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 |
|---|---|---|---|---|---|---|---|---|---|
| 7601 | nielsen.com | A | 98 | — | – | TLS1.3 | Let's Encrypt | 70 d | |
| 7602 | nip.io | A | 98 | — | – | TLS1.3 | Let's Encrypt | — | 41 d |
| 7603 | nndb.com | A | 98 | — | — | TLS1.3 | Let's Encrypt | — | 0 d |
| 7604 | norton.com | A | 98 | — | – | TLS1.3 | Sectigo Public Server Authentication CA OV R36 | — | 176 d |
| 7605 | npage.de | A | 98 | — | – | TLS1.3 | Let's Encrypt | — | 64 d |
| 7606 | npostart.nl | A | 98 | — | – | TLS1.3 | Let's Encrypt | — | 46 d |
| 7607 | nrdc.org | A | 98 | — | – | TLS1.3 | Let's Encrypt | — | 79 d |
| 7608 | ntfy.sh | A | 98 | — | – | TLS1.3 | Let's Encrypt | — | 87 d |
| 7609 | numbeo.com | A | 98 | — | – | TLS1.3 | Let's Encrypt | — | 84 d |
| 7610 | nutrition.org | A | 98 | — | – | TLS1.3 | Let's Encrypt | — | 29 d |
| 7611 | nw.de | A | 98 | — | – | TLS1.3 | Sectigo Public Server Authentication CA DV R36 | — | 173 d |
| 7612 | oecd.ai | A | 98 | — | – | TLS1.3 | Let's Encrypt | — | 60 d |
| 7613 | oeeee.com | A | 98 | — | – | TLS1.3 | TrustAsia DV TLS RSA CA 2024 | — | 56 d |
| 7614 | officialcharts.com | A | 98 | — | – | TLS1.3 | Let's Encrypt | — | 69 d |
| 7615 | omniglot.com | A | 98 | — | – | TLS1.3 | Let's Encrypt | — | 67 d |
| 7616 | omsystem.com | A | 98 | — | – | TLS1.3 | FujiSSL RSA Organization Validation Secure Server CA 2 | 28 d | |
| 7617 | onelink.to | A | 98 | — | – | TLS1.3 | Let's Encrypt | — | 58 d |
| 7618 | onf.ru | A | 98 | — | – | TLS1.3 | GlobalSign GCC R46 AlphaSSL CA 2025 | — | 163 d |
| 7619 | online.fr | A | 98 | — | – | TLS1.3 | Let's Encrypt | — | 64 d |
| 7620 | onlinecamgirl.com | A | 98 | — | – | TLS1.3 | Let's Encrypt | — | 75 d |
| 7621 | opednews.com | A | 98 | — | – | TLS1.3 | Let's Encrypt | — | 31 d |
| 7622 | openapis.org | A | 98 | — | – | TLS1.3 | Let's Encrypt | 33 d | |
| 7623 | openclipart.org | A | 98 | — | – | TLS1.3 | Let's Encrypt | — | 77 d |
| 7624 | opendemocracy.net | A | 98 | — | – | TLS1.3 | Let's Encrypt | — | 70 d |
| 7625 | openoffice.org | A | 98 | — | – | TLS1.3 | Sectigo Public Server Authentication CA DV R36 | — | 49 d |
| 7626 | opensourcebridge.science | A | 98 | — | – | TLS1.3 | Let's Encrypt | — | 79 d |
| 7627 | openstreetmap.fr | A | 98 | — | – | TLS1.3 | Let's Encrypt | — | 52 d |
| 7628 | opensuse.org | A | 98 | — | – | TLS1.3 | Let's Encrypt | — | 84 d |
| 7629 | openweathermap.org | A | 98 | — | – | TLS1.3 | Let's Encrypt | — | 62 d |
| 7630 | orgmode.org | A | 98 | — | – | TLS1.3 | Let's Encrypt | — | 58 d |
| 7631 | oriflame.com | A | 98 | — | – | TLS1.3 | Sectigo Public Server Authentication CA OV R36 | 72 d | |
| 7632 | orthoinfo.org | A | 98 | — | – | TLS1.3 | GoDaddy TLS Intermediate CA DV - R1v1 | — | 173 d |
| 7633 | osgeo.org | A | 98 | — | – | TLS1.3 | Let's Encrypt | — | 38 d |
| 7634 | oszk.hu | A | 98 | — | – | TLS1.3 | Let's Encrypt | 82 d | |
| 7635 | ottawa.ca | A | 98 | — | – | TLS1.3 | Entrust OV TLS Issuing RSA CA 2 | — | 160 d |
| 7636 | otzywy.com | A | 98 | — | – | TLS1.3 | Let's Encrypt | — | 43 d |
| 7637 | out.com | A | 98 | — | – | TLS1.3 | Let's Encrypt | — | 36 d |
| 7638 | ovationtix.com | A | 98 | — | – | TLS1.3 | Let's Encrypt | — | 30 d |
| 7639 | ovh.co.uk | A | 98 | — | – | TLS1.3 | Let's Encrypt | — | 51 d |
| 7640 | ovh.com | A | 98 | — | – | TLS1.3 | Let's Encrypt | — | 51 d |
| 7641 | ovhcloud.com | A | 98 | — | – | TLS1.3 | Let's Encrypt | — | 53 d |
| 7642 | ox.ac.uk | A | 98 | — | – | TLS1.3 | Let's Encrypt | 58 d | |
| 7643 | oxfordbibliographies.com | A | 98 | — | – | TLS1.3 | Let's Encrypt | — | 66 d |
| 7644 | oxfordjournals.org | A | 98 | — | – | TLS1.3 | Let's Encrypt | — | 62 d |
| 7645 | oxfordre.com | A | 98 | — | – | TLS1.3 | Let's Encrypt | — | 62 d |
| 7646 | ozerov.de | A | 98 | — | – | TLS1.3 | Let's Encrypt | — | 38 d |
| 7647 | page-stats.de | A | 98 | — | – | TLS1.3 | Let's Encrypt | — | 66 d |
| 7648 | page.tl | A | 98 | — | – | TLS1.3 | Let's Encrypt | — | 74 d |
| 7649 | palletsprojects.com | A | 98 | — | – | TLS1.3 | Let's Encrypt | — | 60 d |
| 7650 | papermag.com | A | 98 | — | – | TLS1.3 | Let's Encrypt | — | 35 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.