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 |
|---|---|---|---|---|---|---|---|---|---|
| 7451 | iupui.edu | A | 98 | — | – | TLS1.3 | InCommon Intermediate CA - DVG2C | — | 159 d |
| 7452 | ivoox.com | A | 98 | — | – | TLS1.3 | Sectigo Public Server Authentication CA DV R36 | — | 110 d |
| 7453 | izi.travel | A | 98 | — | – | TLS1.3 | Certera RSA DV SSL CA 2 | — | 176 d |
| 7454 | jboss.org | A | 98 | — | – | TLS1.3 | Let's Encrypt | 51 d | |
| 7455 | jci.org | A | 98 | — | – | TLS1.3 | Let's Encrypt | — | 54 d |
| 7456 | jcyl.es | A | 98 | — | – | TLS1.3 | Sectigo Public Server Authentication CA OV R36 | — | 182 d |
| 7457 | jdsupra.com | A | 98 | — | – | TLS1.3 | GoDaddy TLS Intermediate CA DV - R1v1 | — | 135 d |
| 7458 | journalism.org | A | 98 | — | – | TLS1.3 | Let's Encrypt | — | 45 d |
| 7459 | jrank.org | A | 98 | — | – | TLS1.3 | Let's Encrypt | — | 68 d |
| 7460 | json.org | A | 98 | — | – | TLS1.3 | Sectigo Public Server Authentication CA DV R36 | — | 91 d |
| 7461 | juraforum.de | A | 98 | — | – | TLS1.3 | Starfield TLS Intermediate CA DV - R1v1 | — | 162 d |
| 7462 | jurist.org | A | 98 | — | – | TLS1.3 | Let's Encrypt | — | 67 d |
| 7463 | justia.com | A | 98 | — | – | TLS1.3 | Sectigo Public Server Authentication CA DV R36 | — | 31 d |
| 7464 | justice.fr | A | 98 | — | – | TLS1.3 | Sectigo Public Server Authentication CA EV R36 | — | 64 d |
| 7465 | k-state.edu | A | 98 | — | – | TLS1.3 | InCommon Intermediate CA - OVG2C | — | 91 d |
| 7466 | kairaweb.com | A | 98 | — | – | TLS1.3 | Let's Encrypt | — | 53 d |
| 7467 | kaltura.com | A | 98 | — | – | TLS1.3 | Sectigo Public Server Authentication CA EV R36 | — | 166 d |
| 7468 | katadata.co.id | A | 98 | — | – | TLS1.3 | Sectigo Public Server Authentication CA DV R36 | — | 33 d |
| 7469 | kaywa.com | A | 98 | — | – | TLS1.3 | Let's Encrypt | — | 83 d |
| 7470 | kb.se | A | 98 | — | – | TLS1.3 | GEANT TLS RSA 1 | — | 92 d |
| 7471 | kbb.com | A | 98 | — | – | TLS1.3 | Let's Encrypt | — | 78 d |
| 7472 | keras.io | A | 98 | — | – | TLS1.3 | Google Trust Services | — | 32 d |
| 7473 | kew.org | A | 98 | — | – | TLS1.3 | Let's Encrypt | — | 32 d |
| 7474 | keywordseverywhere.com | A | 98 | — | – | TLS1.3 | Let's Encrypt | — | 82 d |
| 7475 | kfc.com | A | 98 | — | – | TLS1.3 | Let's Encrypt | — | 82 d |
| 7476 | kff.org | A | 98 | — | – | TLS1.3 | Let's Encrypt | — | 63 d |
| 7477 | kffhealthnews.org | A | 98 | — | – | TLS1.3 | Let's Encrypt | — | 45 d |
| 7478 | khn.org | A | 98 | — | – | TLS1.3 | Let's Encrypt | — | 48 d |
| 7479 | kiddle.co | A | 98 | — | – | TLS1.3 | GoDaddy TLS Intermediate CA DV - R1v1 | — | 72 d |
| 7480 | king-wifi.win | A | 98 | — | – | TLS1.3 | Let's Encrypt | — | 79 d |
| 7481 | km.ru | A | 98 | — | – | TLS1.3 | Let's Encrypt | — | 34 d |
| 7482 | knesset.gov.il | A | 98 | — | – | TLS1.3 | Sectigo Public Server Authentication CA OV R36 | — | 168 d |
| 7483 | konbini.com | A | 98 | — | – | TLS1.3 | Let's Encrypt | — | 69 d |
| 7484 | kontan.co.id | A | 98 | — | – | TLS1.3 | Sectigo Public Server Authentication CA DV R36 | — | 155 d |
| 7485 | korea.net | A | 98 | — | – | TLS1.3 | Sectigo Public Server Authentication CA DV R36 | — | 112 d |
| 7486 | koreajoongangdaily.com | A | 98 | — | – | TLS1.3 | Let's Encrypt | — | 58 d |
| 7487 | koreatimes.co.kr | A | 98 | — | – | TLS1.3 | Sectigo Public Server Authentication CA DV R36 | — | 196 d |
| 7488 | kormany.hu | A | 98 | — | – | TLS1.3 | e-Szigno RSA OV TLS CA 2026 | — | 172 d |
| 7489 | ksu.edu | A | 98 | — | – | TLS1.3 | InCommon Intermediate CA - OVG2C | — | 91 d |
| 7490 | ktvu.com | A | 98 | — | – | TLS1.3 | Let's Encrypt | 67 d | |
| 7491 | kubuntu.org | A | 98 | — | – | TLS1.3 | Let's Encrypt | — | 65 d |
| 7492 | l.ink | A | 98 | — | – | TLS1.3 | Let's Encrypt | — | 59 d |
| 7493 | la7.it | A | 98 | — | – | TLS1.3 | Let's Encrypt | — | 47 d |
| 7494 | lacounty.gov | A | 98 | — | – | TLS1.3 | Sectigo Public Server Authentication CA EV R36 | — | 195 d |
| 7495 | lancaster.ac.uk | A | 98 | — | – | TLS1.3 | Let's Encrypt | 61 d | |
| 7496 | lancs.ac.uk | A | 98 | — | – | TLS1.3 | Let's Encrypt | — | 61 d |
| 7497 | lanzoui.com | A | 98 | — | – | TLS1.3 | GlobalSign GCC R46 AlphaSSL CA 2025 | — | 127 d |
| 7498 | laodong.vn | A | 98 | — | – | TLS1.3 | Sectigo Public Server Authentication CA DV R36 | — | 54 d |
| 7499 | laopinion.com | A | 98 | — | – | TLS1.3 | Let's Encrypt | — | 70 d |
| 7500 | last.fm | A | 98 | — | – | TLS1.3 | Sectigo Public Server Authentication CA OV R36 | 111 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.