SSL Grade Leaderboard: Top 100 Websites
Scanned from 20,000 top global websites · Updated 2026-11-05
| # | Domain | Grade | Score | 30d trend | Δ | TLS | Issuer | HSTS | Expires |
|---|---|---|---|---|---|---|---|---|---|
| 2301 | nla.gov.au | A | 100 | — | – | TLS1.3 | Let's Encrypt | — | 55 d |
| 2302 | nm.ru | A | 100 | — | – | TLS1.3 | nm.ru | — | 201 d |
| 2303 | nodered.org | A | 100 | — | – | TLS1.3 | Let's Encrypt | — | 73 d |
| 2304 | nomoreransom.org | A | 100 | — | – | TLS1.3 | GlobalSign RSA OV SSL CA 2018 | — | 95 d |
| 2305 | nonexsistmysite.com | A | 100 | — | – | TLS1.3 | Sectigo Public Server Authentication CA DV R36 | — | 79 d |
| 2306 | noradsanta.org | A | 100 | — | – | TLS1.3 | DigiCert Global G2 TLS RSA SHA256 2020 CA1 | — | 128 d |
| 2307 | nordbayern.de | A | 100 | — | – | TLS1.3 | Sectigo Public Server Authentication CA DV R36 | — | 50 d |
| 2308 | nordot.app | A | 100 | — | – | TLS1.3 | Google Trust Services | — | 64 d |
| 2309 | northwell.edu | A | 100 | — | – | TLS1.3 | GeoTrust TLS RSA CA G1 | — | 30 d |
| 2310 | norvig.com | A | 100 | — | – | TLS1.3 | Let's Encrypt | — | 57 d |
| 2311 | notaires.fr | A | 100 | — | – | TLS1.3 | GlobalSign Atlas R46 DV TLS CA 2026 Q4 | — | 69 d |
| 2312 | notebook.google | A | 100 | — | – | TLS1.3 | Google Trust Services | — | 55 d |
| 2313 | notebooklm.google | A | 100 | — | – | TLS1.3 | Google Trust Services | — | 55 d |
| 2314 | notonthehighstreet.com | A | 100 | — | – | TLS1.3 | Amazon RSA 2048 M01 | — | 195 d |
| 2315 | nottingham.ac.uk | A | 100 | — | – | TLS1.3 | Sectigo Public Server Authentication CA OV R36 | — | 59 d |
| 2316 | nouvelobs.com | A | 100 | — | – | TLS1.3 | GlobalSign Atlas R3 DV TLS CA 2025 Q4 | — | 54 d |
| 2317 | novotel.com | A | 100 | — | – | TLS1.3 | Let's Encrypt | — | 61 d |
| 2318 | now.sh | A | 100 | — | – | TLS1.3 | Google Trust Services | — | 87 d |
| 2319 | npd.com | A | 100 | — | – | TLS1.3 | DigiCert Global G2 TLS RSA SHA256 2020 CA1 | — | 170 d |
| 2320 | nplusonemag.com | A | 100 | — | – | TLS1.3 | Let's Encrypt | — | 87 d |
| 2321 | npr.org | A | 100 | TLS1.3 | Amazon RSA 2048 M01 | — | 117 d | ||
| 2322 | nsf.org | A | 100 | — | – | TLS1.3 | Let's Encrypt | — | 80 d |
| 2323 | nsidc.org | A | 100 | — | – | TLS1.3 | Let's Encrypt | — | 36 d |
| 2324 | nsta.org | A | 100 | — | – | TLS1.3 | Let's Encrypt | 64 d | |
| 2325 | ntnu.edu | A | 100 | — | – | TLS1.3 | GEANT TLS RSA 1 | — | 93 d |
| 2326 | ntnu.no | A | 100 | — | – | TLS1.3 | GEANT TLS RSA 1 | — | 95 d |
| 2327 | nts.org.uk | A | 100 | — | – | TLS1.3 | Let's Encrypt | — | 37 d |
| 2328 | ntv.ru | A | 100 | — | – | TLS1.3 | GlobalSign GCC R46 OV TLS CA 2025 | 151 d | |
| 2329 | nu.nl | A | 100 | — | – | TLS1.3 | DigiCert Global G3 TLS ECC SHA384 2020 CA1 | — | 108 d |
| 2330 | nuigalway.ie | A | 100 | — | – | TLS1.3 | Amazon RSA 2048 M01 | — | 190 d |
| 2331 | nursingtimes.net | A | 100 | — | – | TLS1.3 | Amazon RSA 2048 M04 | — | 63 d |
| 2332 | nvie.com | A | 100 | — | – | TLS1.3 | Let's Encrypt | — | 77 d |
| 2333 | nwpu.edu.cn | A | 100 | — | – | TLS1.3 | GlobalSign GCC R3 DV TLS CA 2020 | — | 160 d |
| 2334 | nwsource.com | A | 100 | — | – | TLS1.3 | Amazon RSA 2048 M01 | — | 125 d |
| 2335 | nxtbook.com | A | 100 | — | – | TLS1.3 | Amazon RSA 2048 M01 | — | 124 d |
| 2336 | ny.gov | A | 100 | — | – | TLS1.3 | GlobalSign GCC R46 OV TLS CA 2025 | 100 d | |
| 2337 | nyctourism.com | A | 100 | — | – | TLS1.3 | Amazon RSA 2048 M01 | — | 131 d |
| 2338 | nyt.com | A | 100 | — | – | TLS1.3 | Thawte TLS RSA CA G1 | — | 135 d |
| 2339 | nyti.ms | A | 100 | — | – | TLS1.3 | Let's Encrypt | — | 88 d |
| 2340 | oberlin.edu | A | 100 | — | – | TLS1.3 | Let's Encrypt | 70 d | |
| 2341 | ocado.com | A | 100 | — | – | TLS1.3 | Amazon RSA 2048 M01 | — | 187 d |
| 2342 | oceana.org | A | 100 | — | – | TLS1.3 | Let's Encrypt | 65 d | |
| 2343 | ocn.ne.jp | A | 100 | — | – | TLS1.3 | Cybertrust Japan SureServer EV CA G3 | — | 87 d |
| 2344 | ocnk.net | A | 100 | — | – | TLS1.3 | Let's Encrypt | 45 d | |
| 2345 | oddsshark.com | A | 100 | — | – | TLS1.3 | Amazon RSA 2048 M01 | — | 84 d |
| 2346 | odnoklassniki.ru | A | 100 | — | – | TLS1.3 | HARICA DV TLS RSA | — | 182 d |
| 2347 | odoo.com | A | 100 | — | – | TLS1.3 | Let's Encrypt | — | 49 d |
| 2348 | odu.edu | A | 100 | — | – | TLS1.3 | Let's Encrypt | 69 d | |
| 2349 | oecd-ilibrary.org | A | 100 | — | – | TLS1.3 | Let's Encrypt | — | 58 d |
| 2350 | oercommons.org | A | 100 | — | – | TLS1.3 | Amazon RSA 2048 M01 | — | 117 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.