SSL/TLS certificate authorities

These are the top SSL/TLS certificate authorities technologies based on market share in 2026.

# Technology Websites tracked Market share
1
Sectigo
1,900,000
57%
2
AWS Certificate Manager
750,000
22%
3
DigiCert
640,000
19%
4
Thawte
65,000
2%
5
Let's Encrypt
7,900
0.2%
6
Identrust
400
0.01%
7
Entrust
160
0.00%

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Websites in United Kingdom

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Websites in United States

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Companies with emails and phone numbers

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Top 5,000 websites by traffic

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Websites with a .com domain

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5,000 low-traffic websites

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