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 |
|---|---|---|---|---|---|---|---|---|---|
| 6301 | sproutsocial.com | A+ | 100 | — | – | TLS1.3 | Amazon RSA 2048 M04 | 117 d | |
| 6302 | sqlservercentral.com | A+ | 100 | — | – | TLS1.3 | Let's Encrypt | 74 d | |
| 6303 | square-enix-games.com | A+ | 100 | — | – | TLS1.3 | Let's Encrypt | 79 d | |
| 6304 | squarespace.com | A+ | 100 | — | – | TLS1.3 | DigiCert Global G2 TLS RSA SHA256 2020 CA1 | 117 d | |
| 6305 | sram.com | A+ | 100 | — | – | TLS1.3 | Let's Encrypt | 83 d | |
| 6306 | sravni.ru | A+ | 100 | — | – | TLS1.3 | GlobalSign RSA OV SSL CA 2018 | 57 d | |
| 6307 | ss64.com | A+ | 100 | — | – | TLS1.3 | Let's Encrypt | 32 d | |
| 6308 | ssb.no | A+ | 100 | — | – | TLS1.3 | Google Trust Services | 42 d | |
| 6309 | ssh.com | A+ | 100 | — | – | TLS1.3 | Amazon RSA 2048 M04 | 90 d | |
| 6310 | ssllabs.com | A+ | 100 | — | – | TLS1.3 | DigiCert Global G2 TLS RSA SHA256 2020 CA1 | 93 d | |
| 6311 | stackblitz.com | A+ | 100 | — | – | TLS1.3 | Amazon RSA 2048 M01 | 117 d | |
| 6312 | stadt-zuerich.ch | A+ | 100 | — | – | TLS1.3 | DigiCert QV TLS ICA G1 | 64 d | |
| 6313 | stadtradeln.de | A+ | 100 | — | – | TLS1.3 | Let's Encrypt | 70 d | |
| 6314 | stan.store | A+ | 100 | — | – | TLS1.3 | Amazon RSA 2048 M04 | 61 d | |
| 6315 | stanfordchildrens.org | A+ | 100 | — | – | TLS1.3 | InCommon RSA OV SSL CA 3 | 47 d | |
| 6316 | starbucks.com | A+ | 100 | — | – | TLS1.3 | Sectigo Public Server Authentication CA OV E36 | 188 d | |
| 6317 | starfall.com | A+ | 100 | — | – | TLS1.3 | Go Daddy Secure Certificate Authority - G2 | 47 d | |
| 6318 | starlink.com | A+ | 100 | — | – | TLS1.3 | Let's Encrypt | 84 d | |
| 6319 | starnewsonline.com | A+ | 100 | — | – | TLS1.3 | Let's Encrypt | 76 d | |
| 6320 | startpage.com | A+ | 100 | — | – | TLS1.3 | Amazon RSA 2048 M04 | 174 d | |
| 6321 | startrek.com | A+ | 100 | — | — | TLS1.3 | Let's Encrypt | 0 d | |
| 6322 | starz.com | A+ | 100 | — | – | TLS1.3 | Amazon RSA 2048 M01 | 137 d | |
| 6323 | statefarm.com | A+ | 100 | — | – | TLS1.3 | DigiCert Global G2 TLS RSA SHA256 2020 CA1 | 152 d | |
| 6324 | statesmanjournal.com | A+ | 100 | — | – | TLS1.3 | Let's Encrypt | 76 d | |
| 6325 | statista.com | A+ | 100 | – | TLS1.3 | Amazon ECDSA 384 M01 | 194 d | ||
| 6326 | statmuse.com | A+ | 100 | — | – | TLS1.3 | Amazon RSA 2048 M04 | 98 d | |
| 6327 | statueofliberty.org | A+ | 100 | — | – | TLS1.3 | Let's Encrypt | 87 d | |
| 6328 | steinberg.net | A+ | 100 | — | – | TLS1.3 | GlobalSign GCC R6 AlphaSSL CA 2025 | 40 d | |
| 6329 | stellantis.com | A+ | 100 | — | – | TLS1.3 | GandiCert | 154 d | |
| 6330 | stellarinfo.com | A+ | 100 | — | – | TLS1.3 | DigiCert EV RSA CA G2 | 145 d | |
| 6331 | stephenwolfram.com | A+ | 100 | — | – | TLS1.3 | Let's Encrypt | 79 d | |
| 6332 | stepstone.de | A+ | 100 | — | – | TLS1.3 | Amazon RSA 2048 M01 | 176 d | |
| 6333 | stitchfix.com | A+ | 100 | — | – | TLS1.3 | Amazon RSA 2048 M01 | 154 d | |
| 6334 | stltoday.com | A+ | 100 | — | – | TLS1.3 | Google Trust Services | 86 d | |
| 6335 | stocktitan.net | A+ | 100 | — | – | TLS1.3 | Sectigo Public Server Authentication CA DV R36 | 77 d | |
| 6336 | stopbullying.gov | A+ | 100 | — | – | TLS1.3 | DigiCert Global G2 TLS RSA SHA256 2020 CA1 | 45 d | |
| 6337 | store.steampowered.com | A+ | 100 | — | – | TLS1.3 | Let's Encrypt | 73 d | |
| 6338 | storyblok.com | A+ | 100 | — | – | TLS1.3 | Amazon RSA 2048 M04 | 170 d | |
| 6339 | straightdope.com | A+ | 100 | — | – | TLS1.3 | Amazon RSA 2048 M04 | 113 d | |
| 6340 | straitstimes.com | A+ | 100 | — | – | TLS1.3 | Amazon ECDSA 256 M04 | 132 d | |
| 6341 | strasbourg.eu | A+ | 100 | — | – | TLS1.3 | Let's Encrypt | 47 d | |
| 6342 | stratechery.com | A+ | 100 | — | – | TLS1.3 | Google Trust Services | 28 d | |
| 6343 | strategy-business.com | A+ | 100 | — | – | TLS1.3 | DigiCert Global G2 TLS RSA SHA256 2020 CA1 | 64 d | |
| 6344 | strikingly.com | A+ | 100 | — | – | TLS1.3 | Let's Encrypt | 69 d | |
| 6345 | stripe.com | A+ | 100 | – | TLS1.3 | DigiCert G5 TLS ECC SHA384 2021 CA1 | 184 d | ||
| 6346 | stryker.com | A+ | 100 | — | – | TLS1.3 | GlobalSign GCC R46 OV TLS CA 2025 | 174 d | |
| 6347 | studentaid.gov | A+ | 100 | — | – | TLS1.3 | GeoTrust TLS RSA CA G1 | 156 d | |
| 6348 | studentbeans.com | A+ | 100 | — | – | TLS1.3 | Amazon RSA 2048 M04 | 115 d | |
| 6349 | studiobinder.com | A+ | 100 | — | – | TLS1.3 | SSL.com TLS Issuing RSA CA R1 | 116 d | |
| 6350 | stuff.co.nz | A+ | 100 | — | – | TLS1.3 | Amazon RSA 2048 M01 | 134 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.