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
11401campaign-archive1.comD65—–TLS1.3DigiCert Global G2 TLS RSA SHA256 2020 CA1—164 d
11402campaign-archive2.comD65—–TLS1.3DigiCert Global G2 TLS RSA SHA256 2020 CA1—164 d
11403canada.comD65—–TLS1.3———
11404canoe.comD65—–TLS1.3——
11405carecredit.comD65—–TLS1.3——
11406ccleaner.comD65—–TLS1.3———
11407chng.itD65—–TLS1.3———
11408clipdrop.coD65—–TLS1.3——
11409club-internet.frD65—–TLS1.3Thawte TLS RSA CA G1—104 d
11410clutchpoints.comD65—–TLS1.3——
11411cnpd.ptD65—–TLS1.3Sectigo Public Server Authentication CA OV R36—59 d
11412constantcontactpages.comD65—–TLS1.3GlobalSign Atlas R3 OV TLS CA 2025 Q4—34 d
11413creativthemes.comD65—–TLS1.3———
11414credit-suisse.comD65—–TLS1.3DigiCert Global G2 TLS RSA SHA256 2020 CA1—130 d
11415daimler.comD65—–TLS1.3Amazon RSA 2048 M01—104 d
11416dakar.comD65—–TLS1.3Sectigo Public Server Authentication CA DV R36—173 d
11417dclyy.cnD65—–TLS1.3Let's Encrypt—31 d
11418dclyy.comD65—–TLS1.3Let's Encrypt—31 d
11419debian.netD65—–TLS1.3Let's Encrypt—49 d
11420defra.gov.ukD65—–TLS1.3GlobalSign RSA OV SSL CA 2018—51 d
11421dentsu.comD65—–TLS1.3——
11422dfn.deD65—–TLS1.3———
11423dglikvalve.comD65—–TLS1.3Encryption Everywhere DV TLS CA - G2—83 d
11424dickinson.eduD65—–TLS1.3DigiCert Global G2 TLS RSA SHA256 2020 CA1—102 d
11425direct.gov.ukD65—–TLS1.3GlobalSign RSA OV SSL CA 2018—51 d
11426dismall.comD65—–TLS1.3LiteSSL RSA CA 2025—63 d
11427django-rest-framework.orgD65—–TLS1.3Sectigo Public Server Authentication CA DV R36—59 d
11428dm.deD65—–TLS1.3——
11429dmoz.orgD65—–TLS1.3DigiCert Global G2 TLS RSA SHA256 2020 CA1—67 d
11430donau-uni.ac.atD65—–TLS1.3GEANT TLS RSA 1—130 d
11431doodles.googleD65—–TLS1.3———
11432doorkeeper.jpD65—–TLS1.3——
11433dormakaba.comD65—–TLS1.3——
11434drudgereport.comD65—–TLS1.3———
11435drugfree.orgD65—–TLS1.3———
11436dw-world.deD65—–TLS1.3Thawte TLS RSA CA G1—133 d
11437dw.deD65—–TLS1.3Thawte TLS RSA CA G1—133 d
11438dwy361.comD65—–TLS1.3Encryption Everywhere DV TLS CA - G2—171 d
11439dyhairong.cnD65—–TLS1.3——3040 d
11440e-stat.go.jpD65—–TLS1.3GeoTrust TLS RSA CA G1—119 d
11441eacdn.comD65—–TLS1.3DigiCert Global G2 TLS RSA SHA256 2020 CA1—111 d
11442eifan.cnD65—–TLS1.3——2716 d
11443elte.huD65—–TLS1.3———
11444emiogp.comD65—–TLS1.3SSL.com TLS Issuing RSA CA R1—186 d
11445enea.itD65—–TLS1.3GEANT TLS RSA 1—95 d
11446ernet.inD65—–TLS1.3———
11447excalidraw.comD65—–TLS1.3——
11448exclaim.caD65—–TLS1.3——
11449fanart-central.netD65—–TLS1.3Let's Encrypt—71 d
11450fco.gov.ukD65—–TLS1.3GlobalSign RSA OV SSL CA 2018—51 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.