SSL Certificate Authorities Market Share & Usage Statistics (2026)
GlobalSign runs on 161,355 live websites, 79.2% of the 203,675 sites we detect using SSL certificate authorities. Below, all 16 tools we detect in this category, ranked by live websites, with market share and 30-day adoption momentum.
Data updated Aug 19, 2026
- #1
Let's Encrypt
Free, automated, and open certificate authority run by ISRG.
Customers7,662,374Top CountryUnited States
SSL/TLS Certificates Market Data
Adoption and 30-day momentum across 16 ssl/tls certificates technologies, measured from our live detection crawl.
Biggest Movers
Market Share
GlobalSign79.22%- SSwissSign4.8%
- GGoDaddy Site Seal3.82%
- QQuoVadis3.38%
- AActalis1.96%
- SSectigo TrustLogo1.5%
- …Others5.3%
SSL/TLS Certificates
FAQ.
What is SSL/TLS Certificates software?
SSL/TLS Certificates covers the tools a site can load or configure to handle this part of its stack. We detect one of the 16 ssl/tls certificates tools in this category on 203,675 live sites. A detection means we found the technology on the site, which is not the same as a paid account.
What are the most popular ssl/tls certificates platforms?
Across 203,675 detected sites, the most widely found ssl/tls certificates tools are: GlobalSign (79.22% share, 161,355 sites), SwissSign (4.8% share, 9,783 sites), GoDaddy Site Seal (3.82% share, 7,789 sites). Others we see regularly include QuoVadis and Actalis.
Which ssl/tls certificates tool has the largest market share?
GlobalSign is the most widely detected ssl/tls certificates tool at 79.22% share, on 161,355 sites. The largest share of those sites belongs to various companies, and to businesses in the 1-10 employee band.
Which industries use ssl/tls certificates software the most?
The industries with the most detected sites in this category are Construction, Business Consulting and Services, Retail, IT Services and IT Consulting, Advertising Services. Industry mix follows where these tools get installed, so a category carried by website builders or agency templates will lean toward the verticals those platforms serve rather than the vendor's target buyer.
Which countries have the highest adoption of ssl/tls certificates tools?
We detect the most ssl/tls certificates sites in United States, United Kingdom, Brazil, France, Netherlands. Country here is the company's registered location in our enriched data rather than where the site is served from, so read it as a ranking of markets rather than a measure of any single one.
How do I choose the right ssl/tls certificates platform?
Start from your own size, industry and primary use case rather than from share. GlobalSign, SwissSign and GoDaddy Site Seal are the three we detect most often in this category, which tells you what is common, not what fits you. Compare their integrations, pricing tiers and support commitments against the workflow you actually run, and check each vendor's own documentation for current capabilities.
How many companies use ssl/tls certificates software?
TechnologyChecker.io detects ssl/tls certificates tools on 203,675 live sites. That is a count of sites carrying the technology, not a count of paying customers, and a site running two tools in this category is counted under each. We crawl 2 billion+ URLs across 29.9M live business domains each sweep.
What is the source of this data?
TechnologyChecker.io's web crawling and technology detection platform. We've logged 2.12 billion total detections over 20+ years, covering 40,000+ technologies across the 29.9M live business domains we successfully crawl each sweep. Detection methods include JavaScript analysis, HTTP headers, HTML patterns, DNS records, and certificate transparency logs.