A side-by-side comparison of two ssl certificate authorities, based on the 842,065 SSL Authority sites tracked by Site Stats Database.
Last updated
| Metric | Cloudflare | GlobalSign |
|---|---|---|
| Websites | 888 | 5,990 |
| Market share | 0.11% | 0.71% |
| Share of top 10K sites | 0.19% | 1.7% |
| Share of top 100K sites |
|---|
| 0.12% |
| 0.97% |
| Rank | #13 | #7 |
|---|
| Median DR | 27 | 59 |
|---|
| Average DR | 31 | 55 |
|---|
| Median keywords | 832 | 856 |
|---|
| Median referring domains | 351 | 1,477 |
|---|
| Median domain age | 14 yrs | 22 yrs |
|---|
| Average domain age | 15 yrs | 21 yrs |
|---|
| Average monthly traffic | 121,412 | 309,580 |
|---|
| Combined monthly traffic | 107,814,215 | 1,854,385,824 |
|---|
A site runs one SSL certificate authority, so Cloudflare and GlobalSign are mutually exclusive.
Monthly snapshots of each segment, 2026-06 to 2026-07. Website counts move when our catalog grows; the share of tracked sites is normalized, so it only moves when real prevalence changes.
Websites
Share of tracked sites
Combined monthly traffic
888 websites · rank #13
Top industries
Top markets
5,990 websites · rank #7
Top industries
Top markets
GlobalSign is used by more websites in our catalog: 888 use Cloudflare and 5,990 use GlobalSign.
GlobalSign sites have the higher median Ahrefs Domain Rating (Cloudflare: 27, GlobalSign: 59).
Between 2026-06 and 2026-07, Cloudflare went from 0.12% to 0.10% of all tracked sites, while GlobalSign went from 0.85% to 0.68%. Cloudflare is gaining ground faster in our index.
No. A site runs a single SSL certificate authority, so Cloudflare and GlobalSign are mutually exclusive.
Adoption is counted from Site Stats Database's own crawl; Domain Rating comes from Ahrefs and traffic from DataForSEO. Figures reflect the sites we track and refresh at least monthly.
Citation
Site Stats Database. "Cloudflare vs GlobalSign." Site Stats Database, July 1, 2026. https://sitestatsdb.com/technologies/ssl-certificates/compare/cloudflare-vs-globalsign
Site Stats Database tracks 888 websites using Cloudflare and 5,990 using GlobalSign, each enriched with full monthly traffic history, authority, keywords, referring domains, and the complete detected tech stack. We detect every SSL certificate authority by crawling each site's HTML, response headers, and DNS; traffic and SEO metrics come from DataForSEO and Ahrefs. Everything refreshes at least monthly.
See plans & pricing| English |
| 84 |
| 109,462 |
| 20,061 |
| 30 yrs |
| 6,502,261 |
| Cloudflare |
| visa.com | English | 91 | 104,842 | 67,229 | 32 yrs | 6,433,458 | Cloudflare |
| nmaahc.si.edu | 91 | 63,346 | 27,403 | 34 yrs | 5,188,883 | Cloudflare |
| biologyonline.com | English | 72 | 206,401 | 11,428 | 27 yrs | 4,864,746 | Cloudflare |
| ocean.si.edu | English | 91 | 76,961 | 11,637 | 34 yrs | 4,206,621 | Cloudflare |
| 99restaurants.com | English | 55 | 29,878 | 2,297 | 28 yrs | 4,081,333 | Cloudflare |
| bestwordlist.com | English | 42 | 124,340 | 2,383 | 13 yrs | 3,733,167 | Cloudflare |
| americanhistory.si.edu | English | 91 | 150,962 | 35,692 | 34 yrs | 2,955,660 | Cloudflare |
| bryant.com | English | 75 | 52,483 | 2,766 | 29 yrs | 1,995,503 | Cloudflare |
| English |
| 93 |
| 3,887,532 |
| 716,813 |
| 36 yrs |
| 145,867,646 |
| GlobalSign |
| cnn.com | English | 93 | 3,578,724 | 1,035,782 | 32 yrs | 110,708,925 | GlobalSign |
| study.com | English | 85 | 4,953,237 | 123,063 | 30 yrs | 74,304,102 | GlobalSign |
| cars.com | 85 | 2,101,260 | 76,702 | 28 yrs | 44,939,914 | GlobalSign |
| aaa.com | English | 88 | 1,133,231 | 81,033 | 35 yrs | 41,041,293 | GlobalSign |
| ncaa.com | English | 84 | 450,724 | 61,708 | 28 yrs | 38,619,244 | GlobalSign |
| bbc.co.uk | English | 93 | 3,033,726 | 965,273 | 29 yrs | 31,381,634 | GlobalSign |
| samsclub.com | English | 82 | 1,233,117 | 51,918 | 30 yrs | 31,229,729 | GlobalSign |
| ford.com | English | 88 | 463,900 | 98,985 | 37 yrs | 26,031,294 | GlobalSign |