As of October 8, 2026, Klarna Checkout is used by 111,801 websites in the TechLeads index: 2.1% of all Payment processors detections, the 10th most-used of 147 Payment processors technologies.
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Citation
TechLeads. "Klarna Checkout Customers and Market Share." Data as of October 8, 2026. https://techleads.fyi/technology/klarna-checkout/market-shareHTML link
<a href="https://techleads.fyi/technology/klarna-checkout/market-share">Klarna Checkout market share (TechLeads data)</a>Websites using each technology in the TechLeads index, and its share of all Payment processors detections.
| # | Technology | Websites | Share |
|---|---|---|---|
| 1 | PayPal | 886,419 | 16.4% |
| 2 | Stripe | 617,504 | 11.4% |
| 3 | PayPal Checkout | 592,950 | 11.0% |
| 4 | Apple Pay | 588,768 | 10.9% |
| 5 | Shop Pay | 508,262 | 9.4% |
| 6 | Visa | 470,783 | 8.7% |
| 7 | Mastercard | 448,800 |
In HTTP Archive's monthly crawl of public websites, Klarna Checkout was detected on 318,530 pages in September 2026, up 77.9% from a year earlier. Among the 1,000 most-visited sites, it appeared on 2. HTTP Archive is a separate dataset from the TechLeads index, so its numbers are not added to ours.
Same month, other Buy now pay later technologies in HTTP Archive: Affirm 26,244, Afterpay 25,811, Sezzle 10,749, Scalapay 10,118, Zip 9,767.
Based on country-code domains (such as .de or .co.uk); websites on .com and other generic domains are not assigned a country.
See all 111,801 websites using Klarna Checkout or download the full list as a CSV for $29.
TechLeads scans public websites and detects Klarna Checkout from signals in the page HTML, scripts, cookies, HTTP headers and DNS records. Market share is Klarna Checkout's website count divided by the website counts of all Payment processors technologies we track; a site using two Payment processors tools counts for both. Counts were last refreshed on October 8, 2026 and update daily.
| 8.3% |
| 8 | Google Pay | 422,679 | 7.8% |
| 9 | American Express | 420,778 | 7.8% |
| 10 | Klarna Checkout | 111,801 | 2.1% |
| 11 | Venmo | 54,280 | 1.0% |
| 12 | Amazon Pay | 47,886 | 0.88% |
| 13 | Patreon | 41,156 | 0.76% |
| 14 | Razorpay | 31,563 | 0.58% |
| 15 | authorize.net | 16,528 | 0.31% |
| 16 | Braintree | 16,028 | 0.30% |
| 17 | SkyVerge | 14,682 | 0.27% |
| 18 | Recharge | 14,589 | 0.27% |
| 19 | Affirm | 10,377 | 0.19% |
| 20 | Sezzle | 6,693 | 0.12% |
| 21 | Plaid | 6,378 | 0.12% |
Rows link to each competitor's market share page where one exists. The table lists the 21 most-used technologies; ranks are by website count.