CDN Used by UK B2C Companies: Market Share (2026)
Detected CDN market share across 25,114 of 84,728 trading UK B2C companies, with Cloudflare present at 22,414 companies and 89.2% of the detected cohort.
Among 84,728 trading UK B2C companies, 25,114 have a detectable CDN. The detected market is concentrated: Cloudflare appears at 22,414 companies, or 89.2% of detected use, while Amazon CloudFront appears at 2,620 companies, or 10.4%.
Read more
Beyond the two largest systems, Akamai is present at 250 companies (1.0%), Bunny at 202 (0.8%), Fastly at 131 (0.5%), ShortPixel at 121 (0.5%), Sirv at 80 (0.3%) and ImageEngine at 56 (0.2%). A further 4 systems cover 38 companies between them.
Cloudflare has the largest share in all three employee bands: 90.6% among 16,118 companies under 10 employees, 86.3% among 7,969 companies with 10–50 employees, and 90.9% among 1,027 companies over 50 employees.
25,114
B2C with detected CDN
Of 84,728 UK B2C
29.6%
Detection rate
2026
12
Systems detected
In this category
89.2%
Leader share
Cloudflare
UK B2C CDN market share
Share of the 25,114 UK B2C with a detectable system. As of June 2026.
CDN compared
| System | UK B2C | Share | Median headcount | London share | Typical profile |
|---|---|---|---|---|---|
| Cloudflare | 22,414 | 89.2% | 7 | 19.6% | Small B2C firms, default CDN |
| Amazon CloudFront | 2,620 | 10.4% | 8 | 21.8% | Small B2C firms, second option |
| Akamai | 250 | 1% | 5 | 26% | Small firms, London-tilted minority |
| Bunny | 202 | 0.8% | 8 | 12.4% | Small firms, lower London share |
| Fastly | 131 | 0.5% | 7 | 32.1% | Small firms, London-tilted minority |
| ShortPixel | 121 | 0.5% | 8 | 15.7% | Small firms, low-share minority |
| Sirv | 80 | 0.3% | 9 | 15% | Small firms, low-share minority |
| ImageEngine | 56 | 0.2% | 8 | 3.6% | Small firms, outside-London skew |
| Uploadcare | 40 | 0.2% | — | — | Buy these companies as a spreadsheet → |
| Section.io | 32 | 0.1% | — | — | Buy these companies as a spreadsheet → |
| Cloudimage | 24 | 0.1% | — | — | Buy these companies as a spreadsheet → |
| Filestack | 21 | 0.1% | — | — | Buy these companies as a spreadsheet → |
Systems detected below the page threshold appear with counts only; their full lists are available in the Firmbase app.
Market leader by size
The leading CDN system shifts with company size: among UK B2C with under 10 employees, Cloudflare leads at 90.6% of the 16,118 with a detectable system; among UK B2C with 10–50 employees, Cloudflare leads at 86.3% of the 7,969 with a detectable system; and among UK B2C with over 50 employees, Cloudflare leads at 90.9% of the 1,027 with a detectable system.
Under 10 employees
90.6% of band
Under 10 employees contains 16,118 detected companies, with Cloudflare accounting for 90.6%. The remainder is split across Amazon CloudFront and the smaller CDN systems.
10–50 employees
86.3% of band
10–50 employees contains 7,969 companies. Cloudflare still has the largest share at 86.3%, though its share is lower here than in the other two employee bands.
Over 50 employees
90.9% of band
Over 50 employees contains 1,027 companies. Cloudflare has 90.9%, the highest share of the three bands, so larger UK B2C companies in scope do not visibly shift away from it.
How CDN usage is detected
Company data
Detected companies are joined to UK Companies House records and XBRL accounts data. Revenue and headcount figures come from the most recent filed accounts; where the company has not filed, values are estimated using a model trained on filed history and peer benchmarks and are labelled as estimates.
Detection
Firmbase crawls the public website of actively-trading UK companies and fingerprints the technologies present: tracking scripts, embedded forms, chat widgets, CMS markers and similar signatures. A company is included in this list when one or more of the technology's signatures are found on its site; closely-related variants of the same product are grouped under one name. Detection covers what is visible on the public web — a company using the technology purely internally, with no website footprint, will not appear. Counts are therefore a conservative floor, not a ceiling.
Freshness
Websites are re-crawled on a rolling basis and the underlying company data is refreshed from Companies House continuously; filings appear within days of submission. The list and its statistics are regenerated when the detected cohort moves meaningfully. You can see the last-updated timestamp near the top of the page.
All product names are trademarks of their respective owners. Firmbase is not affiliated with, sponsored by, or endorsed by any trademark owner.
UK B2C by CDN
Related directories
Frequently asked questions
What is the most-used CDN among UK B2C companies?
How many UK B2C companies have a detectable CDN?
What is a CDN?
How is CDN usage detected?
Which has more UK B2C companies, Cloudflare or Amazon CloudFront?
What is the best CDN for UK B2C companies?
Buy all 25,114 companies as a spreadsheet.
One Excel/CSV file with company details, websites and key data — yours to download and use.