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
1,295,000
51%
2
AWS Certificate Manager
613,000
24%
3
DigiCert
566,000
22%
4
Thawte
50,900
2%
5
Let's Encrypt
5,400
0.2%
6
Identrust
400
0.02%
7
Entrust
130
0.01%

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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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