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 |
|---|---|---|---|---|---|---|---|---|---|
| 6551 | tripadvisor.com.au | A+ | 100 | — | – | TLS1.3 | Amazon RSA 2048 M04 | 118 d | |
| 6552 | tripadvisor.com.br | A+ | 100 | — | – | TLS1.3 | Amazon RSA 2048 M04 | 118 d | |
| 6553 | tripadvisor.de | A+ | 100 | — | – | TLS1.3 | Amazon RSA 2048 M04 | 118 d | |
| 6554 | tripadvisor.es | A+ | 100 | — | – | TLS1.3 | Amazon RSA 2048 M04 | 118 d | |
| 6555 | tripadvisor.fr | A+ | 100 | — | – | TLS1.3 | Amazon RSA 2048 M04 | 118 d | |
| 6556 | tripadvisor.ie | A+ | 100 | — | – | TLS1.3 | Amazon RSA 2048 M04 | 118 d | |
| 6557 | tripadvisor.in | A+ | 100 | — | – | TLS1.3 | Amazon RSA 2048 M04 | 118 d | |
| 6558 | tripadvisor.it | A+ | 100 | — | – | TLS1.3 | Amazon RSA 2048 M04 | 118 d | |
| 6559 | tripadvisor.jp | A+ | 100 | — | – | TLS1.3 | Amazon RSA 2048 M04 | 118 d | |
| 6560 | tripadvisor.nl | A+ | 100 | — | – | TLS1.3 | Amazon RSA 2048 M04 | 118 d | |
| 6561 | tripadvisor.ru | A+ | 100 | — | – | TLS1.3 | GlobalSign RSA OV SSL CA 2018 | 130 d | |
| 6562 | tripwire.com | A+ | 100 | — | – | TLS1.3 | Let's Encrypt | 51 d | |
| 6563 | trivago.com | A+ | 100 | — | – | TLS1.3 | GeoTrust TLS ECC CA G1 | 42 d | |
| 6564 | trthaber.com | A+ | 100 | — | – | TLS1.3 | Let's Encrypt | 38 d | |
| 6565 | trustedshops.com | A+ | 100 | — | – | TLS1.3 | Amazon RSA 2048 M01 | 149 d | |
| 6566 | trustedshops.de | A+ | 100 | — | – | TLS1.3 | Amazon RSA 2048 M01 | 149 d | |
| 6567 | truthsocial.com | A+ | 100 | — | – | TLS1.3 | Google Trust Services | 74 d | |
| 6568 | trybooking.com | A+ | 100 | — | – | TLS1.3 | Amazon RSA 2048 M04 | 68 d | |
| 6569 | tsa.gov | A+ | 100 | — | – | TLS1.3 | DigiCert Global G3 TLS ECC SHA384 2020 CA1 | 94 d | |
| 6570 | tsargrad.tv | A+ | 100 | — | – | TLS1.3 | ZeroSSL RSA DV SSL CA 2 | 170 d | |
| 6571 | tt.com | A+ | 100 | — | – | TLS1.3 | Amazon RSA 2048 M04 | 187 d | |
| 6572 | tu-braunschweig.de | A+ | 100 | — | – | TLS1.3 | GEANT TLS RSA 1 | 92 d | |
| 6573 | tu-clausthal.de | A+ | 100 | — | – | TLS1.3 | Let's Encrypt | 59 d | |
| 6574 | tu-darmstadt.de | A+ | 100 | — | – | TLS1.3 | GEANT TLS ECC 1 | 92 d | |
| 6575 | tu-dortmund.de | A+ | 100 | — | – | TLS1.3 | GEANT TLS RSA 1 | 98 d | |
| 6576 | tu-dresden.de | A+ | 100 | — | – | TLS1.3 | GEANT TLS ECC 1 | 162 d | |
| 6577 | tu-ilmenau.de | A+ | 100 | — | – | TLS1.3 | GEANT TLS RSA 1 | 134 d | |
| 6578 | tuasaude.com | A+ | 100 | — | – | TLS1.3 | Amazon RSA 2048 M01 | 179 d | |
| 6579 | tucson.com | A+ | 100 | — | – | TLS1.3 | Google Trust Services | 79 d | |
| 6580 | tudelft.nl | A+ | 100 | — | – | TLS1.3 | GEANT TLS RSA 1 | 93 d | |
| 6581 | tue.nl | A+ | 100 | — | – | TLS1.3 | Let's Encrypt | 39 d | |
| 6582 | tugraz.at | A+ | 100 | — | – | TLS1.3 | GEANT TLS RSA 1 | 92 d | |
| 6583 | tui.co.uk | A+ | 100 | — | – | TLS1.3 | Thawte TLS ECC CA G1 | 88 d | |
| 6584 | tuko.co.ke | A+ | 100 | — | – | TLS1.3 | Amazon RSA 2048 M04 | 139 d | |
| 6585 | tulsaworld.com | A+ | 100 | — | – | TLS1.3 | Google Trust Services | 57 d | |
| 6586 | tum.de | A+ | 100 | — | – | TLS1.3 | Let's Encrypt | 78 d | |
| 6587 | turnto10.com | A+ | 100 | — | – | TLS1.3 | Amazon RSA 2048 M01 | 77 d | |
| 6588 | tuv.com | A+ | 100 | — | – | TLS1.3 | Actalis Domain Validated TLS Server ECC CA 2025 | 83 d | |
| 6589 | tuwien.at | A+ | 100 | — | – | TLS1.3 | GEANT TLS RSA 1 | 92 d | |
| 6590 | tv2.dk | A+ | 100 | — | – | TLS1.3 | GlobalSign Atlas R46 DV TLS CA 2026 Q3 | 138 d | |
| 6591 | tv2.no | A+ | 100 | — | – | TLS1.3 | Sectigo Public Server Authentication CA DV R36 | 155 d | |
| 6592 | tv4.se | A+ | 100 | — | – | TLS1.3 | Amazon RSA 2048 M04 | 170 d | |
| 6593 | tvbs.com.tw | A+ | 100 | — | – | TLS1.3 | Amazon RSA 2048 M04 | 99 d | |
| 6594 | tvn24.pl | A+ | 100 | — | – | TLS1.3 | Amazon RSA 2048 M01 | 129 d | |
| 6595 | tvnz.co.nz | A+ | 100 | — | – | TLS1.3 | Amazon RSA 2048 M04 | 88 d | |
| 6596 | tweedekamer.nl | A+ | 100 | — | – | TLS1.3 | DigiCert G2 TLS EU RSA4096 SHA384 2022 CA1 | 125 d | |
| 6597 | twitch.tv | A+ | 100 | – | TLS1.3 | GlobalSign Atlas R46 DV TLS CA 2026 Q3 | 157 d | ||
| 6598 | twitlonger.com | A+ | 100 | — | – | TLS1.3 | Let's Encrypt | 81 d | |
| 6599 | twitpic.com | A+ | 100 | — | – | TLS1.3 | Let's Encrypt | 59 d | |
| 6600 | twitter.com | A+ | 100 | TLS1.3 | Let's Encrypt | 51 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.