CDN Used by UK B2C: Market Share (2026)
Detected CDN use across 25,618 of 84,649 trading UK B2C companies, with Cloudflare appearing on 87.1% of detected companies.
Among 84,649 trading UK B2C companies, 25,618 have a detectable CDN. Cloudflare dominates that detected market at 87.1% (22,312 companies), ahead of Amazon CloudFront at 10.2% (2,606 companies) and Amazon S3 at 7.9% (2,030 companies).
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Size band does not change the first-place system. Cloudflare accounts for 88.5% of the 16,354 companies under 10 employees, 84.2% of the 8,199 companies with 10–50 employees, and 88.4% of the 1,065 companies over 50 employees.
The tail is narrow across the 11 detected systems. Akamai reaches 1.0% (259 companies), followed by Bunny at 0.8% (204 companies), Fastly at 0.5% (129 companies), ShortPixel at 0.5% (119 companies) and ImageEngine at 0.2% (56 companies), while 3 further systems cover 19 companies.
25,618
B2C with detected CDN
Of 84,649 UK B2C
30.3%
Detection rate
2026
11
Systems detected
In this category
87.1%
Leader share
Cloudflare
UK B2C CDN market share
Share of the 25,618 UK B2C with a detectable system. As of June 2026.
CDN compared
| System | UK B2C | Share | Median headcount | London share | Typical profile |
|---|---|---|---|---|---|
| Cloudflare | 22,312 | 87.1% | 7 | 19.6% | Small B2C firms, broad usage |
| Amazon CloudFront | 2,606 | 10.2% | 8 | 21.7% | Small B2C firms, secondary usage |
| Amazon S3 | 2,030 | 7.9% | 8 | 18.8% | Small B2C firms, storage-led CDN |
| Akamai | 259 | 1% | 5 | 25.5% | Small firms, London-skewed niche |
| Bunny | 204 | 0.8% | 8 | 11.8% | Small firms, less London-skewed |
| Fastly | 129 | 0.5% | 7 | 31% | Small firms, London-weighted niche |
| ShortPixel | 119 | 0.5% | 7 | 16% | Small firms, image optimisation |
| ImageEngine | 56 | 0.2% | 8 | 3.6% | Small firms, non-London niche |
| Uploadcare | 39 | 0.2% | — | — | View these companies in Firmbase → |
| Section.io | 32 | 0.1% | — | — | View these companies in Firmbase → |
| Filestack | 21 | 0.1% | — | — | View these companies in Firmbase → |
Systems detected below the page threshold appear with counts only; their full lists are available in the Firmbase app.
Market leader by size
Under 10 employees
88.5% of band
Cloudflare accounts for 88.5% of the 16,354 companies with a detectable CDN in this band. The smallest B2C employers are therefore concentrated around one system, with Amazon CloudFront, Amazon S3 and smaller providers sharing the remainder.
10–50 employees
84.2% of band
Cloudflare remains first among 10–50 employee companies, with 84.2% share across 8,199 companies. Amazon CloudFront and Amazon S3 form the main secondary layer, while the rest of the market is fragmented.
Over 50 employees
88.4% of band
Cloudflare also leads the over 50 employee band, at 88.4% across 1,065 companies. Larger B2C employers do not show a materially different first-choice pattern from the smaller bands.
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
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