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 |
|---|---|---|---|---|---|---|---|---|---|
| 5901 | pornhub.com | A+ | 100 | — | – | TLS1.3 | DigiCert Global G3 TLS ECC SHA384 2020 CA1 | 84 d | |
| 5902 | port.ac.uk | A+ | 100 | — | – | TLS1.3 | Sectigo Public Server Authentication CA DV R36 | 35 d | |
| 5903 | portableapps.com | A+ | 100 | — | – | TLS1.3 | Let's Encrypt | 50 d | |
| 5904 | portent.com | A+ | 100 | — | – | TLS1.3 | Google Trust Services | 32 d | |
| 5905 | portswigger.net | A+ | 100 | — | – | TLS1.3 | Amazon RSA 2048 M01 | 86 d | |
| 5906 | poshmark.com | A+ | 100 | — | – | TLS1.3 | Amazon RSA 2048 M01 | 122 d | |
| 5907 | posit.co | A+ | 100 | — | – | TLS1.3 | Amazon RSA 2048 M04 | 123 d | |
| 5908 | post.ch | A+ | 100 | — | – | TLS1.3 | SwissSign RSA TLS OV ICA 2022 - 1 | 176 d | |
| 5909 | postandcourier.com | A+ | 100 | — | – | TLS1.3 | Google Trust Services | 44 d | |
| 5910 | postermywall.com | A+ | 100 | — | – | TLS1.3 | Amazon RSA 2048 M01 | 173 d | |
| 5911 | postgresql.org | A+ | 100 | — | – | TLS1.3 | Let's Encrypt | 53 d | |
| 5912 | posthog.com | A+ | 100 | — | – | TLS1.3 | Let's Encrypt | 35 d | |
| 5913 | postoffice.co.uk | A+ | 100 | — | – | TLS1.3 | Let's Encrypt | 58 d | |
| 5914 | power-technology.com | A+ | 100 | — | – | TLS1.3 | Let's Encrypt | 52 d | |
| 5915 | powerschool.com | A+ | 100 | — | – | TLS1.3 | Sectigo Public Server Authentication CA OV R36 | 117 d | |
| 5916 | ppg.com | A+ | 100 | — | – | TLS1.3 | DigiCert Global G2 TLS RSA SHA256 2020 CA1 | 168 d | |
| 5917 | prada.com | A+ | 100 | — | – | TLS1.3 | Let's Encrypt | 86 d | |
| 5918 | pratt.edu | A+ | 100 | — | – | TLS1.3 | Let's Encrypt | 52 d | |
| 5919 | pravo.ru | A+ | 100 | — | – | TLS1.3 | Let's Encrypt | 69 d | |
| 5920 | prb.org | A+ | 100 | — | – | TLS1.3 | Google Trust Services | 73 d | |
| 5921 | premierinn.com | A+ | 100 | — | – | TLS1.3 | DigiCert Global G3 TLS ECC SHA384 2020 CA1 | 94 d | |
| 5922 | premiumoutlets.com | A+ | 100 | — | – | TLS1.3 | DigiCert Global G2 TLS RSA SHA256 2020 CA1 | 102 d | |
| 5923 | preprints.org | A+ | 100 | — | – | TLS1.3 | Let's Encrypt | 31 d | |
| 5924 | president.jp | A+ | 100 | — | – | TLS1.3 | GlobalSign GCC R46 OV TLS CA 2025 | 180 d | |
| 5925 | pressenza.com | A+ | 100 | — | – | TLS1.3 | Let's Encrypt | 64 d | |
| 5926 | pretix.eu | A+ | 100 | — | – | TLS1.3 | Let's Encrypt | 77 d | |
| 5927 | prevention.com | A+ | 100 | — | – | TLS1.3 | GlobalSign Atlas R46 DV TLS CA 2026 Q4 | 196 d | |
| 5928 | priceline.com | A+ | 100 | — | – | TLS1.3 | GlobalSign Atlas R46 DV TLS CA 2026 Q3 | 121 d | |
| 5929 | primark.com | A+ | 100 | — | – | TLS1.3 | DigiCert Global G3 TLS ECC SHA384 2020 CA1 | 117 d | |
| 5930 | primevideo.com | A+ | 100 | — | – | TLS1.3 | Amazon RSA 2048 M01 | 97 d | |
| 5931 | prismic.io | A+ | 100 | — | – | TLS1.3 | Amazon RSA 2048 M01 | 154 d | |
| 5932 | procore.com | A+ | 100 | — | – | TLS1.3 | Let's Encrypt | 62 d | |
| 5933 | procreate.com | A+ | 100 | — | – | TLS1.3 | Amazon RSA 2048 M01 | 98 d | |
| 5934 | prodigygame.com | A+ | 100 | — | – | TLS1.3 | Amazon RSA 2048 M01 | 147 d | |
| 5935 | prohosting.com | A+ | 100 | — | – | TLS1.3 | Let's Encrypt | 54 d | |
| 5936 | project-syndicate.org | A+ | 100 | — | – | TLS1.3 | GeoTrust TLS RSA CA G1 | 159 d | |
| 5937 | projecteuclid.org | A+ | 100 | — | – | TLS1.3 | GlobalSign Atlas R46 DV TLS CA 2026 Q3 | 34 d | |
| 5938 | projecteuler.net | A+ | 100 | — | – | TLS1.3 | Let's Encrypt | 32 d | |
| 5939 | prom.ua | A+ | 100 | — | – | TLS1.3 | ZeroSSL RSA DV SSL CA 2 | 37 d | |
| 5940 | promptingguide.ai | A+ | 100 | — | – | TLS1.3 | Let's Encrypt | 38 d | |
| 5941 | prospect.org | A+ | 100 | — | – | TLS1.3 | Google Trust Services | 79 d | |
| 5942 | prospectmagazine.co.uk | A+ | 100 | — | – | TLS1.3 | Amazon RSA 2048 M01 | 90 d | |
| 5943 | protobuf.dev | A+ | 100 | — | – | TLS1.3 | Let's Encrypt | 72 d | |
| 5944 | proton.me | A+ | 100 | — | – | TLS1.3 | Let's Encrypt | 80 d | |
| 5945 | providencejournal.com | A+ | 100 | — | – | TLS1.3 | Let's Encrypt | 77 d | |
| 5946 | prsa.org | A+ | 100 | — | – | TLS1.3 | Amazon RSA 2048 M01 | 52 d | |
| 5947 | prtimes.jp | A+ | 100 | — | – | TLS1.3 | GlobalSign Atlas R3 DV TLS CA 2026 Q2 | 95 d | |
| 5948 | psl.eu | A+ | 100 | — | – | TLS1.3 | GEANT TLS RSA 1 | 28 d | |
| 5949 | psychcentral.com | A+ | 100 | — | – | TLS1.3 | Amazon RSA 2048 M01 | 53 d | |
| 5950 | ptb.de | A+ | 100 | — | – | TLS1.3 | Let's Encrypt | 71 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.