CertH certH

SSL Grade Leaderboard: Top 100 Websites

Scanned from 20,000 top global websites · Updated 2026-11-08

12,269Domains
32%A+ share (3944)
94.8Avg score
↑ 111Improved this month
#DomainGradeScore30d trendΔTLSIssuerHSTSExpires
11651wtlbaby.com.cnD65—–TLS1.3——3216 d
11652xrea.comD65—–TLS1.3——
11653xs4all.nlD65—–TLS1.3——
11654yale.eduD65—–TLS1.3Let's Encrypt84 d
11655yizunzhuangshi.comD65—–TLS1.3GoGetSSL RSA DV CA—57 d
11656yourdomain.comD65—–TLS1.3GoDaddy TLS Intermediate CA DV - R1v1—143 d
11657youtube-nocookie.comD65TLS1.3Google Trust Services—52 d
11658yunshangyisheng.cnD65—–TLS1.3Encryption Everywhere DV TLS CA - G2—73 d
11659zcfw2020.cnD65—–TLS1.3TrustAsia DV TLS RSA CA 2024—38 d
11660zengyuan.orgD65—–TLS1.3——3561 d
11661zlib.netD65—–TLS1.3——
11662znaki.fmD65—–TLS1.3——
11663huawei.comD64—–TLS1.2Actalis Organization Validated TLS Server RSA CA 2025—19 d
11664ucr.ac.crD64—–TLS1.2Go Daddy Secure Certificate Authority - G2—20 d
116659to5mac.comD63—–TLS1.3——
11666aanda.orgD63—–TLS1.3———
11667addyosmani.comD63—–TLS1.3——
11668albawaba.comD63—–TLS1.3Let's Encrypt—75 d
11669alitalia.comD63—–TLS1.3———
11670allafrica.comD63—–TLS1.3———
11671angular.ioD63—–TLS1.3———
11672anotepad.comD63—–TLS1.3——
11673answersingenesis.orgD63—–TLS1.3———
11674antiwar.comD63—–TLS1.3———
11675ara.catD63—–TLS1.3———
11676archive-it.orgD63—–TLS1.3———
11677asuscomm.comD63–TLS1.3Sectigo Public Server Authentication CA OV R36—37 d
11678bankofengland.co.ukD63—–TLS1.3Entrust OV TLS Issuing RSA CA 2—142 d
11679bjahy.cnD63—–TLS1.3Let's Encrypt—35 d
11680blueorigin.comD63—–TLS1.3———
11681boardhost.comD63—–TLS1.3———
11682businessinsider.com.auD63—–TLS1.3Let's Encrypt—31 d
11683c2.comD63—–TLS1.3———
11684catb.orgD63—–TLS1.3Let's Encrypt—39 d
11685cci.frD63—–TLS1.3Let's Encrypt—45 d
11686chalmers.seD63—–TLS1.3——
11687chem17.comD63—–TLS1.3——
11688chinahighsoft.comD63—–TLS1.3Let's Encrypt—62 d
11689chomsky.infoD63—–TLS1.3———
11690chronoengine.comD63—–TLS1.3Sectigo Public Server Authentication CA DV R36—36 d
11691comedycentral.comD63—–TLS1.3———
11692commondreams.orgD63—–TLS1.3———
11693cplusplus.comD63—–TLS1.3———
11694dedecms.comD63—–TLS1.3———
11695ebay.frD63—–TLS1.3———
11696ebay.ieD63—–TLS1.3———
11697ebay.itD63—–TLS1.3———
11698ebsco.comD63—–TLS1.3———
11699eiu.eduD63—–TLS1.3———
11700eldiario.esD63—–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.