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 |
|---|---|---|---|---|---|---|---|---|---|
| 9651 | nyu.edu | A | 95 | — | – | TLS1.2 | InCommon RSA OV SSL CA 3 | — | 84 d |
| 9652 | nyulangone.org | A | 95 | — | – | TLS1.2 | DigiCert Global G2 TLS RSA SHA256 2020 CA1 | 61 d | |
| 9653 | oeaw.ac.at | A | 95 | — | – | TLS1.2 | GEANT TLS RSA 1 | — | 94 d |
| 9654 | oebb.at | A | 95 | — | – | TLS1.2 | DigiCert Global G2 TLS RSA SHA256 2020 CA1 | 31 d | |
| 9655 | oilprice.com | A | 95 | — | – | TLS1.2 | Amazon RSA 2048 M04 | 74 d | |
| 9656 | ok.gov | A | 95 | — | – | TLS1.2 | Sectigo Public Server Authentication CA OV R36 | — | 59 d |
| 9657 | omeka.net | A | 95 | — | – | TLS1.2 | Let's Encrypt | 42 d | |
| 9658 | omnigroup.com | A | 95 | — | – | TLS1.2 | Let's Encrypt | 55 d | |
| 9659 | oneplus.com | A | 95 | — | – | TLS1.2 | GeoTrust G2 TLS CN RSA4096 SHA256 2022 CA1 | 60 d | |
| 9660 | onescreener.com | A | 95 | — | – | TLS1.2 | Amazon RSA 2048 M04 | 144 d | |
| 9661 | online.gov.vn | A | 95 | — | – | TLS1.2 | GlobalSign GCC R46 OV TLS CA 2025 | — | 129 d |
| 9662 | opb.org | A | 95 | — | – | TLS1.2 | Amazon RSA 2048 M04 | — | 109 d |
| 9663 | openarchives.org | A | 95 | — | – | TLS1.2 | Amazon RSA 2048 M04 | — | 143 d |
| 9664 | opendns.com | A | 95 | — | – | TLS1.2 | Let's Encrypt | 81 d | |
| 9665 | opengroup.org | A | 95 | — | – | TLS1.2 | GoDaddy TLS Intermediate CA DV - R1v1 | — | 149 d |
| 9666 | openwall.com | A | 95 | — | – | TLS1.2 | Let's Encrypt | — | 75 d |
| 9667 | opm.gov | A | 95 | — | – | TLS1.2 | GeoTrust TLS RSA CA G1 | 126 d | |
| 9668 | oracle.com | A | 95 | – | TLS1.2 | DigiCert Global G2 TLS RSA SHA256 2020 CA1 | 42 d | ||
| 9669 | oraclecloud.com | A | 95 | — | – | TLS1.2 | DigiCert Global G2 TLS RSA SHA256 2020 CA1 | — | 42 d |
| 9670 | oray.com | A | 95 | — | – | TLS1.2 | RapidSSL TLS RSA CA G1 | 144 d | |
| 9671 | orcd.co | A | 95 | — | – | TLS1.2 | Let's Encrypt | 83 d | |
| 9672 | oregon.gov | A | 95 | — | – | TLS1.2 | DigiCert Global G2 TLS RSA SHA256 2020 CA1 | 92 d | |
| 9673 | oregonlive.com | A | 95 | — | – | TLS1.2 | Amazon RSA 2048 M01 | — | 121 d |
| 9674 | oreilly.com | A | 95 | — | – | TLS1.2 | Let's Encrypt | 69 d | |
| 9675 | orf.at | A | 95 | — | – | TLS1.2 | GlobalSign Atlas R3 OV TLS CA 2026 Q2 | 56 d | |
| 9676 | osu.edu | A | 95 | — | – | TLS1.2 | Amazon RSA 2048 M04 | 68 d | |
| 9677 | oswego.edu | A | 95 | — | – | TLS1.2 | GlobalSign Atlas R3 DV TLS CA 2025 Q4 | — | 63 d |
| 9678 | otter.ai | A | 95 | — | – | TLS1.2 | Amazon RSA 2048 M01 | — | 53 d |
| 9679 | oup.com | A | 95 | – | TLS1.2 | Amazon RSA 2048 M01 | — | 93 d | |
| 9680 | outlookindia.com | A | 95 | — | – | TLS1.2 | Let's Encrypt | 33 d | |
| 9681 | overdrive.com | A | 95 | — | – | TLS1.2 | Google Trust Services | — | 36 d |
| 9682 | paintshoppro.com | A | 95 | — | – | TLS1.2 | Amazon RSA 2048 M01 | 52 d | |
| 9683 | paizo.com | A | 95 | — | – | TLS1.2 | Amazon RSA 2048 M04 | 161 d | |
| 9684 | palantir.com | A | 95 | — | – | TLS1.2 | GlobalSign Atlas R3 DV TLS CA 2025 Q4 | 63 d | |
| 9685 | panasonic.com | A | 95 | — | – | TLS1.2 | GeoTrust TLS RSA CA G1 | — | 179 d |
| 9686 | pandasecurity.com | A | 95 | — | – | TLS1.2 | DigiCert Global G2 TLS RSA SHA256 2020 CA1 | — | 130 d |
| 9687 | pandora.com | A | 95 | — | – | TLS1.2 | Thawte TLS RSA CA G1 | 145 d | |
| 9688 | paneralux.cn | A | 95 | — | – | TLS1.2 | Encryption Everywhere DV TLS CA - G2 | — | 28 d |
| 9689 | pantheon.org | A | 95 | — | – | TLS1.2 | Let's Encrypt | — | 43 d |
| 9690 | paradoxplaza.com | A | 95 | — | – | TLS1.2 | Amazon RSA 2048 M04 | — | 186 d |
| 9691 | paragon-software.com | A | 95 | — | – | TLS1.2 | DigiCert Global G2 TLS RSA SHA256 2020 CA1 | — | 125 d |
| 9692 | parliament.uk | A | 95 | — | – | TLS1.2 | Entrust OV TLS Issuing RSA CA 2 | — | 60 d |
| 9693 | parrot.com | A | 95 | — | – | TLS1.2 | Amazon RSA 2048 M04 | 171 d | |
| 9694 | partcommunity.com | A | 95 | — | – | TLS1.2 | Sectigo Public Server Authentication CA DV R36 | — | 159 d |
| 9695 | passkey.com | A | 95 | — | – | TLS1.2 | Amazon RSA 2048 M01 | — | 193 d |
| 9696 | patch.com | A | 95 | — | – | TLS1.2 | Let's Encrypt | — | 81 d |
| 9697 | payscale.com | A | 95 | — | – | TLS1.2 | Amazon RSA 2048 M04 | — | 84 d |
| 9698 | pbase.com | A | 95 | — | – | TLS1.2 | Amazon RSA 2048 M01 | — | 51 d |
| 9699 | pdc.edu | A | 95 | — | – | TLS1.2 | Entrust DV TLS Issuing RSA CA 2 | — | 35 d |
| 9700 | peacealu.com | A | 95 | — | – | TLS1.2 | RapidSSL TLS RSA CA G1 | — | 100 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.