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 |
|---|---|---|---|---|---|---|---|---|---|
| 9751 | psg.fr | A | 95 | — | – | TLS1.2 | Let's Encrypt | 80 d | |
| 9752 | psu.edu | A | 95 | — | – | TLS1.2 | Amazon RSA 2048 M01 | 76 d | |
| 9753 | ptc-asia.com | A | 95 | — | – | TLS1.2 | Encryption Everywhere DV TLS CA - G2 | — | 85 d |
| 9754 | publishersweekly.com | A | 95 | — | – | TLS1.2 | Amazon RSA 2048 M04 | — | 75 d |
| 9755 | puc-rio.br | A | 95 | — | – | TLS1.2 | RapidSSL TLS RSA CA G1 | — | 56 d |
| 9756 | purina.com | A | 95 | — | – | TLS1.2 | ZeroSSL RSA DV SSL CA 2 | 57 d | |
| 9757 | putty.org | A | 95 | — | – | TLS1.2 | Let's Encrypt | 78 d | |
| 9758 | px.a8.net | A | 95 | — | – | TLS1.2 | GlobalSign GCC R3 DV TLS CA 2020 | 47 d | |
| 9759 | pzxbwg.com | A | 95 | — | – | TLS1.2 | RapidSSL TLS RSA CA G1 | — | 68 d |
| 9760 | qcc.com | A | 95 | — | – | TLS1.2 | GeoTrust G2 TLS CN RSA4096 SHA256 2022 CA1 | 110 d | |
| 9761 | qcloud.com | A | 95 | — | – | TLS1.2 | GlobalSign Atlas R3 OV TLS CA 2026 Q1 | — | 140 d |
| 9762 | qiniu.com | A | 95 | — | — | TLS1.2 | TrustAsia DV TLS RSA CA 2025 | 111 d | |
| 9763 | qixintian.com | A | 95 | — | – | TLS1.2 | Xcc Trust OV SSL CA | — | 127 d |
| 9764 | qnap.com | A | 95 | — | – | TLS1.2 | Amazon RSA 2048 M01 | — | 52 d |
| 9765 | qobuz.com | A | 95 | — | – | TLS1.2 | GandiCert | — | 70 d |
| 9766 | qt.io | A | 95 | — | – | TLS1.2 | Let's Encrypt | 54 d | |
| 9767 | qu.edu | A | 95 | — | – | TLS1.2 | InCommon RSA Server CA 2 | 32 d | |
| 9768 | qualcomm.com | A | 95 | — | – | TLS1.2 | Sectigo Public Server Authentication CA OV R36 | 189 d | |
| 9769 | quark.cn | A | 95 | — | – | TLS1.2 | GlobalSign GCC R46 OV TLS CA 2025 | 138 d | |
| 9770 | queensu.ca | A | 95 | — | – | TLS1.2 | Sectigo Public Server Authentication CA OV R36 | 123 d | |
| 9771 | quest.com | A | 95 | — | – | TLS1.2 | ZeroSSL RSA DV SSL CA 2 | — | 60 d |
| 9772 | questdiagnostics.com | A | 95 | — | – | TLS1.2 | DigiCert Global G2 TLS RSA SHA256 2020 CA1 | 62 d | |
| 9773 | qut.edu.au | A | 95 | — | – | TLS1.2 | DigiCert Global G2 TLS RSA SHA256 2020 CA1 | 40 d | |
| 9774 | r7.com | A | 95 | — | – | TLS1.2 | Amazon RSA 2048 M04 | — | 80 d |
| 9775 | rackspace.com | A | 95 | — | – | TLS1.2 | Amazon RSA 2048 M04 | 152 d | |
| 9776 | radio.fm | A | 95 | — | – | TLS1.2 | Let's Encrypt | — | 74 d |
| 9777 | radionz.co.nz | A | 95 | — | – | TLS1.2 | Let's Encrypt | — | 68 d |
| 9778 | raileurope.com | A | 95 | — | – | TLS1.2 | Amazon RSA 2048 M01 | 184 d | |
| 9779 | rakuten.com | A | 95 | — | – | TLS1.2 | DigiCert Global G2 TLS RSA SHA256 2020 CA1 | 126 d | |
| 9780 | rationalwiki.org | A | 95 | — | – | TLS1.2 | Let's Encrypt | — | 49 d |
| 9781 | razer.com | A | 95 | — | – | TLS1.2 | SSL.com TLS Issuing RSA CA R1 | 193 d | |
| 9782 | rbb-online.de | A | 95 | — | – | TLS1.2 | Let's Encrypt | — | 65 d |
| 9783 | rbb24.de | A | 95 | — | – | TLS1.2 | Let's Encrypt | — | 65 d |
| 9784 | rcf.fr | A | 95 | — | – | TLS1.2 | Let's Encrypt | — | 79 d |
| 9785 | realclearpolitics.com | A | 95 | — | – | TLS1.2 | Go Daddy Secure Certificate Authority - G2 | — | 112 d |
| 9786 | realclimate.org | A | 95 | — | – | TLS1.2 | Let's Encrypt | — | 40 d |
| 9787 | realgm.com | A | 95 | — | – | TLS1.2 | GeoTrust TLS RSA CA G1 | — | 90 d |
| 9788 | realme.com | A | 95 | — | – | TLS1.2 | RapidSSL TLS RSA CA G1 | — | 35 d |
| 9789 | realtor.com | A | 95 | — | – | TLS1.2 | Amazon RSA 2048 M01 | 151 d | |
| 9790 | realtor.org | A | 95 | — | – | TLS1.2 | Let's Encrypt | — | 86 d |
| 9791 | reason.com | A | 95 | — | – | TLS1.2 | Amazon RSA 2048 M01 | — | 53 d |
| 9792 | reference-global.com | A | 95 | — | – | TLS1.2 | Amazon RSA 2048 M04 | — | 86 d |
| 9793 | reginfo.gov | A | 95 | — | – | TLS1.2 | DigiCert Global G2 TLS RSA SHA256 2020 CA1 | 68 d | |
| 9794 | regulation.gov.ru | A | 95 | — | – | TLS1.2 | GlobalSign GCC R3 DV TLS CA 2020 | 81 d | |
| 9795 | renault.com | A | 95 | — | – | TLS1.2 | Sectigo Public Server Authentication CA DV R36 | — | 109 d |
| 9796 | renaultgroup.com | A | 95 | — | – | TLS1.2 | Sectigo Public Server Authentication CA DV R36 | 109 d | |
| 9797 | renderosity.com | A | 95 | — | – | TLS1.2 | Let's Encrypt | — | 54 d |
| 9798 | rense.com | A | 95 | — | – | TLS1.2 | Let's Encrypt | — | 78 d |
| 9799 | reserveamerica.com | A | 95 | — | – | TLS1.2 | Amazon RSA 2048 M04 | — | 86 d |
| 9800 | resmigazete.gov.tr | A | 95 | — | – | TLS1.2 | GeoTrust TLS RSA CA G1 | 125 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.