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 |
|---|---|---|---|---|---|---|---|---|---|
| 7401 | howard.edu | A | 98 | — | – | TLS1.3 | GoDaddy TLS Intermediate CA DV - R1v1 | — | 53 d |
| 7402 | httpbin.org | A | 98 | — | – | TLS1.3 | Let's Encrypt | — | 81 d |
| 7403 | htw-berlin.de | A | 98 | — | – | TLS1.3 | GEANT TLS RSA 1 | — | 183 d |
| 7404 | huaban.com | A | 98 | — | – | TLS1.3 | RapidSSL TLS RSA CA G1 | — | 123 d |
| 7405 | humanlove.stream | A | 98 | — | – | TLS1.3 | Let's Encrypt | — | 76 d |
| 7406 | i0.wp.com | A | 98 | — | – | TLS1.3 | Let's Encrypt | — | 53 d |
| 7407 | ibiblio.org | A | 98 | — | – | TLS1.3 | InCommon Intermediate CA - OVG2C | — | 188 d |
| 7408 | ibtimes.com | A | 98 | — | – | TLS1.3 | Let's Encrypt | — | 37 d |
| 7409 | iccsafe.org | A | 98 | — | – | TLS1.3 | Sectigo Public Server Authentication CA OV R36 | — | 32 d |
| 7410 | icicibank.com | A | 98 | — | – | TLS1.3 | Sectigo Public Server Authentication CA OV R36 | — | 44 d |
| 7411 | iclg.com | A | 98 | — | – | TLS1.3 | Let's Encrypt | — | 38 d |
| 7412 | iconarchive.com | A | 98 | — | – | TLS1.3 | Let's Encrypt | — | 59 d |
| 7413 | idc.com | A | 98 | — | – | TLS1.3 | Let's Encrypt | 76 d | |
| 7414 | iframe.ly | A | 98 | — | – | TLS1.3 | Let's Encrypt | — | 48 d |
| 7415 | iframe.mediadelivery.net | A | 98 | — | – | TLS1.3 | Sectigo Public Server Authentication CA DV R36 | — | 101 d |
| 7416 | ifw-kiel.de | A | 98 | — | – | TLS1.3 | Let's Encrypt | — | 43 d |
| 7417 | ijg.org | A | 98 | — | – | TLS1.3 | Sectigo Public Server Authentication CA DV R36 | — | 56 d |
| 7418 | ikmultimedia.com | A | 98 | — | – | TLS1.3 | Let's Encrypt | 64 d | |
| 7419 | illinois.edu | A | 98 | — | – | TLS1.3 | InCommon RSA Server CA 2 | 31 d | |
| 7420 | ilmattino.it | A | 98 | — | – | TLS1.3 | Trustico RSA DV SSL CA 2 | — | 56 d |
| 7421 | ilmessaggero.it | A | 98 | — | – | TLS1.3 | Trustico RSA DV SSL CA 2 | — | 64 d |
| 7422 | imagebam.com | A | 98 | — | – | TLS1.3 | Let's Encrypt | — | 58 d |
| 7423 | imagevenue.com | A | 98 | — | – | TLS1.3 | Let's Encrypt | — | 58 d |
| 7424 | imgbox.com | A | 98 | — | – | TLS1.3 | Let's Encrypt | — | 58 d |
| 7425 | imoodle.win | A | 98 | — | – | TLS1.3 | Let's Encrypt | — | 60 d |
| 7426 | imslp.org | A | 98 | — | – | TLS1.3 | Let's Encrypt | — | 49 d |
| 7427 | incompetech.com | A | 98 | — | – | TLS1.3 | Let's Encrypt | — | 45 d |
| 7428 | independent.com | A | 98 | — | – | TLS1.3 | Let's Encrypt | — | 28 d |
| 7429 | indexcopernicus.com | A | 98 | — | – | TLS1.3 | home pl DV TLS G2 R36 CA | — | 147 d |
| 7430 | indiamart.com | A | 98 | — | – | TLS1.3 | Sectigo Public Server Authentication CA OV R36 | — | 132 d |
| 7431 | indiana.edu | A | 98 | — | – | TLS1.3 | InCommon Intermediate CA - DVG2C | — | 159 d |
| 7432 | industry.gov.au | A | 98 | — | – | TLS1.3 | Let's Encrypt | — | 85 d |
| 7433 | indymedia.org | A | 98 | — | – | TLS1.3 | Let's Encrypt | — | 77 d |
| 7434 | inews.co.uk | A | 98 | — | – | TLS1.3 | Let's Encrypt | — | 69 d |
| 7435 | infomaniak.com | A | 98 | — | – | TLS1.3 | Sectigo Public Server Authentication CA DV R36 | — | 111 d |
| 7436 | infosecurity-magazine.com | A | 98 | — | – | TLS1.3 | GlobalSign GCC R46 OV TLS CA 2025 | — | 189 d |
| 7437 | infranken.de | A | 98 | — | – | TLS1.3 | Sectigo Public Server Authentication CA DV R36 | — | 97 d |
| 7438 | inra.fr | A | 98 | — | – | TLS1.3 | GEANT TLS RSA 1 | — | 92 d |
| 7439 | int-res.com | A | 98 | — | – | TLS1.3 | Let's Encrypt | — | 66 d |
| 7440 | intensedebate.com | A | 98 | — | – | TLS1.3 | Let's Encrypt | — | 41 d |
| 7441 | interieur.gouv.fr | A | 98 | — | – | TLS1.3 | Let's Encrypt | — | 40 d |
| 7442 | iobit.com | A | 98 | — | – | TLS1.3 | GoDaddy TLS Intermediate CA DV - R1v1 | — | 131 d |
| 7443 | ioplex.com | A | 98 | — | – | TLS1.3 | Let's Encrypt | — | 76 d |
| 7444 | ip138.com | A | 98 | — | – | TLS1.3 | GlobalSign GCC R46 AlphaSSL CA 2025 | — | 190 d |
| 7445 | israelnationalnews.com | A | 98 | — | – | TLS1.3 | Let's Encrypt | — | 82 d |
| 7446 | istoe.com.br | A | 98 | — | – | TLS1.3 | Let's Encrypt | — | 51 d |
| 7447 | it.com | A | 98 | — | – | TLS1.3 | Let's Encrypt | — | 54 d |
| 7448 | itamaraty.gov.br | A | 98 | — | – | TLS1.3 | Sectigo Public Server Authentication CA DV R36 | — | 180 d |
| 7449 | ithome.com | A | 98 | — | – | TLS1.3 | Sectigo Public Server Authentication CA DV R36 | — | 52 d |
| 7450 | iu.edu | A | 98 | — | – | TLS1.3 | InCommon Intermediate CA - DVG2C | — | 196 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.