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 |
|---|---|---|---|---|---|---|---|---|---|
| 3701 | yardbarker.com | A | 100 | — | – | TLS1.3 | GeoTrust EV RSA CA G2 | — | 101 d |
| 3702 | yellowpages.ca | A | 100 | — | – | TLS1.3 | Amazon RSA 2048 M04 | — | 88 d |
| 3703 | yelp.com | A | 100 | — | – | TLS1.3 | DigiCert Global G2 TLS RSA SHA256 2020 CA1 | — | 29 d |
| 3704 | yiqigou.cc | A | 100 | — | – | TLS1.3 | Xcc Trust DV SSL CA | — | 91 d |
| 3705 | yjsry.com | A | 100 | — | – | TLS1.3 | Encryption Everywhere DV TLS CA - G2 | — | 80 d |
| 3706 | ynet.co.il | A | 100 | — | – | TLS1.3 | DigiCert Global G3 TLS ECC SHA384 2020 CA1 | — | 133 d |
| 3707 | yogicentral.science | A | 100 | — | – | TLS1.3 | Let's Encrypt | — | 78 d |
| 3708 | yonsei.ac.kr | A | 100 | — | – | TLS1.3 | Thawte TLS RSA CA G1 | — | 168 d |
| 3709 | yorku.ca | A | 100 | — | – | TLS1.3 | GlobalSign GCC R46 OV TLS CA 2025 | — | 133 d |
| 3710 | yoshki.com | A | 100 | — | – | TLS1.3 | Thawte TLS RSA CA G1 | — | 81 d |
| 3711 | youcaring.com | A | 100 | — | – | TLS1.3 | Let's Encrypt | — | 57 d |
| 3712 | youdao.com | A | 100 | — | – | TLS1.3 | GeoTrust G2 TLS CN RSA4096 SHA256 2022 CA1 | — | 183 d |
| 3713 | yougov.co.uk | A | 100 | — | – | TLS1.3 | GlobalSign Atlas R46 DV TLS CA 2026 Q4 | — | 74 d |
| 3714 | your-server.de | A | 100 | — | – | TLS1.3 | Thawte TLS RSA CA G1 | — | 166 d |
| 3715 | youradchoices.com | A | 100 | — | – | TLS1.3 | Let's Encrypt | — | 35 d |
| 3716 | yourdictionary.com | A | 100 | — | – | TLS1.3 | Amazon RSA 2048 S19 | — | 193 d |
| 3717 | yousendit.com | A | 100 | — | – | TLS1.3 | Amazon RSA 2048 M01 | — | 108 d |
| 3718 | youth.cn | A | 100 | — | – | TLS1.3 | DigiCert Global G2 TLS RSA SHA256 2020 CA1 | — | 139 d |
| 3719 | youtu.be | A | 100 | TLS1.3 | Google Trust Services | — | 54 d | ||
| 3720 | yr.no | A | 100 | — | – | TLS1.3 | DigiCert Global G3 TLS ECC SHA384 2020 CA1 | 68 d | |
| 3721 | ytmnd.com | A | 100 | — | – | TLS1.3 | Google Trust Services | — | 54 d |
| 3722 | ytn.co.kr | A | 100 | — | – | TLS1.3 | Amazon RSA 2048 M01 | — | 163 d |
| 3723 | ytv.co.jp | A | 100 | — | – | TLS1.3 | Amazon RSA 2048 M04 | — | 111 d |
| 3724 | yu.edu | A | 100 | — | – | TLS1.3 | Let's Encrypt | 77 d | |
| 3725 | yummywins.io | A | 100 | — | — | TLS1.3 | Encryption Everywhere DV TLS CA - G2 | — | 27 d |
| 3726 | yunzhan365.com | A | 100 | — | – | TLS1.3 | RapidSSL TLS RSA CA G1 | — | 96 d |
| 3727 | yupoo.com | A | 100 | — | – | TLS1.3 | TrustAsia DV TLS RSA CA 2024 | — | 152 d |
| 3728 | zakon.kz | A | 100 | — | – | TLS1.3 | Sectigo Public Server Authentication CA DV R36 | — | 47 d |
| 3729 | zalando.com | A | 100 | — | – | TLS1.3 | Amazon RSA 2048 M04 | — | 153 d |
| 3730 | zalando.de | A | 100 | — | – | TLS1.3 | Amazon RSA 2048 M04 | — | 153 d |
| 3731 | zalo.me | A | 100 | — | – | TLS1.3 | DigiCert Global G3 TLS ECC SHA384 2020 CA1 | 79 d | |
| 3732 | zanox.com | A | 100 | — | – | TLS1.3 | Let's Encrypt | — | 55 d |
| 3733 | zaobao.com | A | 100 | — | – | TLS1.3 | Amazon ECDSA 256 M04 | — | 132 d |
| 3734 | zap2it.com | A | 100 | — | – | TLS1.3 | Let's Encrypt | — | 39 d |
| 3735 | zapf.in | A | 100 | — | – | TLS1.3 | Let's Encrypt | — | 87 d |
| 3736 | zeit.de | A | 100 | — | – | TLS1.3 | Let's Encrypt | — | 56 d |
| 3737 | zerohedge.com | A | 100 | — | – | TLS1.3 | Google Trust Services | — | 52 d |
| 3738 | zet-casino.io | A | 100 | — | — | TLS1.3 | Encryption Everywhere DV TLS CA - G2 | — | 27 d |
| 3739 | zety.com | A | 100 | — | – | TLS1.3 | DigiCert Global G3 TLS ECC SHA384 2020 CA1 | — | 129 d |
| 3740 | zgyxlc.com | A | 100 | — | – | TLS1.3 | Encryption Everywhere DV TLS CA - G2 | — | 64 d |
| 3741 | zh.ch | A | 100 | — | – | TLS1.3 | DigiCert Global G2 TLS RSA SHA256 2020 CA1 | — | 42 d |
| 3742 | zha.com | A | 100 | — | – | TLS1.3 | GeoTrust TLS RSA CA G1 | — | 149 d |
| 3743 | zhenqing1314.com | A | 100 | — | – | TLS1.3 | Let's Encrypt | — | 74 d |
| 3744 | zhipin.com | A | 100 | — | – | TLS1.3 | GlobalSign GCC R46 OV TLS CA 2025 | — | 133 d |
| 3745 | zhukao.com.cn | A | 100 | — | – | TLS1.3 | Let's Encrypt | — | 62 d |
| 3746 | zimbra.com | A | 100 | — | – | TLS1.3 | Let's Encrypt | 45 d | |
| 3747 | zkm.de | A | 100 | — | – | TLS1.3 | GEANT TLS RSA 1 | — | 54 d |
| 3748 | zohopublic.eu | A | 100 | — | – | TLS1.3 | Let's Encrypt | — | 61 d |
| 3749 | zohosites.com | A | 100 | — | – | TLS1.3 | Let's Encrypt | — | 72 d |
| 3750 | zola.com | A | 100 | — | – | TLS1.3 | Amazon RSA 2048 M04 | — | 68 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.