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 |
|---|---|---|---|---|---|---|---|---|---|
| 7201 | cofc.edu | A | 98 | — | – | TLS1.3 | InCommon Intermediate CA - OVG2C | — | 149 d |
| 7202 | coi.cz | A | 98 | — | – | TLS1.3 | Let's Encrypt | — | 45 d |
| 7203 | colbertnation.com | A | 98 | — | – | TLS1.3 | Let's Encrypt | — | 36 d |
| 7204 | communecter.org | A | 98 | — | – | TLS1.3 | Let's Encrypt | — | 73 d |
| 7205 | conecti.me | A | 98 | — | – | TLS1.3 | Let's Encrypt | — | 38 d |
| 7206 | confex.com | A | 98 | — | – | TLS1.3 | Let's Encrypt | — | 58 d |
| 7207 | conicet.gov.ar | A | 98 | — | – | TLS1.3 | Sectigo Public Server Authentication CA OV R36 | — | 128 d |
| 7208 | connect.qq.com | A | 98 | — | – | TLS1.3 | GlobalSign Atlas R3 OV TLS CA 2026 Q2 | — | 75 d |
| 7209 | consequence.net | A | 98 | — | – | TLS1.3 | Let's Encrypt | 33 d | |
| 7210 | consequenceofsound.net | A | 98 | — | – | TLS1.3 | Let's Encrypt | — | 82 d |
| 7211 | cookiedatabase.org | A | 98 | TLS1.3 | Let's Encrypt | — | 85 d | ||
| 7212 | copernicus.org | A | 98 | — | – | TLS1.3 | Let's Encrypt | — | 79 d |
| 7213 | corporateeurope.org | A | 98 | — | – | TLS1.3 | Let's Encrypt | — | 41 d |
| 7214 | cosentino.com | A | 98 | — | – | TLS1.3 | Sectigo Public Server Authentication CA DV R36 | — | 175 d |
| 7215 | cosmosmagazine.com | A | 98 | — | – | TLS1.3 | Let's Encrypt | — | 68 d |
| 7216 | cossa.ru | A | 98 | — | – | TLS1.3 | Let's Encrypt | — | 66 d |
| 7217 | cpuid.com | A | 98 | — | – | TLS1.3 | Let's Encrypt | — | 60 d |
| 7218 | cqu.edu.cn | A | 98 | — | – | TLS1.3 | cnTrus RSA DV SSL CA 2 | — | 187 d |
| 7219 | crikey.com.au | A | 98 | — | – | TLS1.3 | Let's Encrypt | — | 47 d |
| 7220 | crucial.com | A | 98 | — | – | TLS1.3 | Let's Encrypt | — | 46 d |
| 7221 | crummy.com | A | 98 | — | – | TLS1.3 | Let's Encrypt | — | 74 d |
| 7222 | crunchbase.com | A | 98 | — | – | TLS1.3 | Let's Encrypt | — | 64 d |
| 7223 | cryptpad.fr | A | 98 | — | – | TLS1.3 | Let's Encrypt | — | 37 d |
| 7224 | crystalinks.com | A | 98 | — | – | TLS1.3 | Sectigo Public Server Authentication CA DV R36 | — | 71 d |
| 7225 | cspinet.org | A | 98 | — | – | TLS1.3 | Let's Encrypt | — | 40 d |
| 7226 | csun.edu | A | 98 | — | – | TLS1.3 | InCommon RSA Server CA 2 | 136 d | |
| 7227 | cummins.com | A | 98 | — | – | TLS1.3 | Entrust OV TLS Issuing RSA CA 2 | — | 113 d |
| 7228 | dailydot.com | A | 98 | — | – | TLS1.3 | Let's Encrypt | — | 43 d |
| 7229 | dailykos.com | A | 98 | — | – | TLS1.3 | Let's Encrypt | — | 70 d |
| 7230 | dcloud.net.cn | A | 98 | — | – | TLS1.3 | RapidSSL TLS RSA CA G1 | — | 151 d |
| 7231 | de.tl | A | 98 | — | – | TLS1.3 | Let's Encrypt | — | 74 d |
| 7232 | deccanchronicle.com | A | 98 | — | – | TLS1.3 | Sectigo Public Server Authentication CA DV R36 | — | 71 d |
| 7233 | defector.com | A | 98 | — | – | TLS1.3 | Let's Encrypt | — | 64 d |
| 7234 | demilked.com | A | 98 | — | – | TLS1.3 | Let's Encrypt | — | 32 d |
| 7235 | democrats.org | A | 98 | — | – | TLS1.3 | Let's Encrypt | 67 d | |
| 7236 | denofgeek.com | A | 98 | — | – | TLS1.3 | Let's Encrypt | — | 66 d |
| 7237 | derwesten.de | A | 98 | — | – | TLS1.3 | Let's Encrypt | — | 62 d |
| 7238 | devpost.com | A | 98 | — | – | TLS1.3 | Let's Encrypt | — | 37 d |
| 7239 | dfa.ie | A | 98 | — | – | TLS1.3 | Let's Encrypt | — | 44 d |
| 7240 | diabetesjournals.org | A | 98 | — | – | TLS1.3 | Let's Encrypt | — | 51 d |
| 7241 | dict.cc | A | 98 | — | – | TLS1.3 | Let's Encrypt | — | 58 d |
| 7242 | digiday.com | A | 98 | — | – | TLS1.3 | Let's Encrypt | — | 53 d |
| 7243 | digitalguardian.com | A | 98 | — | – | TLS1.3 | Let's Encrypt | — | 64 d |
| 7244 | digitalocean.com | A | 98 | — | – | TLS1.3 | Let's Encrypt | — | 75 d |
| 7245 | disclaimer.de | A | 98 | — | – | TLS1.3 | Let's Encrypt | — | 52 d |
| 7246 | discovermagazine.com | A | 98 | — | – | TLS1.3 | Let's Encrypt | — | 64 d |
| 7247 | disqus.com | A | 98 | — | – | TLS1.3 | SSL.com TLS Issuing RSA CA R1 | 165 d | |
| 7248 | dmonster.kr | A | 98 | — | – | TLS1.3 | Let's Encrypt | — | 64 d |
| 7249 | dnaindia.com | A | 98 | — | – | TLS1.3 | Let's Encrypt | — | 70 d |
| 7250 | dns.com | A | 98 | — | – | TLS1.3 | Certum DV TLS G2 R39 CA | — | 126 d |
Track grade changes for your domains
Sign up free, watch your domains and get alerted the moment a grade drops.
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.