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 |
|---|---|---|---|---|---|---|---|---|---|
| 2701 | risd.edu | A | 100 | — | – | TLS1.3 | Let's Encrypt | 63 d | |
| 2702 | ritzcarlton.com | A | 100 | — | – | TLS1.3 | Sectigo Public Server Authentication CA OV R40 | 92 d | |
| 2703 | riverside.com | A | 100 | — | – | TLS1.3 | Amazon RSA 2048 M01 | — | 122 d |
| 2704 | rki.de | A | 100 | — | – | TLS1.3 | D-TRUST BR CA 2-23-1 2023 | — | 134 d |
| 2705 | rmf24.pl | A | 100 | — | – | TLS1.3 | Sectigo Public Server Authentication CA DV E36 | — | 64 d |
| 2706 | rmi.org | A | 100 | — | – | TLS1.3 | Let's Encrypt | 56 d | |
| 2707 | road.cc | A | 100 | — | – | TLS1.3 | Let's Encrypt | — | 55 d |
| 2708 | robbast.nl | A | 100 | — | – | TLS1.3 | Let's Encrypt | — | 80 d |
| 2709 | robertsspaceindustries.com | A | 100 | — | – | TLS1.3 | Google Trust Services | — | 86 d |
| 2710 | robotstxt.org | A | 100 | — | – | TLS1.3 | Let's Encrypt | — | 60 d |
| 2711 | rogers.com | A | 100 | — | – | TLS1.3 | DigiCert Global G2 TLS RSA SHA256 2020 CA1 | — | 141 d |
| 2712 | rogueamoeba.com | A | 100 | — | – | TLS1.3 | Let's Encrypt | — | 69 d |
| 2713 | rolls-roycemotorcars.com | A | 100 | — | – | TLS1.3 | GlobalSign RSA OV SSL CA 2018 | — | 162 d |
| 2714 | romania-insider.com | A | 100 | — | – | TLS1.3 | Let's Encrypt | — | 29 d |
| 2715 | ros.org | A | 100 | — | – | TLS1.3 | Let's Encrypt | — | 35 d |
| 2716 | rosbalt.ru | A | 100 | — | – | TLS1.3 | Let's Encrypt | — | 85 d |
| 2717 | roscosmos.ru | A | 100 | — | – | TLS1.3 | GlobalSign GCC R3 DV TLS CA 2020 | — | 102 d |
| 2718 | rosettastone.com | A | 100 | — | – | TLS1.3 | Google Trust Services | — | 88 d |
| 2719 | rotary.org | A | 100 | — | – | TLS1.3 | Let's Encrypt | — | 33 d |
| 2720 | rover.com | A | 100 | — | – | TLS1.3 | Amazon RSA 2048 M01 | 148 d | |
| 2721 | royalalberthall.com | A | 100 | — | – | TLS1.3 | GlobalSign Atlas R46 DV TLS CA 2026 Q4 | — | 80 d |
| 2722 | royalcaribbean.com | A | 100 | — | – | TLS1.3 | GeoTrust TLS RSA CA G1 | — | 106 d |
| 2723 | royalholloway.ac.uk | A | 100 | — | – | TLS1.3 | Sectigo Public Server Authentication CA OV R36 | 29 d | |
| 2724 | rozhlas.cz | A | 100 | — | – | TLS1.3 | Thawte TLS RSA CA G1 | — | 38 d |
| 2725 | rpi.edu | A | 100 | — | – | TLS1.3 | Let's Encrypt | 44 d | |
| 2726 | rsc.org | A | 100 | — | – | TLS1.3 | Google Trust Services | — | 48 d |
| 2727 | rsl.ru | A | 100 | — | – | TLS1.3 | GlobalSign GCC R46 DV TLS CA 2025 | — | 102 d |
| 2728 | rsna.org | A | 100 | — | – | TLS1.3 | Amazon RSA 2048 M04 | — | 97 d |
| 2729 | rss.com | A | 100 | — | – | TLS1.3 | Amazon RSA 2048 M01 | — | 177 d |
| 2730 | rstheme.com | A | 100 | — | – | TLS1.3 | Let's Encrypt | — | 82 d |
| 2731 | rstyle.me | A | 100 | — | – | TLS1.3 | Amazon RSA 2048 M04 | — | 117 d |
| 2732 | rt.com | A | 100 | — | – | TLS1.3 | ZeroSSL RSA DV SSL CA 2 | — | 66 d |
| 2733 | rti.org | A | 100 | — | – | TLS1.3 | GlobalSign RSA OV SSL CA 2018 | — | 145 d |
| 2734 | rtings.com | A | 100 | — | – | TLS1.3 | Amazon RSA 2048 M01 | — | 71 d |
| 2735 | rtl.be | A | 100 | — | – | TLS1.3 | GlobalSign GCC R3 DV TLS CA 2020 | — | 116 d |
| 2736 | rtl.nl | A | 100 | — | – | TLS1.3 | Sectigo Public Server Authentication CA DV R36 | — | 112 d |
| 2737 | rtve.es | A | 100 | — | – | TLS1.3 | GlobalSign GCC R46 AlphaSSL CA 2025 | — | 164 d |
| 2738 | rtvi.com | A | 100 | — | – | TLS1.3 | Let's Encrypt | — | 81 d |
| 2739 | rtvslo.si | A | 100 | — | – | TLS1.3 | Thawte TLS RSA CA G1 | — | 126 d |
| 2740 | rub.de | A | 100 | — | – | TLS1.3 | GEANT TLS RSA 1 | — | 106 d |
| 2741 | rubiconproject.com | A | 100 | — | – | TLS1.3 | Amazon RSA 2048 M04 | — | 181 d |
| 2742 | ruby-lang.org | A | 100 | — | – | TLS1.3 | Let's Encrypt | — | 77 d |
| 2743 | rubyonrails.org | A | 100 | — | – | TLS1.3 | Let's Encrypt | — | 59 d |
| 2744 | rudaw.net | A | 100 | — | – | TLS1.3 | Let's Encrypt | 58 d | |
| 2745 | rufus.ie | A | 100 | — | – | TLS1.3 | Let's Encrypt | — | 73 d |
| 2746 | rugbyworldcup.com | A | 100 | — | – | TLS1.3 | Amazon RSA 2048 M04 | 132 d | |
| 2747 | run.app | A | 100 | — | – | TLS1.3 | Google Trust Services | — | 55 d |
| 2748 | rundschau-online.de | A | 100 | — | – | TLS1.3 | RapidSSL TLS RSA CA G1 | — | 126 d |
| 2749 | rungolf.com | A | 100 | — | – | TLS1.3 | RapidSSL TLS RSA CA G1 | — | 182 d |
| 2750 | runkeeper.com | A | 100 | — | – | TLS1.3 | Amazon RSA 2048 M04 | — | 118 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.