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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
8301ircam.frA+98—–TLS1.3Let's Encrypt63 d
8302it.wikipedia.orgA+98—–TLS1.3Let's Encrypt57 d
8303ita-airways.comA+98—–TLS1.3Let's Encrypt77 d
8304itb.ac.idA+98—–TLS1.3SSL.com TLS Issuing RSA CA R1148 d
8305iwkoeln.deA+98—–TLS1.3Let's Encrypt60 d
8306jeito.nlA+98—–TLS1.3Let's Encrypt61 d
8307jetpack.comA+98—–TLS1.3Let's Encrypt82 d
8308joinpeertube.orgA+98—–TLS1.3Let's Encrypt59 d
8309joypixels.comA+98—–TLS1.3Let's Encrypt81 d
8310jpc.deA+98—–TLS1.3Let's Encrypt36 d
8311jpost.comA+98—–TLS1.3GoDaddy TLS Intermediate CA DV - R1v163 d
8312jvns.caA+98——TLS1.3Let's Encrypt6 d
8313kbv.deA+98—–TLS1.3Let's Encrypt65 d
8314kcl.ac.ukA+98—–TLS1.3Sectigo Public Server Authentication CA OV R3648 d
8315kenpai.comA+98—–TLS1.3Certum DV TLS G2 R39 CA132 d
8316keybase.ioA+98—–TLS1.3Sectigo Public Server Authentication CA DV R3640 d
8317kidshealth.orgA+98—–TLS1.3Let's Encrypt39 d
8318kku.ac.thA+98—–TLS1.3Let's Encrypt71 d
8319kodak.comA+98—–TLS1.3Entrust OV TLS Issuing RSA CA 270 d
8320lasexta.comA+98—–TLS1.3Let's Encrypt48 d
8321later.comA+98——TLS1.3Let's Encrypt0 d
8322ldoceonline.comA+98—–TLS1.3Sectigo Public Server Authentication CA OV R3699 d
8323letsencrypt.orgA+98—–TLS1.3Let's Encrypt86 d
8324lfpress.comA+98—–TLS1.3Let's Encrypt41 d
8325libsdl.orgA+98—–TLS1.3Let's Encrypt75 d
8326lidl.deA+98—–TLS1.3SwissSign RSA TLS OV ICA 2022 - 181 d
8327lifewire.comA+98—–TLS1.3Let's Encrypt50 d
8328lighttpd.netA+98—–TLS1.3Let's Encrypt32 d
8329limesurvey.orgA+98—–TLS1.3Let's Encrypt74 d
8330lindependant.frA+98—–TLS1.3Let's Encrypt65 d
8331liverpool.ac.ukA+98—–TLS1.3Sectigo Public Server Authentication CA OV R36134 d
8332lmu.deA+98—–TLS1.3Let's Encrypt58 d
8333lobste.rsA+98—–TLS1.3Let's Encrypt51 d
8334loc.govA+98TLS1.3Let's Encrypt87 d
8335localharvest.orgA+98—–TLS1.3Let's Encrypt77 d
8336logos.comA+98—–TLS1.3Let's Encrypt86 d
8337london.ac.ukA+98—–TLS1.3Sectigo Public Server Authentication CA OV R36117 d
8338londonmet.ac.ukA+98—–TLS1.3Sectigo Public Server Authentication CA DV R36167 d
8339longnow.orgA+98—–TLS1.3Let's Encrypt32 d
8340loopia.comA+98—–TLS1.3Sectigo Public Server Authentication CA OV R36155 d
8341loopia.seA+98—–TLS1.3Sectigo Public Server Authentication CA OV R3685 d
8342lopinion.frA+98—–TLS1.3Let's Encrypt38 d
8343loudwire.comA+98—–TLS1.3Let's Encrypt80 d
8344lowes.comA+98—–TLS1.3Sectigo Public Server Authentication CA OV E36119 d
8345lshtm.ac.ukA+98—–TLS1.3Sectigo Public Server Authentication CA OV R3632 d
8346lucid.coA+98—–TLS1.3Let's Encrypt40 d
8347macstories.netA+98—–TLS1.3Let's Encrypt50 d
8348macworld.comA+98—–TLS1.3Let's Encrypt74 d
8349mad-sea.comA+98—–TLS1.3Xcc Trust DV TLS G3 R31 CA184 d
8350mailpoet.comA+98—–TLS1.3Let's Encrypt66 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.