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
11901odn.ne.jpD60——TLS1.2Cybertrust Japan SureServer CA G4—112 d
11902official.ecD60—–TLS1.2Amazon RSA 2048 M04—64 d
11903on.netD60—–TLS1.2DigiCert Global G2 TLS RSA SHA256 2020 CA1—134 d
11904ozemail.com.auD60—–TLS1.2DigiCert Global G2 TLS RSA SHA256 2020 CA1—134 d
11905phray.comD60—–TLS1.2Sectigo Public Server Authentication CA DV R36—39 d
11906pingan.comD60——TLS1.2———
11907piriform.comD60—–TLS1.2GlobalSign Atlas R46 DV TLS CA 2026 Q3—134 d
11908pku.edu.cnD60—–TLS1.2TrustAsia OV TLS RSA CA 2024—137 d
11909pr.gov.brD60—–TLS1.2Sectigo Public Server Authentication CA OV R36—55 d
11910providence.orgD60—–TLS1.2——
11911pthzwl.netD60—–TLS1.2Kubernetes Ingress Controller Fake Certificate—213 d
11912qimengdata.cnD60—–TLS1.2Encryption Everywhere DV TLS CA - G2—47 d
11913rasmussenreports.comD60—–TLS1.2———
11914rcog.org.ukD60—–TLS1.2——
11915regonline.comD60—–TLS1.2———
11916rodeointl.cnD60—–TLS1.2Let's Encrypt—54 d
11917rodeointl.comD60——TLS1.2Let's Encrypt—0 d
11918rodeointl.com.cnD60—–TLS1.2Let's Encrypt—54 d
11919rongn.cnD60—–TLS1.2RapidSSL TLS RSA CA G1—149 d
11920salsalabs.orgD60——TLS1.2Amazon RSA 2048 M04—119 d
11921sblo.jpD60—–TLS1.2JPRS DV RSA CA 2024 G1—112 d
11922science.orgD60—–TLS1.2——
11923sendgrid.netD60—–TLS1.2———
11924sh-huanghai.comD60—–TLS1.2Encryption Everywhere DV TLS CA - G2—91 d
11925shu.ac.ukD60—–TLS1.2———
11926sinopet-xm.orgD60—–TLS1.2RapidSSL TLS RSA CA G1—158 d
11927skycn.comD60—–TLS1.2GlobalSign RSA OV SSL CA 2018—77 d
11928skypixel.comD60—–TLS1.2Amazon RSA 2048 M04—102 d
11929smlyz.comD60—–TLS1.2———
11930squidoo.comD60——TLS1.2Amazon RSA 2048 M01—52 d
11931stability.aiD60—–TLS1.2——
11932sub.jpD60—–TLS1.2———
11933teacup.comD60—–TLS1.2———
11934teamhealth.com.cnD60—–TLS1.2———
11935teamusa.comD60—–TLS1.2——
11936tencent.comD60——TLS1.2GlobalSign Atlas R3 OV TLS CA 2026 Q2—47 d
11937the-village.ruD60—–TLS1.2———
11938thelazy.netD60——TLS1.2Kubernetes Ingress Controller Fake Certificate—142 d
11939thenationalnews.comD60—–TLS1.2——
11940tnt.comD60—–TLS1.2Sectigo Public Server Authentication CA OV R36—99 d
11941tooter.inD60—–TLS1.2——
11942totalwine.comD60—–TLS1.2——
11943trace-315.comD60—–TLS1.2CNSSL DV TLS G2 R36 CA—35 d
11944traderoad.netD60—–TLS1.2Encryption Everywhere DV TLS CA - G2—63 d
11945transer.comD60——TLS1.2hp-httpd-04—2717 d
11946uaic.roD60—–TLS1.2GEANT TLS ECC 1—91 d
11947uc3m.esD60—–TLS1.2———
11948ucp.ptD60—–TLS1.2——
11949uh.eduD60—–TLS1.2——
11950uit.noD60—–TLS1.2——
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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.