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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
10351authorstream.comA93—–TLS1.2GoDaddy TLS Intermediate CA DV - R1v1—102 d
10352awwwards.comA93—–TLS1.2Go Daddy Secure Certificate Authority - G290 d
10353babylon.comA93—–TLS1.2GoDaddy TLS Intermediate CA DV - R1v1—179 d
10354baixing.comA93—–TLS1.2sslTrus RSA OV SSL CA 2—158 d
10355bankofcanada.caA93—–TLS1.2Sectigo Public Server Authentication CA OV R36—77 d
10356bcove.meA93—–TLS1.2GoDaddy TLS Intermediate CA DV - R1v1—109 d
10357belden.comA93—–TLS1.2Let's Encrypt—37 d
10358bendibao.comA93—–TLS1.2WoTrus RSA DV SSL CA 2—96 d
10359betandplaycasino.ioA93——TLS1.2Let's Encrypt—29 d
10360bigmir.netA93—–TLS1.2Let's Encrypt—57 d
10361bildungsserver.deA93——TLS1.2Let's Encrypt—9 d
10362bilkent.edu.trA93—–TLS1.2Let's Encrypt—81 d
10363bitrix24.siteA93—–TLS1.2GoDaddy TLS Intermediate CA DV - R1v1—119 d
10364bls.govA93—–TLS1.2Entrust OV TLS Issuing RSA CA 2135 d
10365bt.cnA93—–TLS1.2sslTrus RSA OV SSL CA 2—109 d
10366bu.eduA93—–TLS1.2Sectigo Public Server Authentication CA EV R36—102 d
10367callupcontact.comA93—–TLS1.2GoDaddy TLS Intermediate CA DV - R1v1—126 d
10368canada.caA93—–TLS1.2Entrust OV TLS Issuing RSA CA 299 d
10369cbre.comA93—–TLS1.2Sectigo Public Server Authentication CA OV R36—168 d
10370cccb.orgA93—–TLS1.2GoDaddy TLS Intermediate CA DV - R1v1—138 d
10371cctv.cnA93—–TLS1.2GlobalSign GCC R46 OV TLS CA 2025—181 d
10372cctv.comA93—–TLS1.2GlobalSign GCC R46 OV TLS CA 2025—181 d
10373chambermaster.comA93—–TLS1.2GoDaddy TLS Intermediate CA DV - R1v1—121 d
10374chaosdorf.deA93—–TLS1.2Let's Encrypt83 d
10375chessdatabase.scienceA93—–TLS1.2Let's Encrypt—31 d
10376chinabyte.comA93—–TLS1.2sslTrus RSA DV SSL CA 2—83 d
10377chinadaily.com.cnA93—–TLS1.2WoTrus RSA OV SSL CA 2—97 d
10378cincinnatichildrens.orgA93—–TLS1.2Entrust DV TLS Issuing RSA CA 2—123 d
10379clemson.eduA93—–TLS1.2InCommon RSA Server CA 2—153 d
10380cli.imA93—–TLS1.2GeoTrust G2 TLS CN RSA4096 SHA256 2022 CA1—67 d
10381clickn.co.krA93—–TLS1.2Sectigo Public Server Authentication CA DV R36—173 d
10382climate.govA93—–TLS1.2Let's Encrypt69 d
10383cloudflare-protect.netA93——TLS1.2Let's Encrypt—11 d
10384cnews.ruA93—–TLS1.2Let's Encrypt27 d
10385colby.eduA93——TLS1.2InCommon Intermediate CA - OVG2C—61 d
10386coldwellbankerhomes.comA93—–TLS1.2Corporation Service Company RSA DV SSL CA 2127 d
10387colgate.comA93—–TLS1.2Let's Encrypt—40 d
10388copyright.comA93—–TLS1.2GoDaddy TLS Intermediate CA DV - R1v1—80 d
10389coremail.cnA93—–TLS1.2GoDaddy TLS Intermediate CA DV - R1v1—150 d
10390cornell.eduA93—–TLS1.2InCommon RSA OV SSL CA 342 d
10391creditmutuel.frA93—–TLS1.2GlobalSign GCC R3 EV TLS CA 202569 d
10392crfb.orgA93—–TLS1.2Let's Encrypt—37 d
10393cri.cnA93—–TLS1.2XinChaCha Trust OV CA—81 d
10394csus.eduA93—–TLS1.2InCommon RSA OV SSL CA 3—64 d
10395ct.govA93—–TLS1.2Sectigo Public Server Authentication CA OV R36—161 d
10396ctinsider.comA93—–TLS1.2Let's Encrypt—37 d
10397cuny.eduA93—–TLS1.2Sectigo Public Server Authentication CA OV R36—115 d
10398dartmouth.eduA93—–TLS1.2InCommon RSA OV SSL CA 3—48 d
10399day2up.comA93—–TLS1.2WoTrus RSA DV SSL CA 2—151 d
10400dayoo.comA93—–TLS1.2Sectigo Public Server Authentication CA DV R36154 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.