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Top United States Websites SSL Security Ranking (2026) — Best Sites by Grade

Scanned from 20,000 top global websites · Updated 2026-11-03

12,267Domains
21%A+ share (2547)
94.1Avg score
↑ 30Improved this month
#DomainGradeScore30d trendΔTLSIssuerHSTSExpires
1bestbuy.comA100——TLS1.3DigiCert Global G3 TLS ECC SHA384 2020 CA1—101 d
2cbsnews.comA100——TLS1.3Sectigo Public Server Authentication CA OV R36—93 d
3cnn.comA100–TLS1.3GlobalSign Atlas E46 OV TLS CA 2026 Q3—138 d
4foxnews.comA100——TLS1.3Let's Encrypt24 d
5hulu.comA100——TLS1.3COMODO RSA Organization Validation Secure Server CA—38 d
6intuit.comA100——TLS1.3DigiCert Global G2 TLS RSA SHA256 2020 CA1—4 d
7office.comA100TLS1.3Microsoft TLS G2 RSA CA OCSP 04—79 d
8steampowered.comA100——TLS1.3Let's Encrypt—0 d
9vanguard.comA100——TLS1.3Let's Encrypt—6 d
10walgreens.comA100——TLS1.3DigiCert Global G3 TLS ECC SHA384 2020 CA1—55 d
11xiumi.usA100——TLS1.3DNSPod RSA DV—0 d
12adobe.comA+100–TLS1.3DigiCert Global G3 TLS ECC SHA384 2020 CA163 d
13amazon.comA+100TLS1.3GeoTrust TLS RSA CA G1154 d
14americanexpress.comA+100——TLS1.3DigiCert Global G2 TLS RSA SHA256 2020 CA1142 d
15aol.comA+100——TLS1.3Amazon RSA 2048 M0137 d
16apple.comA+100–TLS1.3Apple Public EV Server ECC CA 1 - G150 d
17capitalone.comA+100——TLS1.3DigiCert EV RSA CA G252 d
18coursera.orgA+100——TLS1.3Amazon RSA 2048 M04126 d
19cvs.comA+100——TLS1.3DigiCert Global G2 TLS RSA SHA256 2020 CA1137 d
20ea.comA+100——TLS1.3DigiCert Global G2 TLS RSA SHA256 2020 CA153 d
21edx.orgA+100——TLS1.3Amazon RSA 2048 M0434 d
22epicgames.comA+100——TLS1.3Amazon RSA 2048 M040 d
23fidelity.comA+100——TLS1.3DigiCert Global G2 TLS RSA SHA256 2020 CA136 d
24github.comA+100TLS1.3Sectigo Public Server Authentication CA DV E3686 d
25healthline.comA+100——TLS1.3Amazon RSA 2048 M04123 d
26icloud.comA+100——TLS1.3Apple Public Server ECC CA 1 - G19 d
27ihmc.usA+100——TLS1.3Starfield TLS Intermediate CA DV - R1v131 d
28mastercard.usA+100——TLS1.3DigiCert Global G2 TLS RSA SHA256 2020 CA199 d
29netlify.comA+100——TLS1.3DigiCert Global G2 TLS RSA SHA256 2020 CA195 d
30nytimes.comA+100–TLS1.3Thawte TLS RSA CA G1137 d
31paypal.comA+100TLS1.3DigiCert Global G2 TLS RSA SHA256 2020 CA1159 d
32pinterest.comA+100–TLS1.3DigiCert Global G2 TLS RSA SHA256 2020 CA1116 d
33reddit.comA+100TLS1.3DigiCert Global G2 TLS RSA SHA256 2020 CA1106 d
34squarespace.comA+100——TLS1.3DigiCert Global G2 TLS RSA SHA256 2020 CA1121 d
35stripe.comA+100–TLS1.3DigiCert G5 TLS ECC SHA384 2021 CA1188 d
36target.comA+100——TLS1.3GlobalSign Atlas R46 OV TLS CA 2026 Q3128 d
37tiktok.comA+100–TLS1.3RapidSSL TLS ECC CA G131 d
38twitch.tvA+100–TLS1.3GlobalSign Atlas R46 DV TLS CA 2026 Q3161 d
39vercel.comA+100——TLS1.3Let's Encrypt0 d
40walmart.comA+100——TLS1.3GlobalSign GCC E46 OV TLS CA 2025100 d
41wellsfargo.comA+100——TLS1.3Wells Fargo Public Trust Certification Authority 01 G251 d
42x.comA+100TLS1.3Let's Encrypt55 d
43yahoo.comA+100–TLS1.3DigiCert Global G2 TLS RSA SHA256 2020 CA158 d
44aldi.usA98——TLS1.3Let's Encrypt—0 d
45ebay.usA98——TLS1.3Sectigo Public Server Authentication CA OV R40—32 d
46geni.usA98——TLS1.3Let's Encrypt—25 d
47microsoft.comA98TLS1.3Microsoft TLS G2 RSA CA OCSP 04—88 d
48nautil.usA98——TLS1.3Let's Encrypt—33 d
49them.usA98——TLS1.3Let's Encrypt—0 d
50ebay.comA+98–TLS1.3Sectigo Public Server Authentication CA OV R40171 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 weighted 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.

SSL security among United States websites

This board ranks the Top 100 websites in United States (generic TLDs attributed by company HQ) by daily TLS health score.