6228 | sk.ru | A+ | 100 | — | – | TLS1.3 | LiteSSL RSA CA 2025 | 176 d | |
| 6229 | skatteverket.se | A+ | 100 | — | – | TLS1.3 | DigiCert EV RSA CA G2 | 142 d | |
| 6230 | sketch.com | A+ | 100 | — | – | TLS1.3 | Amazon RSA 2048 M04 | 103 d | |
| 6231 | skimresources.com | A+ | 100 | — | – | TLS1.3 | Google Trust Services | 53 d | |
| 6232 | skoda-auto.com | A+ | 100 | — | – | TLS1.3 | Let's Encrypt | 69 d | |
| 6233 | skrill.com | A+ | 100 | — | – | TLS1.3 | Amazon RSA 2048 M04 | 95 d | |
| 6234 | sky.com | A+ | 100 | — | – | TLS1.3 | Sectigo Public Server Authentication CA OV R36 | 148 d | |
| 6235 | sky.de | A+ | 100 | — | – | TLS1.3 | DigiCert Global G2 TLS RSA SHA256 2020 CA1 | 88 d | |
| 6236 | skylinewebcams.com | A+ | 100 | — | – | TLS1.3 | GeoTrust TLS RSA CA G1 | 155 d | |
| 6237 | slack.com | A+ | 100 | — | – | TLS1.3 | Let's Encrypt | 59 d | |
| 6238 | slate.com | A+ | 100 | — | – | TLS1.3 | Let's Encrypt | 38 d | |
| 6239 | sleepfoundation.org | A+ | 100 | — | – | TLS1.3 | Google Trust Services | 86 d | |
| 6240 | slideserve.com | A+ | 100 | — | – | TLS1.3 | Sectigo Public Server Authentication CA DV R36 | 31 d | |
| 6241 | slideshare.net | A+ | 100 | – | TLS1.3 | Let's Encrypt | 30 d | ||
| 6242 | slido.com | A+ | 100 | — | – | TLS1.3 | Amazon RSA 2048 M04 | 137 d | |
| 6243 | sling.com | A+ | 100 | — | – | TLS1.3 | DigiCert Global G2 TLS RSA SHA256 2020 CA1 | 29 d | |
| 6244 | smallpdf.com | A+ | 100 | — | – | TLS1.3 | Amazon RSA 2048 M01 | 67 d | |
| 6245 | smartasset.com | A+ | 100 | — | – | TLS1.3 | Amazon RSA 2048 M01 | 194 d | |
| 6246 | smartrecruiters.com | A+ | 100 | — | – | TLS1.3 | Amazon RSA 2048 M04 | 174 d | |
| 6247 | smartsheet.com | A+ | 100 | — | – | TLS1.3 | Let's Encrypt | 52 d | |
| 6248 | smittenkitchen.com | A+ | 100 | — | – | TLS1.3 | Google Trust Services | 56 d | |
| 6249 | smokefree.gov | A+ | 100 | — | – | TLS1.3 | DigiCert Global G2 TLS RSA SHA256 2020 CA1 | 89 d | |
| 6250 | sms-murau.at | A+ | 100 | — | – | TLS1.3 | Let's Encrypt | 40 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.