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 |
|---|---|---|---|---|---|---|---|---|---|
| 9901 | so-net.ne.jp | A | 95 | — | – | TLS1.2 | Cybertrust Japan SureServer CA G4 | 115 d | |
| 9902 | so.com | A | 95 | — | – | TLS1.2 | WoTrus RSA DV SSL CA 2 | — | 130 d |
| 9903 | socialsecurity.gov | A | 95 | — | – | TLS1.2 | DigiCert EV RSA CA G2 | — | 162 d |
| 9904 | softether-download.com | A | 95 | — | – | TLS1.2 | Let's Encrypt | — | 79 d |
| 9905 | song.link | A | 95 | — | – | TLS1.2 | Let's Encrypt | — | 45 d |
| 9906 | songkick.com | A | 95 | — | – | TLS1.2 | Let's Encrypt | — | 40 d |
| 9907 | sony.co.uk | A | 95 | — | – | TLS1.2 | Sectigo Public Server Authentication CA OV R36 | — | 188 d |
| 9908 | southwest.com | A | 95 | — | – | TLS1.2 | HydrantID Server CA O1 | 68 d | |
| 9909 | spaceweather.com | A | 95 | — | – | TLS1.2 | Let's Encrypt | — | 67 d |
| 9910 | spamcop.net | A | 95 | — | – | TLS1.2 | GeoTrust TLS RSA CA G1 | 66 d | |
| 9911 | sparknotes.com | A | 95 | — | – | TLS1.2 | DigiCert Global G2 TLS RSA SHA256 2020 CA1 | — | 120 d |
| 9912 | specialolympics.org | A | 95 | — | – | TLS1.2 | Amazon RSA 2048 M04 | 132 d | |
| 9913 | spectrumlocalnews.com | A | 95 | — | – | TLS1.2 | Amazon RSA 2048 M04 | 97 d | |
| 9914 | spectrumnews1.com | A | 95 | — | – | TLS1.2 | Amazon RSA 2048 M04 | 97 d | |
| 9915 | splunk.com | A | 95 | — | – | TLS1.2 | DigiCert Global G2 TLS RSA SHA256 2020 CA1 | 150 d | |
| 9916 | spokeo.com | A | 95 | — | – | TLS1.2 | Amazon RSA 2048 M04 | 157 d | |
| 9917 | sponichi.co.jp | A | 95 | — | – | TLS1.2 | JPRS DV RSA CA 2024 G1 | — | 112 d |
| 9918 | sportsbusinessjournal.com | A | 95 | — | – | TLS1.2 | Amazon RSA 2048 M04 | — | 171 d |
| 9919 | sportskeeda.com | A | 95 | — | – | TLS1.2 | Amazon RSA 2048 M01 | — | 150 d |
| 9920 | sprinklr.com | A | 95 | — | – | TLS1.2 | Amazon RSA 2048 M04 | — | 94 d |
| 9921 | sri.com | A | 95 | — | – | TLS1.2 | Let's Encrypt | 36 d | |
| 9922 | ssa.gov | A | 95 | — | – | TLS1.2 | DigiCert Global G2 TLS RSA SHA256 2020 CA1 | — | 57 d |
| 9923 | ssl.com | A | 95 | — | – | TLS1.2 | SSL.com TLS Issuing RSA CA R1 | 140 d | |
| 9924 | sspai.com | A | 95 | — | – | TLS1.2 | RapidSSL TLS RSA CA G1 | — | 104 d |
| 9925 | standardandpoors.com | A | 95 | — | – | TLS1.2 | DigiCert Global G2 TLS RSA SHA256 2020 CA1 | — | 125 d |
| 9926 | stanfordhealthcare.org | A | 95 | — | – | TLS1.2 | Amazon RSA 2048 M01 | — | 76 d |
| 9927 | stantec.com | A | 95 | — | – | TLS1.2 | RapidSSL TLS RSA CA G1 | — | 182 d |
| 9928 | startupxplore.com | A | 95 | — | – | TLS1.2 | ZeroSSL RSA DV SSL CA 2 | — | 60 d |
| 9929 | starwoodhotels.com | A | 95 | — | — | TLS1.2 | Let's Encrypt | 0 d | |
| 9930 | stat.fi | A | 95 | — | – | TLS1.2 | DigiCert Global G2 TLS RSA SHA256 2020 CA1 | 149 d | |
| 9931 | statesman.com | A | 95 | — | – | TLS1.2 | Let's Encrypt | — | 56 d |
| 9932 | stephenking.com | A | 95 | — | – | TLS1.2 | Let's Encrypt | 83 d | |
| 9933 | storm.mg | A | 95 | — | – | TLS1.2 | Let's Encrypt | — | 48 d |
| 9934 | streamable.com | A | 95 | — | – | TLS1.2 | GlobalSign Atlas R3 DV TLS CA 2025 Q4 | 63 d | |
| 9935 | stumbleupon.com | A | 95 | — | – | TLS1.2 | Amazon RSA 2048 M01 | — | 157 d |
| 9936 | stuttgarter-nachrichten.de | A | 95 | — | – | TLS1.2 | Let's Encrypt | 70 d | |
| 9937 | stuttgarter-zeitung.de | A | 95 | — | – | TLS1.2 | Let's Encrypt | 37 d | |
| 9938 | stylemepretty.com | A | 95 | — | – | TLS1.2 | Amazon RSA 2048 M04 | 159 d | |
| 9939 | subaru.com | A | 95 | — | – | TLS1.2 | DigiCert Global G2 TLS RSA SHA256 2020 CA1 | 152 d | |
| 9940 | sublimetext.com | A | 95 | — | – | TLS1.2 | Let's Encrypt | — | 77 d |
| 9941 | sudinfo.be | A | 95 | — | – | TLS1.2 | Let's Encrypt | — | 73 d |
| 9942 | sueddeutsche.de | A | 95 | — | – | TLS1.2 | Let's Encrypt | 35 d | |
| 9943 | sun.com | A | 95 | — | – | TLS1.2 | DigiCert Global G2 TLS RSA SHA256 2020 CA1 | — | 42 d |
| 9944 | suntory.co.jp | A | 95 | — | – | TLS1.2 | GeoTrust TLS RSA CA G1 | — | 82 d |
| 9945 | surfline.com | A | 95 | — | – | TLS1.2 | Amazon RSA 2048 M01 | — | 90 d |
| 9946 | surlatable.com | A | 95 | — | – | TLS1.2 | Amazon RSA 2048 M01 | 69 d | |
| 9947 | suumo.jp | A | 95 | — | – | TLS1.2 | DigiCert Global G2 TLS RSA SHA256 2020 CA1 | 139 d | |
| 9948 | suzuri.jp | A | 95 | — | – | TLS1.2 | GlobalSign GCC R46 DV TLS CA 2025 | 65 d | |
| 9949 | svd.se | A | 95 | — | – | TLS1.2 | Amazon RSA 2048 S20 | 194 d | |
| 9950 | switch.ch | A | 95 | — | – | TLS1.2 | DigiCert EV RSA CA G2 | 179 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.