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 |
|---|---|---|---|---|---|---|---|---|---|
| 3401 | upenn.edu | A | 100 | — | – | TLS1.3 | Let's Encrypt | 60 d | |
| 3402 | upgradedpoints.com | A | 100 | — | – | TLS1.3 | Let's Encrypt | 82 d | |
| 3403 | uploading.com | A | 100 | — | – | TLS1.3 | Let's Encrypt | — | 46 d |
| 3404 | upyun.com | A | 100 | — | – | TLS1.3 | GeoTrust G2 TLS CN RSA4096 SHA256 2022 CA1 | — | 161 d |
| 3405 | uqam.ca | A | 100 | — | – | TLS1.3 | Amazon RSA 2048 M04 | — | 159 d |
| 3406 | uquebec.ca | A | 100 | — | – | TLS1.3 | DigiCert Global G2 TLS RSA SHA256 2020 CA1 | — | 133 d |
| 3407 | urbanoutfitters.com | A | 100 | — | – | TLS1.3 | Google Trust Services | — | 48 d |
| 3408 | uregina.ca | A | 100 | — | – | TLS1.3 | Let's Encrypt | — | 59 d |
| 3409 | urfu.ru | A | 100 | — | – | TLS1.3 | GlobalSign GCC R3 DV TLS CA 2020 | — | 65 d |
| 3410 | uri.edu | A | 100 | — | – | TLS1.3 | Let's Encrypt | 86 d | |
| 3411 | uriweb.kr | A | 100 | — | – | TLS1.3 | Amazon RSA 2048 M04 | — | 152 d |
| 3412 | urldefense.com | A | 100 | — | – | TLS1.3 | Sectigo Public Server Authentication CA OV R36 | — | 143 d |
| 3413 | urologyhealth.org | A | 100 | — | – | TLS1.3 | Starfield TLS Intermediate CA DV - R1v1 | — | 68 d |
| 3414 | urssaf.fr | A | 100 | — | – | TLS1.3 | GeoTrust TLS RSA CA G1 | — | 161 d |
| 3415 | us.com | A | 100 | — | – | TLS1.3 | Let's Encrypt | — | 44 d |
| 3416 | us.org | A | 100 | — | – | TLS1.3 | Let's Encrypt | — | 46 d |
| 3417 | usability.gov | A | 100 | — | – | TLS1.3 | Let's Encrypt | — | 87 d |
| 3418 | usal.es | A | 100 | — | – | TLS1.3 | GEANT TLS RSA 1 | — | 169 d |
| 3419 | usanetwork.com | A | 100 | — | – | TLS1.3 | DigiCert Global G3 TLS ECC SHA384 2020 CA1 | 63 d | |
| 3420 | usbank.com | A | 100 | — | – | TLS1.3 | DigiCert Global G2 TLS RSA SHA256 2020 CA1 | — | 183 d |
| 3421 | usc.edu | A | 100 | — | – | TLS1.3 | Let's Encrypt | 67 d | |
| 3422 | usccb.org | A | 100 | — | – | TLS1.3 | Let's Encrypt | 73 d | |
| 3423 | usd.edu | A | 100 | — | – | TLS1.3 | GeoTrust TLS RSA CA G1 | — | 128 d |
| 3424 | usdebtclock.org | A | 100 | — | – | TLS1.3 | Let's Encrypt | — | 58 d |
| 3425 | userapi.com | A | 100 | — | – | TLS1.3 | HARICA DV TLS RSA | — | 93 d |
| 3426 | usercontent.one | A | 100 | — | – | TLS1.3 | Let's Encrypt | — | 65 d |
| 3427 | userway.org | A | 100 | — | – | TLS1.3 | Amazon RSA 2048 M01 | — | 120 d |
| 3428 | usfca.edu | A | 100 | — | – | TLS1.3 | Let's Encrypt | 46 d | |
| 3429 | usi.ch | A | 100 | — | – | TLS1.3 | Let's Encrypt | — | 50 d |
| 3430 | usma.edu | A | 100 | — | – | TLS1.3 | DigiCert Global G2 TLS RSA SHA256 2020 CA1 | — | 112 d |
| 3431 | ustraveldocs.com | A | 100 | — | – | TLS1.3 | Amazon RSA 2048 M01 | — | 122 d |
| 3432 | ustream.tv | A | 100 | — | – | TLS1.3 | DigiCert EV RSA CA G2 | — | 107 d |
| 3433 | usyd.edu.au | A | 100 | — | – | TLS1.3 | DigiCert Global G2 TLS RSA SHA256 2020 CA1 | — | 75 d |
| 3434 | uta.fi | A | 100 | — | – | TLS1.3 | GEANT TLS RSA 1 | — | 184 d |
| 3435 | utexas.edu | A | 100 | — | – | TLS1.3 | Let's Encrypt | — | 54 d |
| 3436 | uth.gr | A | 100 | — | – | TLS1.3 | GEANT TLS RSA 1 | — | 97 d |
| 3437 | utm.edu | A | 100 | — | – | TLS1.3 | Amazon RSA 2048 M01 | — | 131 d |
| 3438 | utro.ru | A | 100 | — | – | TLS1.3 | Let's Encrypt | — | 81 d |
| 3439 | utsandiego.com | A | 100 | — | – | TLS1.3 | Google Trust Services | — | 38 d |
| 3440 | uvigo.es | A | 100 | — | — | TLS1.3 | GEANT TLS RSA 1 | — | 11 d |
| 3441 | uvm.edu | A | 100 | — | – | TLS1.3 | InCommon RSA OV SSL CA 3 | — | 83 d |
| 3442 | uvt.nl | A | 100 | — | – | TLS1.3 | GEANT TLS RSA 1 | — | 182 d |
| 3443 | uwec.edu | A | 100 | — | – | TLS1.3 | Let's Encrypt | 41 d | |
| 3444 | uwindsor.ca | A | 100 | — | – | TLS1.3 | DigiCert Global G2 TLS RSA SHA256 2020 CA1 | — | 125 d |
| 3445 | uzh.ch | A | 100 | — | – | TLS1.3 | Let's Encrypt | — | 38 d |
| 3446 | v0.dev | A | 100 | — | – | TLS1.3 | Let's Encrypt | — | 72 d |
| 3447 | vagrantup.com | A | 100 | — | – | TLS1.3 | Let's Encrypt | — | 47 d |
| 3448 | valentino.com | A | 100 | — | – | TLS1.3 | GeoTrust TLS RSA CA G1 | 135 d | |
| 3449 | valvesoftware.com | A | 100 | — | – | TLS1.3 | Let's Encrypt | — | 74 d |
| 3450 | vanderbilt.edu | A | 100 | — | – | TLS1.3 | Amazon RSA 2048 M01 | — | 124 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.