SSL Grade Leaderboard: Top 100 Websites
Scanned from 20,000 top global websites · Updated 2026-11-03
| # | Domain | Grade | Score | 30d trend | Δ | TLS | Issuer | HSTS | Expires |
|---|---|---|---|---|---|---|---|---|---|
| 101 | ansible.com | A | 100 | — | — | TLS1.3 | Let's Encrypt | — | 0 d |
| 102 | aoa.org | A | 100 | — | — | TLS1.3 | Let's Encrypt | — | 32 d |
| 103 | apachefriends.org | A | 100 | — | — | TLS1.3 | Let's Encrypt | — | 19 d |
| 104 | apartmentguide.com | A | 100 | — | — | TLS1.3 | Amazon RSA 2048 M04 | — | 41 d |
| 105 | apartmentlist.com | A | 100 | — | — | TLS1.3 | Let's Encrypt | — | 5 d |
| 106 | apartments.com | A | 100 | — | — | TLS1.3 | DigiCert Global G3 TLS ECC SHA384 2020 CA1 | 72 d | |
| 107 | aph.gov.au | A | 100 | — | — | TLS1.3 | GeoTrust TLS RSA CA G1 | — | 118 d |
| 108 | api.org | A | 100 | — | — | TLS1.3 | Go Daddy Secure Certificate Authority - G2 | — | 152 d |
| 109 | applebees.com | A | 100 | — | — | TLS1.3 | DigiCert Global G2 TLS RSA SHA256 2020 CA1 | — | 112 d |
| 110 | appstore.com | A | 100 | — | — | TLS1.3 | Apple Public Server ECC CA 1 - G1 | — | 0 d |
| 111 | arabianbusiness.com | A | 100 | — | — | TLS1.3 | RapidSSL TLS RSA CA G1 | — | 0 d |
| 112 | aramco.com | A | 100 | — | — | TLS1.3 | DigiCert Global G3 TLS ECC SHA384 2020 CA1 | — | 128 d |
| 113 | arcg.is | A | 100 | — | — | TLS1.3 | Amazon RSA 2048 M04 | — | 11 d |
| 114 | architecturaldigest.com | A | 100 | — | — | TLS1.3 | Amazon RSA 2048 M01 | — | 19 d |
| 115 | architecture.com | A | 100 | — | — | TLS1.3 | GeoTrust TLS RSA CA G1 | — | 39 d |
| 116 | archiwp.com | A | 100 | — | — | TLS1.3 | Let's Encrypt | — | 0 d |
| 117 | argusmedia.com | A | 100 | — | — | TLS1.3 | Amazon RSA 2048 M04 | — | 112 d |
| 118 | arista.com | A | 100 | — | — | TLS1.3 | DigiCert Global G2 TLS RSA SHA256 2020 CA1 | — | 0 d |
| 119 | arizona.edu | A | 100 | — | — | TLS1.3 | Let's Encrypt | 0 d | |
| 120 | arm.com | A | 100 | — | — | TLS1.3 | GlobalSign GCC R3 EV TLS CA 2025 | 80 d | |
| 121 | art19.com | A | 100 | — | — | TLS1.3 | GlobalSign Atlas R3 DV TLS CA 2026 Q2 | 57 d | |
| 122 | artbasel.com | A | 100 | — | — | TLS1.3 | DigiCert G2 TLS EU RSA4096 SHA384 2022 CA1 | — | 65 d |
| 123 | artic.edu | A | 100 | — | — | TLS1.3 | Let's Encrypt | — | 28 d |
| 124 | articulate.com | A | 100 | — | — | TLS1.3 | Amazon RSA 2048 M04 | — | 37 d |
| 125 | artsmia.org | A | 100 | — | — | TLS1.3 | Let's Encrypt | — | 32 d |
| 126 | arup.com | A | 100 | — | — | TLS1.3 | GlobalSign RSA OV SSL CA 2018 | 79 d | |
| 127 | as.com | A | 100 | — | — | TLS1.3 | Let's Encrypt | — | 0 d |
| 128 | as.me | A | 100 | — | — | TLS1.3 | Amazon RSA 2048 M01 | — | 137 d |
| 129 | ashrae.org | A | 100 | — | — | TLS1.3 | Starfield TLS Intermediate CA DV - R1v1 | — | 1 d |
| 130 | ask.com | A | 100 | — | — | TLS1.3 | Let's Encrypt | — | 25 d |
| 131 | asla.org | A | 100 | — | — | TLS1.3 | GeoTrust TLS RSA CA G1 | 45 d | |
| 132 | asos.com | A | 100 | — | — | TLS1.3 | DigiCert Global G3 TLS ECC SHA384 2020 CA1 | 0 d | |
| 133 | asp.net | A | 100 | — | — | TLS1.3 | Microsoft TLS G2 RSA CA OCSP 10 | — | 40 d |
| 134 | aspca.org | A | 100 | — | — | TLS1.3 | Let's Encrypt | 24 d | |
| 135 | asrock.com | A | 100 | — | — | TLS1.3 | DigiCert Global G2 TLS RSA SHA256 2020 CA1 | — | 121 d |
| 136 | astm.org | A | 100 | — | — | TLS1.3 | DigiCert Global G2 TLS RSA SHA256 2020 CA1 | — | 136 d |
| 137 | athome.co.jp | A | 100 | — | — | TLS1.3 | Cybertrust Japan SureServer CA G4 | — | 27 d |
| 138 | ati.com | A | 100 | — | — | TLS1.3 | DigiCert Global G3 TLS ECC SHA384 2020 CA1 | — | 30 d |
| 139 | atlanticcouncil.org | A | 100 | — | — | TLS1.3 | Let's Encrypt | 0 d | |
| 140 | atlassian.net | A | 100 | — | — | TLS1.3 | Amazon RSA 2048 M04 | — | 96 d |
| 141 | atom.io | A | 100 | — | — | TLS1.3 | Sectigo Public Server Authentication CA DV R36 | — | 0 d |
| 142 | auctria.com | A | 100 | — | — | TLS1.3 | Amazon RSA 2048 M04 | — | 24 d |
| 143 | audubon.org | A | 100 | — | — | TLS1.3 | Let's Encrypt | 11 d | |
| 144 | australia.gov.au | A | 100 | — | — | TLS1.3 | GlobalSign Atlas R46 DV TLS CA 2026 Q3 | — | 0 d |
| 145 | autoguide.com | A | 100 | — | — | TLS1.3 | Let's Encrypt | — | 0 d |
| 146 | autosport.com | A | 100 | — | — | TLS1.3 | Amazon RSA 2048 M01 | — | 40 d |
| 147 | av-test.org | A | 100 | — | — | TLS1.3 | Let's Encrypt | — | 35 d |
| 148 | avantlink.com | A | 100 | — | — | TLS1.3 | Amazon RSA 2048 M04 | — | 53 d |
| 149 | avianca.com | A | 100 | — | — | TLS1.3 | DigiCert Global G3 TLS ECC SHA384 2020 CA1 | — | 83 d |
| 150 | avira.com | A | 100 | — | — | TLS1.3 | Let's Encrypt | — | 19 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 weighted 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.