SSL Grade Leaderboard: Top 100 Websites
Scanned from 20,000 top global websites · Updated 2026-11-06
| # | Domain | Grade | Score | 30d trend | Δ | TLS | Issuer | HSTS | Expires |
|---|---|---|---|---|---|---|---|---|---|
| 2601 | prx.org | A | 100 | — | – | TLS1.3 | Amazon RSA 2048 M01 | 183 d | |
| 2602 | pse.is | A | 100 | — | – | TLS1.3 | Google Trust Services | — | 51 d |
| 2603 | psfk.com | A | 100 | — | – | TLS1.3 | Google Trust Services | — | 45 d |
| 2604 | psychologytoday.com | A | 100 | — | – | TLS1.3 | Amazon RSA 2048 M01 | — | 157 d |
| 2605 | psycom.net | A | 100 | — | – | TLS1.3 | Amazon RSA 2048 M01 | — | 153 d |
| 2606 | ptc.com | A | 100 | — | – | TLS1.3 | HydrantID Server CA O1 | — | 175 d |
| 2607 | ptinews.com | A | 100 | — | – | TLS1.3 | Let's Encrypt | — | 87 d |
| 2608 | ptsecurity.com | A | 100 | — | – | TLS1.3 | Russian Trusted Sub CA | — | 272 d |
| 2609 | pubg.com | A | 100 | — | – | TLS1.3 | Amazon RSA 2048 M01 | — | 82 d |
| 2610 | public.lu | A | 100 | — | – | TLS1.3 | Let's Encrypt | — | 80 d |
| 2611 | publico.pt | A | 100 | — | – | TLS1.3 | Amazon RSA 2048 M04 | — | 123 d |
| 2612 | publicradio.org | A | 100 | — | – | TLS1.3 | Sectigo Public Server Authentication CA DV R36 | — | 98 d |
| 2613 | publons.com | A | 100 | — | – | TLS1.3 | Amazon RSA 2048 M04 | — | 194 d |
| 2614 | pudding.cool | A | 100 | — | – | TLS1.3 | Amazon RSA 2048 M01 | — | 40 d |
| 2615 | purdue.edu | A | 100 | — | – | TLS1.3 | InCommon Intermediate CA - OVG2C | — | 196 d |
| 2616 | purestorage.com | A | 100 | — | – | TLS1.3 | DigiCert Global G2 TLS RSA SHA256 2020 CA1 | — | 134 d |
| 2617 | pxf.io | A | 100 | — | – | TLS1.3 | Google Trust Services | — | 85 d |
| 2618 | pypa.io | A | 100 | — | – | TLS1.3 | Let's Encrypt | — | 74 d |
| 2619 | python.ca | A | 100 | — | – | TLS1.3 | Let's Encrypt | — | 89 d |
| 2620 | pytorch.org | A | 100 | — | – | TLS1.3 | Let's Encrypt | 82 d | |
| 2621 | qatarairways.com | A | 100 | — | – | TLS1.3 | GeoTrust TLS RSA CA G1 | — | 29 d |
| 2622 | qianlong.com | A | 100 | — | – | TLS1.3 | GlobalSign GCC R46 OV TLS CA 2025 | — | 176 d |
| 2623 | qianwen.com | A | 100 | — | – | TLS1.3 | GlobalSign GCC R3 OV TLS CA 2024 | — | 68 d |
| 2624 | qiita.com | A | 100 | — | – | TLS1.3 | Amazon RSA 2048 M01 | 103 d | |
| 2625 | qld.gov.au | A | 100 | — | – | TLS1.3 | Amazon RSA 2048 M01 | — | 101 d |
| 2626 | qrco.de | A | 100 | — | – | TLS1.3 | Amazon RSA 2048 M04 | — | 59 d |
| 2627 | qrz.com | A | 100 | — | – | TLS1.3 | Let's Encrypt | 72 d | |
| 2628 | quantcast.com | A | 100 | — | – | TLS1.3 | Let's Encrypt | — | 49 d |
| 2629 | qub.ac.uk | A | 100 | — | – | TLS1.3 | Amazon RSA 2048 M04 | — | 49 d |
| 2630 | queenplaycasino.net | A | 100 | — | — | TLS1.3 | Encryption Everywhere DV TLS CA - G2 | — | 28 d |
| 2631 | queue-it.net | A | 100 | — | – | TLS1.3 | Amazon RSA 2048 M01 | — | 161 d |
| 2632 | quirksmode.org | A | 100 | — | – | TLS1.3 | Let's Encrypt | — | 52 d |
| 2633 | quizizz.com | A | 100 | — | – | TLS1.3 | Amazon RSA 2048 M01 | — | 110 d |
| 2634 | qunar.com | A | 100 | — | – | TLS1.3 | GlobalSign RSA OV SSL CA 2018 | — | 149 d |
| 2635 | qunitjs.com | A | 100 | — | – | TLS1.3 | Let's Encrypt | — | 43 d |
| 2636 | quora.com | A | 100 | — | – | TLS1.3 | Google Trust Services | — | 74 d |
| 2637 | quotationspage.com | A | 100 | — | – | TLS1.3 | Let's Encrypt | — | 43 d |
| 2638 | quoteinvestigator.com | A | 100 | — | – | TLS1.3 | GoDaddy TLS Intermediate CA DV - R1v1 | — | 44 d |
| 2639 | qwen.ai | A | 100 | — | – | TLS1.3 | GlobalSign RSA OV SSL CA 2018 | — | 145 d |
| 2640 | racked.com | A | 100 | — | — | TLS1.3 | Let's Encrypt | — | 23 d |
| 2641 | radio-canada.ca | A | 100 | — | – | TLS1.3 | Let's Encrypt | — | 85 d |
| 2642 | radio.com | A | 100 | — | – | TLS1.3 | Amazon RSA 2048 M04 | — | 125 d |
| 2643 | radio.cz | A | 100 | — | – | TLS1.3 | ZeroSSL RSA DV SSL CA 2 | — | 36 d |
| 2644 | radiohead.com | A | 100 | — | – | TLS1.3 | Amazon RSA 2048 M01 | — | 152 d |
| 2645 | radiolab.org | A | 100 | — | – | TLS1.3 | Amazon RSA 2048 M01 | — | 109 d |
| 2646 | radissonblu.com | A | 100 | — | – | TLS1.3 | DigiCert Global G2 TLS RSA SHA256 2020 CA1 | — | 156 d |
| 2647 | radissonhotels.com | A | 100 | — | – | TLS1.3 | DigiCert Global G2 TLS RSA SHA256 2020 CA1 | 156 d | |
| 2648 | raffles.com | A | 100 | — | – | TLS1.3 | GlobalSign RSA OV SSL CA 2018 | — | 44 d |
| 2649 | rakkoma.com | A | 100 | — | – | TLS1.3 | Amazon RSA 2048 M04 | — | 180 d |
| 2650 | rakuten.co.jp | A | 100 | — | – | TLS1.3 | DigiCert Global G2 TLS RSA SHA256 2020 CA1 | — | 150 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.