CDN Used by UK Media Companies: Market Share (2026)
Detected CDN usage spans 1,720 of 92,220 trading UK media companies, with Cloudflare taking the largest observed share at 88.7%.
Among 92,220 trading UK media companies, 1,720 have a detectable CDN. Cloudflare dominates detected use, appearing at 88.7% with 1,526 companies, followed by Amazon CloudFront at 9.4% with 162 companies and Amazon S3 at 9.1% with 156 companies.
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The same pattern holds across company-size bands. Cloudflare leads among under-10-employee companies at 88.6% of 1,259 companies, in the 10–50 band at 89.4% of 426 companies, and among over-50-employee companies at 82.9% of 35 companies.
Smaller systems form a thin tail rather than a second tier. Akamai appears at 1.2% with 21 companies, Fastly at 0.9% with 16, Bunny at 0.8% with 14, Filestack at 0.6% with 10 and Section.io at 0.6% with 10; 2 further systems cover 5 companies between them.
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Included
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1,718
media with detected CDN
Of 92,170 UK media
1.9%
Detection rate
2026
10
Systems detected
In this category
88.7%
Leader share
Cloudflare
UK Media CDN market share
Share of the 1,718 UK Media with a detectable system. As of June 2026.
CDN compared
| System | UK Media | Share | Median headcount | London share | Typical profile |
|---|---|---|---|---|---|
| Cloudflare | 1,524 | 88.7% | 5 | 44.7% | Small media firms, widest adoption |
| Amazon CloudFront | 162 | 9.4% | 5 | 46.3% | Small media firms, secondary usage |
| Amazon S3 | 156 | 9.1% | 6 | 50.6% | Small London-skewing media firms |
| Akamai | 21 | 1.2% | — | — | Get these companies as a spreadsheet → |
| Fastly | 16 | 0.9% | — | — | Get these companies as a spreadsheet → |
| Bunny | 14 | 0.8% | — | — | Get these companies as a spreadsheet → |
| Filestack | 10 | 0.6% | — | — | Get these companies as a spreadsheet → |
| Section.io | 10 | 0.6% | — | — | Get these companies as a spreadsheet → |
| ShortPixel | 5 | 0.3% | — | — | Get these companies as a spreadsheet → |
| Uploadcare | 4 | 0.2% | — | — | Get 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 Media with under 10 employees, Cloudflare leads at 88.6% of the 1,257 with a detectable system; among UK Media with 10–50 employees, Cloudflare leads at 89.4% of the 426 with a detectable system; and among UK Media with over 50 employees, Cloudflare leads at 82.9% of the 35 with a detectable system.
Under 10 employees
88.6% of band
This is the largest detected band, with 1,259 companies and Cloudflare at 88.6%. Amazon CloudFront and Amazon S3 are the next most visible alternatives across the wider market, while smaller systems sit in low double or single digits.
10–50 employees
89.4% of band
The 10–50 employee band covers 426 companies and looks much like the smaller-company segment, with Cloudflare at 89.4%. Competition is mostly between Amazon CloudFront and Amazon S3 below that, with Akamai, Fastly, Bunny, Filestack and Section.io appearing at much lower levels overall.
Over 50 employees
82.9% of band
Only 35 detected companies sit in the over-50-employee band, so the market is thinner at this size. Cloudflare still leads with 82.9%, leaving the remaining share spread across the larger cloud and specialist CDN options.
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.
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UK Media by CDN
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Frequently asked questions
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