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SSL Grade Leaderboard: Top 100 Websites

Scanned from 20,000 top global websites · Updated 2026-11-07

12,269Domains
32%A+ share (3943)
94.8Avg score
↑ 114Improved this month
#DomainGradeScore30d trendΔTLSIssuerHSTSExpires
3951apachelounge.comA+100—–TLS1.3Let's Encrypt87 d
3952apachetoday.comA+100—–TLS1.3Let's Encrypt78 d
3953aparat.comA+100—–TLS1.3Certum DV TLS G2 R39 CA53 d
3954apec.frA+100—–TLS1.3DigiCert Global G2 TLS RSA SHA256 2020 CA1114 d
3955apify.comA+100—–TLS1.3Amazon RSA 2048 M0471 d
3956apkpure.comA+100—–TLS1.3Sectigo Public Server Authentication CA DV R36194 d
3957aplaceformom.comA+100—–TLS1.3Amazon RSA 2048 M04116 d
3958apnic.netA+100—–TLS1.3Let's Encrypt32 d
3959apotheken-umschau.deA+100—–TLS1.3Let's Encrypt42 d
3960app.comA+100—–TLS1.3Let's Encrypt54 d
3961app.linkA+100—–TLS1.3Amazon RSA 2048 M01106 d
3962appfolio.comA+100—–TLS1.3Amazon RSA 2048 M0472 d
3963apple.comA+100–TLS1.3Apple Public EV Server ECC CA 1 - G147 d
3964apple.com.cnA+100—–TLS1.3Apple Public Server ECC CA 1 - G181 d
3965apple.newsA+100—–TLS1.3Apple Public Server RSA CA 11 - G133 d
3966applebees.comA+100—–TLS1.3DigiCert Global G2 TLS RSA SHA256 2020 CA1108 d
3967applovin.comA+100—–TLS1.3Google Trust Services40 d
3968apps.apple.comA+100–TLS1.3Apple Public EV Server RSA CA 1 - G162 d
3969arbeiterkammer.atA+100—–TLS1.3RapidSSL TLS RSA CA G1170 d
3970arbeitsagentur.deA+100—–TLS1.3Sectigo Public Server Authentication CA OV E36155 d
3971arcelormittal.comA+100—–TLS1.3GeoTrust TLS RSA CA G195 d
3972arcep.frA+100—–TLS1.3GlobalSign RSA OV SSL CA 201857 d
3973arcgis.comA+100—–TLS1.3Amazon RSA 2048 M04150 d
3974archives.govA+100—–TLS1.3Amazon RSA 2048 M01160 d
3975ard.deA+100—–TLS1.3Google Trust Services75 d
3976ardmediathek.deA+100—–TLS1.3Google Trust Services76 d
3977ardsounds.deA+100—–TLS1.3Google Trust Services67 d
3978arduino.ccA+100—–TLS1.3Amazon RSA 2048 M01103 d
3979argos.co.ukA+100—–TLS1.3Sectigo Public Server Authentication CA OV R36169 d
3980argusleader.comA+100—–TLS1.3Let's Encrypt87 d
3981arin.netA+100—–TLS1.3DigiCert Global G2 TLS RSA SHA256 2020 CA1146 d
3982arkansas.comA+100—–TLS1.3Let's Encrypt50 d
3983army-technology.comA+100—–TLS1.3Let's Encrypt52 d
3984arsys.esA+100—–TLS1.3DigiCert QuoVadis G3 Qualified TLS RSA4096 SHA256 2023 CA1153 d
3985artificialanalysis.aiA+100—–TLS1.3Let's Encrypt74 d
3986artlebedev.ruA+100—–TLS1.3GlobalSign GCC R46 AlphaSSL CA 2025148 d
3987arts.govA+100—–TLS1.3Go Daddy Secure Certificate Authority - G229 d
3988ascd.orgA+100—–TLS1.3Amazon RSA 2048 M0494 d
3989ascii.jpA+100—–TLS1.3Amazon RSA 2048 M04102 d
3990asco.orgA+100—–TLS1.3Amazon RSA 2048 M01157 d
3991ase.roA+100—–TLS1.3GEANT TLS RSA 1125 d
3992asean.orgA+100—–TLS1.3Starfield TLS Intermediate CA DV - R1v168 d
3993asfinag.atA+100—–TLS1.3EUNETIC RSA Domain Validation Secure Server CA 4139 d
3994asiatimes.comA+100—–TLS1.3Google Trust Services53 d
3995asic.gov.auA+100—–TLS1.3Amazon RSA 2048 M04164 d
3996asics.comA+100—–TLS1.3Amazon RSA 2048 M01137 d
3997asml.comA+100—–TLS1.3DigiCert Global G2 TLS RSA SHA256 2020 CA1133 d
3998aston.ac.ukA+100—–TLS1.3Sectigo Public Server Authentication CA OV R3697 d
3999astonmartin.comA+100—–TLS1.3Starfield TLS Intermediate CA DV - R1v1177 d
4000astro.comA+100—–TLS1.3Sectigo Public Server Authentication CA EV R3658 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.