SSL Grade Leaderboard: Top 100 Websites
Scanned from 20,000 top global websites · Updated 2026-11-08
| # | Domain | Grade | Score | 30d trend | Δ | TLS | Issuer | HSTS | Expires |
|---|---|---|---|---|---|---|---|---|---|
| 11751 | labnol.org | D | 63 | — | – | TLS1.3 | — | — | — |
| 11752 | lanl.gov | D | 63 | — | – | TLS1.3 | — | — | — |
| 11753 | linuxfoundation.org | D | 63 | — | – | TLS1.3 | — | — | |
| 11754 | lkml.org | D | 63 | — | – | TLS1.3 | — | — | |
| 11755 | logmein.com | D | 63 | — | – | TLS1.3 | — | — | — |
| 11756 | london.edu | D | 63 | — | – | TLS1.3 | — | — | |
| 11757 | lwn.net | D | 63 | — | – | TLS1.3 | — | — | |
| 11758 | mehrnews.com | D | 63 | — | – | TLS1.3 | — | — | |
| 11759 | mhanational.org | D | 63 | — | – | TLS1.3 | — | — | — |
| 11760 | minecraft.net | D | 63 | — | – | TLS1.3 | — | — | |
| 11761 | mnsu.edu | D | 63 | — | – | TLS1.3 | — | — | — |
| 11762 | mos.ru | D | 63 | — | – | TLS1.3 | — | — | — |
| 11763 | mun.ca | D | 63 | — | – | TLS1.3 | — | — | — |
| 11764 | naderman.de | D | 63 | — | – | TLS1.3 | — | — | |
| 11765 | narcity.com | D | 63 | — | – | TLS1.3 | — | — | — |
| 11766 | nccu.edu.tw | D | 63 | — | – | TLS1.3 | — | — | |
| 11767 | nick.com | D | 63 | — | – | TLS1.3 | — | — | |
| 11768 | nporadio1.nl | D | 63 | — | – | TLS1.3 | — | — | |
| 11769 | oocities.org | D | 63 | — | — | TLS1.3 | Let's Encrypt | — | 19 d |
| 11770 | openstreetmap.de | D | 63 | — | – | TLS1.3 | — | — | |
| 11771 | opentelemetry.io | D | 63 | — | – | TLS1.3 | — | — | |
| 11772 | osapublishing.org | D | 63 | — | – | TLS1.3 | — | — | — |
| 11773 | paddle.com | D | 63 | — | – | TLS1.3 | — | — | |
| 11774 | panmacmillan.com | D | 63 | — | – | TLS1.3 | — | — | |
| 11775 | paramountpictures.com | D | 63 | — | – | TLS1.3 | — | — | — |
| 11776 | paramountplus.com | D | 63 | — | – | TLS1.3 | — | — | |
| 11777 | pbslearningmedia.org | D | 63 | — | – | TLS1.3 | — | — | — |
| 11778 | pdx.edu | D | 63 | — | – | TLS1.3 | — | — | |
| 11779 | pediascape.science | D | 63 | — | – | TLS1.3 | — | — | — |
| 11780 | physorg.com | D | 63 | — | – | TLS1.3 | Sectigo Public Server Authentication CA DV R36 | — | 50 d |
| 11781 | prettier.io | D | 63 | — | – | TLS1.3 | — | — | |
| 11782 | prowritingaid.com | D | 63 | — | – | TLS1.3 | — | — | |
| 11783 | publicdomainreview.org | D | 63 | — | – | TLS1.3 | — | — | |
| 11784 | responsiblegambling.org | D | 63 | — | – | TLS1.3 | — | — | — |
| 11785 | scamwatch.gov.au | D | 63 | — | – | TLS1.3 | — | — | |
| 11786 | sfweekly.com | D | 63 | — | – | TLS1.3 | — | — | |
| 11787 | short.gy | D | 63 | — | – | TLS1.3 | — | — | — |
| 11788 | spec.org | D | 63 | — | – | TLS1.3 | — | — | |
| 11789 | squoosh.app | D | 63 | — | – | TLS1.3 | — | — | |
| 11790 | staysafeonline.org | D | 63 | — | – | TLS1.3 | — | — | |
| 11791 | tap.bio | D | 63 | — | – | TLS1.3 | — | — | |
| 11792 | terra.es | D | 63 | — | – | TLS1.3 | Valid Certificadora RSA OV SSL CA 2 | — | 82 d |
| 11793 | thedailyshow.com | D | 63 | — | – | TLS1.3 | — | — | — |
| 11794 | themanual.com | D | 63 | — | – | TLS1.3 | — | — | |
| 11795 | theodysseyonline.com | D | 63 | — | – | TLS1.3 | — | — | — |
| 11796 | theorg.com | D | 63 | — | – | TLS1.3 | — | — | |
| 11797 | thoughtcatalog.com | D | 63 | — | – | TLS1.3 | — | — | |
| 11798 | tomsk.ru | D | 63 | — | – | TLS1.3 | — | — | — |
| 11799 | tu-freiberg.de | D | 63 | — | – | TLS1.3 | — | — | |
| 11800 | unb.ca | D | 63 | — | – | TLS1.3 | — | — |
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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.